This year’s weather has brought a healthy infestation of insects and diseases. Here are some of the alarming ones:
These insects are closely related to aphids and affect Holly, Euonymus, Yews, and a variety of other trees and shrubs. Scale insects feed by tapping into the plant stem or leaf and withdrawing plant sap. Plants infested with scale will show signs of thinning or yellowing foliage and possibly branch dieback. In severe cases, they can even kill plants.
Hemlock Woolly Adelgid
These insects only affect Hemlocks. They are an aphid-like insect that shows up in cottony masses and sucks plant sap out of needles and stems. This insect is rapidly spreading throughout the Hemlocks in our area. Plants infested with Adelgid will show similar signs as cottony scale, thinning, yellowing, and dieback.
Diplodia Tip Blight vs. Needlecast Disease
These diseases both affect Austrian Pines yet in different ways, and require different treatment plans. Diplodia Tip Blight is evidenced by browning, starting at the tips and spreading toward the stem. Needlecast Disease tends to manifest itself as tiny yellow/brown spots on needles and progresses until entire needle becomes brown and falls.
Repeated seasons of stress from these diseases, over several years, can lead to the tree turning brown, entire branches dying, and the tree becoming deformed. If left unchecked, it can eventually kill mature trees.
Call now to have a professional arborist inspect and identify your pests and develop a custom treatment strategy. 877.308.8733.