{"id":3174,"date":"2016-04-15T13:51:37","date_gmt":"2016-04-15T17:51:37","guid":{"rendered":"http:\/\/blog.bartlett.com\/?p=3174"},"modified":"2023-08-27T10:12:00","modified_gmt":"2023-08-27T10:12:00","slug":"common-signs-of-insect-invaders","status":"publish","type":"post","link":"https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/","title":{"rendered":"Hiding in Plain Sight: Common Signs of Insect Invaders"},"content":{"rendered":"<p>Most tree pests leave visible signs of their presence \u2013 if you know what to look for.<\/p>\n<p>Sometimes it&#8217;s easy to dismiss these observable symptoms. After all, it&#8217;s just a few tiny holes in the trunk or slight withering of the foliage. Unfortunately, as an infestation worsens, the plant material deteriorates and the overall appearance of the landscape suffers.\u00a0In some cases, the problem may progress to a point where the plant cannot be brought back to health. The only option then becomes removal and replacement.<\/p>\n<p><!--more--><\/p>\n<p>It&#8217;s always easier to prevent an unsightly or destructive issue instead of waiting for it to happen and then reacting after the fact.\u00a0But when your list of &#8216;should-dos&#8217; is long and your budget short, treatments to suppress insects don\u2019t always make the cut. With that in mind, understanding the types of pests that impact trees and shrubs, as well as the associated symptoms, can help ensure infestations are identified before irreparable damage is done.<\/p>\n<h2>Boring Insects<\/h2>\n<p>Considered the most destructive pests of ornamental trees and shrubs, these insects tunnel inside the tree feeding on the inner bark.\u00a0Though external evidence may be minimal, especially in the early years of an infestation, devastating internal injuries make it impossible for the tree to transport water and nutrients. Boring insects are often (though not always) secondary invaders, attacking a tree that is already under stress.<\/p>\n<figure id=\"attachment_3259\" aria-describedby=\"caption-attachment-3259\" style=\"width: 640px\" class=\"wp-caption aligncenter\"><a title=\"Borer Damage\" href=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/boring-insect-damage-01.jpg\" data-rel=\"lightbox-gallery-1\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-3259 size-full\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/boring-insect-damage-01_medium.jpg\" width=\"640\" height=\"480\" \/><\/a><figcaption id=\"caption-attachment-3259\" class=\"wp-caption-text\"><strong>Photo Gallery:<\/strong> <a title=\"Borer Damage\" href=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/boring-insect-damage-01.jpg\" data-rel=\"lightbox-gallery-2\">Damage from boring insects<\/a>.<\/figcaption><\/figure>\n<div style=\"display: none;\">\n<div id='gallery-1' class='gallery galleryid-3174 gallery-columns-1 gallery-size-large'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/boring-insect-damage-02\/'><img decoding=\"async\" width=\"1024\" height=\"765\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/boring-insect-damage-02-1024x765.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/boring-insect-damage-02-1024x765.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/boring-insect-damage-02-300x224.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/boring-insect-damage-02-768x574.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/boring-insect-damage-02-1536x1147.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/boring-insect-damage-02-2048x1530.jpg 2048w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/boring-insect-damage-02-1568x1171.jpg 1568w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/yellowwood\/'><img decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/yellowwood-768x1024.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/yellowwood-768x1024.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/yellowwood-225x300.jpg 225w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/yellowwood-1152x1536.jpg 1152w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/yellowwood-1536x2048.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/yellowwood-1568x2091.jpg 1568w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/yellowwood-scaled.jpg 1920w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/tx-borer-damage\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"770\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/tx-borer-damage.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/tx-borer-damage.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/tx-borer-damage-300x226.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/tx-borer-damage-768x578.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/black-turpentine-beetle\/'><img loading=\"lazy\" decoding=\"async\" width=\"957\" height=\"776\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/black-turpentine-beetle.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/black-turpentine-beetle.jpg 957w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/black-turpentine-beetle-300x243.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/black-turpentine-beetle-768x623.jpg 768w\" sizes=\"(max-width: 957px) 100vw, 957px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/asian-longhorned-beetle-holes\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"679\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/asian-longhorned-beetle-holes-1024x679.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/asian-longhorned-beetle-holes-1024x679.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/asian-longhorned-beetle-holes-300x199.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/asian-longhorned-beetle-holes-768x509.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/asian-longhorned-beetle-holes-1536x1019.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/asian-longhorned-beetle-holes-2048x1358.jpg 2048w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/asian-longhorned-beetle-holes-1568x1040.jpg 1568w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\n<div id='gallery-2' class='gallery galleryid-3174 gallery-columns-1 gallery-size-large'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/boring-insect-damage-02\/'><img decoding=\"async\" width=\"1024\" height=\"765\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/boring-insect-damage-02-1024x765.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/boring-insect-damage-02-1024x765.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/boring-insect-damage-02-300x224.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/boring-insect-damage-02-768x574.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/boring-insect-damage-02-1536x1147.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/boring-insect-damage-02-2048x1530.jpg 2048w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/boring-insect-damage-02-1568x1171.jpg 1568w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/yellowwood\/'><img decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/yellowwood-768x1024.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/yellowwood-768x1024.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/yellowwood-225x300.jpg 225w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/yellowwood-1152x1536.jpg 1152w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/yellowwood-1536x2048.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/yellowwood-1568x2091.jpg 1568w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/yellowwood-scaled.jpg 1920w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/tx-borer-damage\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"770\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/tx-borer-damage.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/tx-borer-damage.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/tx-borer-damage-300x226.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/tx-borer-damage-768x578.jpg 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/black-turpentine-beetle\/'><img loading=\"lazy\" decoding=\"async\" width=\"957\" height=\"776\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/black-turpentine-beetle.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/black-turpentine-beetle.jpg 957w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/black-turpentine-beetle-300x243.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/black-turpentine-beetle-768x623.jpg 768w\" sizes=\"(max-width: 957px) 100vw, 957px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/asian-longhorned-beetle-holes\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"679\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/asian-longhorned-beetle-holes-1024x679.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/asian-longhorned-beetle-holes-1024x679.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/asian-longhorned-beetle-holes-300x199.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/asian-longhorned-beetle-holes-768x509.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/asian-longhorned-beetle-holes-1536x1019.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/asian-longhorned-beetle-holes-2048x1358.jpg 2048w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/asian-longhorned-beetle-holes-1568x1040.jpg 1568w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\n<\/div>\n<h3>Symptoms<\/h3>\n<ul>\n<li>Exit holes in the trunk or branches<\/li>\n<li>Sawdust-like debris or frass<\/li>\n<li>Loss of leaves<\/li>\n<\/ul>\n<h3>Notable Pests<\/h3>\n<ul>\n<li>Emerald Ash Borer<\/li>\n<li>Asian Longhorned Beetle<\/li>\n<li><a title=\"Ambrosia Beetle\" href=\"https:\/\/www.bartlett.com\/tree-advice-and-resources\/Ambrosia-Beetle\">Ambrosia Beetle<\/a><\/li>\n<li><a title=\"Bronze Birch Borer\" href=\"https:\/\/www.bartlett.com\/tree-advice-and-resources\/insects-and-pests\/bronze-birch-borer\">Bronze Birch Borer<\/a><\/li>\n<li><a title=\"Two-lined Chestnut Borer\" href=\"https:\/\/www.bartlett.com\/tree-advice-and-resources\/technical-reports\/two-lined-chestnut-borer\">Two-lined Chestnut Borer<\/a><\/li>\n<li>Weevils and Bark Beetles<\/li>\n<\/ul>\n<h2>Chewing Insects<\/h2>\n<p>Unsightly feeding damage is the hallmark of insects that consume leaves or needles and the results of their presence can be a noticeable blemish on an otherwise beautiful property. Minor defoliation is typically not a serious problem for otherwise healthy trees. However, a severe infestation or repeated loss of leaf surface over several years can significantly reduce a plant\u2019s ability to grow and thrive.<\/p>\n<figure id=\"attachment_3256\" aria-describedby=\"caption-attachment-3256\" style=\"width: 640px\" class=\"wp-caption aligncenter\"><a title=\"Chewing Insect Damage\" href=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/cankerworm.jpg\" data-rel=\"lightbox-gallery-3\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3256 size-full\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/cankerworm_medium.jpg\" width=\"640\" height=\"480\" \/><\/a><figcaption id=\"caption-attachment-3256\" class=\"wp-caption-text\"><strong>Photo Gallery:<\/strong> <a title=\"Chewing Insect Damage\" href=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/cankerworm.jpg\" data-rel=\"lightbox-gallery-4\">Damage from chewing insects<\/a>.<\/figcaption><\/figure>\n<div style=\"display: none;\">\n<div id='gallery-3' class='gallery galleryid-3174 gallery-columns-1 gallery-size-large'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/cankerworm-on-elm\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/cankerworm-on-elm-1024x768.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/cankerworm-on-elm-1024x768.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/cankerworm-on-elm-300x225.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/cankerworm-on-elm-768x576.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/cankerworm-on-elm-1536x1152.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/cankerworm-on-elm-2048x1536.jpg 2048w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/cankerworm-on-elm-1568x1176.jpg 1568w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/tent-caterpillar\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/tent-caterpillar-1024x768.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/tent-caterpillar-1024x768.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/tent-caterpillar-300x225.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/tent-caterpillar-768x576.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/tent-caterpillar-1536x1152.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/tent-caterpillar-2048x1536.jpg 2048w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/tent-caterpillar-1568x1176.jpg 1568w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/opm-damage\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/opm-damage-1024x683.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/opm-damage-1024x683.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/opm-damage-300x200.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/opm-damage-768x513.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/opm-damage-1536x1025.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/opm-damage-2048x1367.jpg 2048w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/opm-damage-1568x1046.jpg 1568w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/saw-fly-larvae-feeding-on-rowan\/'><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"720\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/saw-fly-larvae-feeding-on-rowan.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/saw-fly-larvae-feeding-on-rowan.jpg 960w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/saw-fly-larvae-feeding-on-rowan-300x225.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/saw-fly-larvae-feeding-on-rowan-768x576.jpg 768w\" sizes=\"(max-width: 960px) 100vw, 960px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/black-vine-weevil-rhody\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/black-vine-weevil-rhody-1024x768.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/black-vine-weevil-rhody-1024x768.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/black-vine-weevil-rhody-300x225.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/black-vine-weevil-rhody-768x576.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/black-vine-weevil-rhody-1536x1152.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/black-vine-weevil-rhody-2048x1536.jpg 2048w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/black-vine-weevil-rhody-1568x1176.jpg 1568w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/bagworm-on-arborvitae\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/bagworm-on-arborvitae-1024x768.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/bagworm-on-arborvitae-1024x768.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/bagworm-on-arborvitae-300x225.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/bagworm-on-arborvitae-768x576.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/bagworm-on-arborvitae-1536x1152.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/bagworm-on-arborvitae-2048x1536.jpg 2048w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/bagworm-on-arborvitae-1568x1176.jpg 1568w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\n<div id='gallery-4' class='gallery galleryid-3174 gallery-columns-1 gallery-size-large'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/cankerworm-on-elm\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/cankerworm-on-elm-1024x768.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/cankerworm-on-elm-1024x768.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/cankerworm-on-elm-300x225.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/cankerworm-on-elm-768x576.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/cankerworm-on-elm-1536x1152.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/cankerworm-on-elm-2048x1536.jpg 2048w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/cankerworm-on-elm-1568x1176.jpg 1568w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/tent-caterpillar\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/tent-caterpillar-1024x768.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/tent-caterpillar-1024x768.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/tent-caterpillar-300x225.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/tent-caterpillar-768x576.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/tent-caterpillar-1536x1152.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/tent-caterpillar-2048x1536.jpg 2048w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/tent-caterpillar-1568x1176.jpg 1568w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/opm-damage\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/opm-damage-1024x683.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/opm-damage-1024x683.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/opm-damage-300x200.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/opm-damage-768x513.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/opm-damage-1536x1025.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/opm-damage-2048x1367.jpg 2048w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/opm-damage-1568x1046.jpg 1568w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/saw-fly-larvae-feeding-on-rowan\/'><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"720\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/saw-fly-larvae-feeding-on-rowan.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/saw-fly-larvae-feeding-on-rowan.jpg 960w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/saw-fly-larvae-feeding-on-rowan-300x225.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/saw-fly-larvae-feeding-on-rowan-768x576.jpg 768w\" sizes=\"(max-width: 960px) 100vw, 960px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/black-vine-weevil-rhody\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/black-vine-weevil-rhody-1024x768.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/black-vine-weevil-rhody-1024x768.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/black-vine-weevil-rhody-300x225.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/black-vine-weevil-rhody-768x576.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/black-vine-weevil-rhody-1536x1152.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/black-vine-weevil-rhody-2048x1536.jpg 2048w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/black-vine-weevil-rhody-1568x1176.jpg 1568w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/bagworm-on-arborvitae\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/bagworm-on-arborvitae-1024x768.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/bagworm-on-arborvitae-1024x768.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/bagworm-on-arborvitae-300x225.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/bagworm-on-arborvitae-768x576.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/bagworm-on-arborvitae-1536x1152.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/bagworm-on-arborvitae-2048x1536.jpg 2048w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/bagworm-on-arborvitae-1568x1176.jpg 1568w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\n<\/div>\n<p>&nbsp;<\/p>\n<h3>Symptoms<\/h3>\n<ul>\n<li>Nests or the insects themselves<\/li>\n<li>Holes in leaves<\/li>\n<li><!--?php echo $spelling1; ?--> or the complete removal of leaf tissue<\/li>\n<li>Unseasonable loss of leaves<\/li>\n<\/ul>\n<h3>Notable Pests<\/h3>\n<ul>\n<li><a title=\"Winter Moth\" href=\"https:\/\/www.bartlett.com\/tree-advice-and-resources\/technical-reports\/winter-moth\">Winter Moth<\/a><\/li>\n<li><a title=\"Gypsy Moth\" href=\"https:\/\/www.bartlett.com\/tree-advice-and-resources\/Gypsy-Moth\">Gypsy Moth<\/a><\/li>\n<li><a title=\"Tent Caterpillars\" href=\"https:\/\/www.bartlett.com\/tree-advice-and-resources\/technical-reports\/tent-caterpillar\">Tent Caterpillars<\/a><\/li>\n<li><a title=\"Oak Processionary Moth\" href=\"https:\/\/www.bartletttree.co.uk\/resources\/insects-and-pests\/oak-processionary-moth.cfm\">Oak Processionary Moth<\/a><\/li>\n<li><a title=\"Webworms\" href=\"https:\/\/www.bartlett.com\/tree-advice-and-resources\/technical-reports\/fall-webworm\">Webworms<\/a><\/li>\n<li>Oakworm<\/li>\n<li><a title=\"Cankerworm\" href=\"https:\/\/www.bartlett.com\/tree-advice-and-resources\/technical-reports\/cankerworms\">Cankerworm<\/a><\/li>\n<li>Leaf Beetles and Leaf Miners<\/li>\n<\/ul>\n<h2>Sucking Insects<\/h2>\n<p>A number of insects survive by sucking sap and nutrients from the plant with tiny, needle-like mouthparts. Given their small size, these pests may go undetected for years, building a damaging population over time that could have easily been prevented. Nearly all types of woody ornamentals are at risk of infestation by some type of pest in this category.<\/p>\n<figure id=\"attachment_3254\" aria-describedby=\"caption-attachment-3254\" style=\"width: 640px\" class=\"wp-caption aligncenter\"><a title=\"Sucking Insect Damage\" href=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/aphids-of-fir-victoria-bc.jpg\" data-rel=\"lightbox-gallery-5\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3254 size-full\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/aphids-of-fir-victoria-bc_medium.jpg\" width=\"640\" height=\"480\" \/><\/a><figcaption id=\"caption-attachment-3254\" class=\"wp-caption-text\"><strong>Photo Gallery:<\/strong> <a title=\"Sucking Insect Damage\" href=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/aphids-of-fir-victoria-bc.jpg\" data-rel=\"lightbox-gallery-6\">Damage from sucking insects<\/a>.<\/figcaption><\/figure>\n<div style=\"display: none;\">\n<div id='gallery-5' class='gallery galleryid-3174 gallery-columns-1 gallery-size-large'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/foliar-symptoms-of-white-fly-and-mites\/'><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/foliar-symptoms-of-white-fly-and-mites-e1460670603669-768x1024.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/foliar-symptoms-of-white-fly-and-mites-e1460670603669-768x1024.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/foliar-symptoms-of-white-fly-and-mites-e1460670603669-225x300.jpg 225w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/foliar-symptoms-of-white-fly-and-mites-e1460670603669-1152x1536.jpg 1152w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/foliar-symptoms-of-white-fly-and-mites-e1460670603669.jpg 1536w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/los-gato-tulip-poplar-with-scale-honeydew\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/los-gato-tulip-poplar-with-scale-honeydew-1024x768.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/los-gato-tulip-poplar-with-scale-honeydew-1024x768.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/los-gato-tulip-poplar-with-scale-honeydew-300x225.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/los-gato-tulip-poplar-with-scale-honeydew-768x576.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/los-gato-tulip-poplar-with-scale-honeydew-1536x1152.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/los-gato-tulip-poplar-with-scale-honeydew-2048x1536.jpg 2048w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/los-gato-tulip-poplar-with-scale-honeydew-1568x1176.jpg 1568w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/magnolia-scale-il\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/magnolia-scale-il-1024x768.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/magnolia-scale-il-1024x768.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/magnolia-scale-il-300x225.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/magnolia-scale-il-768x576.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/magnolia-scale-il-1536x1152.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/magnolia-scale-il-2048x1536.jpg 2048w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/magnolia-scale-il-1568x1176.jpg 1568w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/lacebug\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/lacebug-1024x768.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/lacebug-1024x768.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/lacebug-300x225.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/lacebug-768x576.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/lacebug-1536x1152.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/lacebug-2048x1536.jpg 2048w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/lacebug-1568x1176.jpg 1568w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/aphids\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/aphids-1024x768.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/aphids-1024x768.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/aphids-300x225.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/aphids-768x576.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/aphids-1536x1152.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/aphids-1568x1176.jpg 1568w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/aphids-rotated.jpg 1632w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/redbud-aphids-leafhoppers-tx\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/redbud-aphids-leafhoppers-tx-1024x768.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/redbud-aphids-leafhoppers-tx-1024x768.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/redbud-aphids-leafhoppers-tx-300x225.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/redbud-aphids-leafhoppers-tx-768x576.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/redbud-aphids-leafhoppers-tx-1536x1152.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/redbud-aphids-leafhoppers-tx-2048x1536.jpg 2048w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/redbud-aphids-leafhoppers-tx-1568x1176.jpg 1568w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/mites-on-cedar-hedge\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/mites-on-cedar-hedge-1024x768.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/mites-on-cedar-hedge-1024x768.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/mites-on-cedar-hedge-300x225.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/mites-on-cedar-hedge-768x576.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/mites-on-cedar-hedge-1536x1152.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/mites-on-cedar-hedge-2048x1536.jpg 2048w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/mites-on-cedar-hedge-1568x1176.jpg 1568w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\n<div id='gallery-6' class='gallery galleryid-3174 gallery-columns-1 gallery-size-large'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/foliar-symptoms-of-white-fly-and-mites\/'><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/foliar-symptoms-of-white-fly-and-mites-e1460670603669-768x1024.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/foliar-symptoms-of-white-fly-and-mites-e1460670603669-768x1024.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/foliar-symptoms-of-white-fly-and-mites-e1460670603669-225x300.jpg 225w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/foliar-symptoms-of-white-fly-and-mites-e1460670603669-1152x1536.jpg 1152w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/foliar-symptoms-of-white-fly-and-mites-e1460670603669.jpg 1536w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/los-gato-tulip-poplar-with-scale-honeydew\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/los-gato-tulip-poplar-with-scale-honeydew-1024x768.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/los-gato-tulip-poplar-with-scale-honeydew-1024x768.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/los-gato-tulip-poplar-with-scale-honeydew-300x225.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/los-gato-tulip-poplar-with-scale-honeydew-768x576.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/los-gato-tulip-poplar-with-scale-honeydew-1536x1152.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/los-gato-tulip-poplar-with-scale-honeydew-2048x1536.jpg 2048w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/los-gato-tulip-poplar-with-scale-honeydew-1568x1176.jpg 1568w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" 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https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/magnolia-scale-il-1568x1176.jpg 1568w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/lacebug\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/lacebug-1024x768.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/lacebug-1024x768.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/lacebug-300x225.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/lacebug-768x576.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/lacebug-1536x1152.jpg 1536w, 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https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/aphids-1536x1152.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/aphids-1568x1176.jpg 1568w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/aphids-rotated.jpg 1632w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/redbud-aphids-leafhoppers-tx\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/redbud-aphids-leafhoppers-tx-1024x768.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/redbud-aphids-leafhoppers-tx-1024x768.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/redbud-aphids-leafhoppers-tx-300x225.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/redbud-aphids-leafhoppers-tx-768x576.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/redbud-aphids-leafhoppers-tx-1536x1152.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/redbud-aphids-leafhoppers-tx-2048x1536.jpg 2048w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/redbud-aphids-leafhoppers-tx-1568x1176.jpg 1568w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/mites-on-cedar-hedge\/'><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/mites-on-cedar-hedge-1024x768.jpg\" class=\"attachment-large size-large\" alt=\"\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/mites-on-cedar-hedge-1024x768.jpg 1024w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/mites-on-cedar-hedge-300x225.jpg 300w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/mites-on-cedar-hedge-768x576.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/mites-on-cedar-hedge-1536x1152.jpg 1536w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/mites-on-cedar-hedge-2048x1536.jpg 2048w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/mites-on-cedar-hedge-1568x1176.jpg 1568w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\n<\/div>\n<p><!--\n\n[caption id=\"attachment_3181\" align=\"aligncenter\" width=\"768\"]<img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-3181\" src=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/5203003.jpg\" alt=\"Infested American elm leaf, Photo courtesy of Steven Katovich, USDA Forest Service, Bugwood.org\" width=\"768\" height=\"512\" srcset=\"https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/5203003.jpg 768w, https:\/\/www.bartlett.com\/blog\/wp-content\/uploads\/2016\/04\/5203003-300x200.jpg 300w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/> Infested American elm leaf, Photo courtesy of Steven Katovich, USDA Forest Service, Bugwood.org[\/caption]\n\n--><\/p>\n<h3>Symptoms<\/h3>\n<ul>\n<li>Withered leaves<\/li>\n<li>Branch and tip dieback<\/li>\n<li>Loss of needles or premature leaf drop<\/li>\n<li>The presence of sticky sap or honeydew<\/li>\n<li>A coating of sooty <!--?php echo $spelling2; ?--><\/li>\n<\/ul>\n<h3>Notable Pests<\/h3>\n<ul>\n<li><a title=\"Mites\" href=\"https:\/\/www.bartlett.com\/tree-advice-and-resources\/Spider-Mites\">Mites<\/a><\/li>\n<li><a title=\"Scales\" href=\"https:\/\/www.bartlett.com\/tree-advice-and-resources\/technical-reports\/scale-insects\">Scales<\/a><\/li>\n<li><a title=\"Aphids\" href=\"https:\/\/www.bartlett.com\/tree-advice-and-resources\/Aphids\">Aphids<\/a><\/li>\n<li>Whiteflies<\/li>\n<li>Psyllids<\/li>\n<li>Adelgids (e.g., <a title=\"Hemlock Wooly Adelgid\" href=\"https:\/\/www.bartlett.com\/tree-advice-and-resources\/insects-and-pests\/hemlock-woolly-adelgid\">Hemlock Wooly Adelgid<\/a>, Spruce Gall Adelgid)<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Most tree pests leave visible signs of their presence \u2013 if you know what to look for. Sometimes it&#8217;s easy to dismiss these observable symptoms. After all, it&#8217;s just a few tiny holes in the trunk or slight withering of the foliage. Unfortunately, as an infestation worsens, the plant material deteriorates and the overall appearance&hellip; <a class=\"continue\" href=\"https:\/\/www.bartlett.com\/blog\/common-signs-of-insect-invaders\/\">Read More<span> Hiding in Plain Sight: Common Signs of Insect Invaders<\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":3232,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[7,8],"tags":[],"class_list":["post-3174","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pests-and-diseases","category-tree-advice"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.2 (Yoast SEO v27.2) - 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