With the warmer temperature’s, the insect activity in our landscapes have picked up. Wintermoth larvae are now 1-2 mm in length, still very small, but they are feeding and causing damage. I have seen heavy populations in Boxford, Manchester, Middleton, and Beverly. If you have not made arrangements for treatment, this would be a good time to call your arborist.
Other notable active pests observed: carpenter ants, mosquitos, ticks, and boxwood leafminer. Pine sawfly eggs are close to hatching as well, so watch your hard pines, such as mugo, red, Austrian, and scotch for these ravenous feeders.
Several evergreen trees and shrubs are still showing symptoms of winter damage. A certified arborist can help you assess the damage, and determine if they will recover.
Lastly, as you are preparing to lay down all that fresh new mulch- be careful not to put too much down at the base of your trees. I was recently at a property where the homeowner had applied too much over the past few years, and has trees that are dying. Too much mulch makes it difficult for a tree or shrub to get water and oxygen, which will stress them significantly and make secondary pests and pathogens more likely to target the tree. 1-2 inches at the base of the tree is sufficient, and 3-4 inches is acceptable away fron the tree’s trunk.
As always, the Certified Arborists at Mayer Tree Service are here for you!