maple petiole borer

[cord arrow]

I have these nasty little buggers in a sugar maple...spreading to another.
I've noticed leaves dropping next door as well...

The tree doesn't seem to suffer too much after the little bastids are done feeding...but it's a hassle.

I've read various courses of action...from boom truck spraying to ground applied granular product.

Help a brother out....

Thanks.

 

[S Mc]

Classic identification of this pest appears to be the green leaf drop at this time of year with a portion of the petiole attached. Tip of petiole should be black.

Extention service pdfs I have read all state that this is an insect which causes "insiginificant" damage to the tree, correct timing is very difficult to achieve for insecticides and therefore is not recommended.

http://www.extension.umn.edu/yardandgarden/ygbriefs/e468maplepetioleborer.html

Sylvia