Controlling maple petiole borer is difficult and generally unnecessary. Although leaf drop may at times be large enough to cause concern, rarely does more than 25% of the tree’s leaves fall.

Trees: Simple ways to control pests, disease Vijai Pandian Recent rain spurred a lush growth on many landscape plants and also enabled fungal diseases, insect pests and weeds.

If the same tree suffers from losing its leaves in subsequent years, it could kill the tree. What you can do to save trees from the invasive elm zigzag sawfly Bugs can be removed by hand in small ...

Starting next week, crews will fan out through Worcester County and the rest of Massachusetts to look for the invasive elm zigzag sawfly that’s a threat to the survival of elm trees.