Location: west central Wisconsin (USA)
August 4, 2011 7:33 pm
I have a bunch of these worms on a weeping willow tree, what are they & how do I get rid of them? are they dangerous? I have never seen them here before. There are yellow ones & also Pink ones. they look very similar & I suspect they could be males & females. they appear to be eating the tree leaves. We have had warmer then average temps here this year & lots of rain.
Signature: Thanks for any help
Though they look like caterpillars, these are actually the larvae of Elm Sawflies, Cimbex americana. Sawflies are related to bees and wasps. We do not give extermination advice.