Pests and Diseases

Blog Archives

Information of tree and shrub pests and diseases.

Reducing the Likelihood of Oak Decline

Oak is one of the most common tree species in the northern hemisphere. Often seen as a symbol of strength and wisdom, oaks are well-known for their longevity and adaptability. However, even these venerable giants are not immune to the

Posted in Pests and Diseases, Tree Species

Wood Boring Insects: Destructive & Silent Tree Killers

Wood boring insects feed on the inner wood (xylem) of roots, trunks, branches or shoots of a plant. While there are hundreds of wood boring species that are not considered pests, some species can cause branch dieback or even mortality.

Posted in Pests and Diseases

Tiny Mites, Big Damage

Mites are minute, plant-feeding arachnids that feed on chlorophyll, the pigment that gives plants their lovely green color. By removing chlorophyll, mites can cause plant foliage to appear bleached or bronzed. Because mites reproduce rapidly, damage to healthy foliage can

Posted in Pests and Diseases

Aphids: Small in Size, Many in Number

Aphids are small, sap-sucking insects. Some of them feed on more than one type of plant— for example, apple grass aphids feed on young new leaves and blossoms of apples until the beginning of summer when they migrate to oats,

Posted in Pests and Diseases

Oystershell Scale: An Unusual Insect Pest

Oystershell scale (Lepidosaphes ulmi) belongs to a group of insects called the armored scales. The “armor,” is produced by a waxy secretion combined with the insect’s own body cast during each molt. This protective outer layer helps shield the oystershell

Posted in Pests and Diseases

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