Insects and pests

Obscure scale

Canada, Great Britain, Ireland, United States

Scales are insects that use their needle-like mouthparts to pierce their host and draw food from nutrient-rich tissue…

Our 12-foot Alpine tree is 160 cm from the house with a 70 cm radiu?

It would probably be okay to maintain the tree with regular pruning. This should be done annually to keep the size as...

Our 20-30-year-old Ash tree has rising ground at the base and lower?

This could be a sign of root and/or soil failure. If this is the case, then the tree would need to be removed. Some...

Our Japanese Plum is oozing sap, and we’re worried it might be dise?

One of our Arborist Professionals would be happy to give a complimentary consultation. You can make an appointment by...

Our leaning Stella Cherry Tree had many rotten cherries last year?

Cherry trees are typically pruned in the summer but deadwood cleaning, safety pruning, and thinning could be done in...

Our oak trees have green mold spots about six inches across. Is it detrimental to the tree?

The green spotting on the bark is likely a family of plants called lichens or could be mold developing from irrigation...

Pear thrips

Canada, United States

The pear thrips, Taeniothrips inconsequens (Uzel) is a tiny insect in the order Thysanoptera. There are over 600 spec…

Periodical cicadas

Canada, United States

Periodical cicadas, or the so-called seventeen-year locust, are native to the eastern half of North America and exist…

Pests of pines

Canada, United States

All species of pines are attacked by insects known as bark- and wood-boring beetles. As a group, these insects are hi…