A close examination of leaves on the ground will likely.
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 shrubdigging.clubted Reading Time: 2 mins. May 11, There is a tree disease called Anthracnose that can cause leaf drop in the spring.
I do not know if it attacks maples. It is common on certain ash and sycamore (Fraxinus and Platanus) but not on the maples (Acer) around here. Apr 12, Why is my maple tree losing lots of leaves now? You said the leaves were still green when they fall, but the stems looked darkened. There could be several reasons for leaf drop Author: Tom Bruton. Jul 28, All of them"leafed" out this spring, but the leaves have become droopy and unhealthy looking except for the Norway. The sugar maple particularly looks unhealthy with the leaves drooping and wilted, and browning.
The red maples are also drooping but not as discolored. Any ideas what might be causing this?Estimated Reading Time: 3 mins.
When the tree (or plant) starts losing more water than it's taking in, it will drop some of its leaves to help regulate its water balance. It sounds like your Maple is stressed and needs water; if your tree is a Red Maple, it is definitely stressed for water. Red Maples are.