These insects rarely cause significant damage.
Jun 22, Many homeowners take their landscaping seriously. Working hard all year long, particularly in the spring and summer, to ensure their vegetation is healthy and lush. As a result, it can be quite frustrating to find the leaves turning yellow at the start or in the midst of summer. It is a rather common affect that Continue reading →.
Jul 23, I have yet to see a silver maple that did not have this branching. It leads to limb breakage with time and especially in storms. It is a messy tree, constantly dropping fine twigs and leaves. It may be native and fast growing, but makes a lousy street tree and often becomes a hazard tree with age due to internal trunk decay. Laura. Apr 12, There could be several reasons for leaf drop, but the most likely cause may be the leaf stalk borer or petiole borer.
Both insects burrow into the leaf petiole in the spring, causing the leaves to Author: Tom Bruton. May 31, This leaf drop is caused by the feeding of maple petiole borers, Caulocampus acericaulis. Petiole borers are small insects called sawflies, which are non-stinging wasps. The sawfly is only about 1/6 of an inch long and emerges from the soil in the spring to mate and lay eggs near the base of the petiole of maple bushfalling.clubted Reading Time: 2 mins.
Sep 27, Tom, a Davey Tree blog reader, noticed his maple was struggling and reached out to us for help. Tom asked, “My wife and I have a year-old maple tree in our backyard that has been showing signs of stress. The leaves are small, and some of the maple tree branches are dying.
Do you have any recommendations, or is it too late?”. Maple Tree Problems: The Leaves Turn Yellow in Summer. Maple (Acer) is a large genus of trees and shrubs that -- depending on the species -- grow in U.S. Department of Agriculture plant hardiness. Jul 20, When maples suddenly drop their leaves in June or July, it's usually due to drought, a sudden change in temperature or insects like scale, aphids or a specific wasp larva that burrows into the leaf petioles.
When the trees are stressed by drought or sucking insects like aphids, the leaves will turn yellow or brown before dropping.