Question
Is there anything at all we can do to get rid of these little green pest's? They have the backyard covered. They look like they are on some kind of web. PLEASE HELP!! Thank you in advance for your time.   f

Answer
Jacquelyn,

Unfortunately treating large trees is so difficult and expensive that most people opt to do nothing. The good new is that otherwise healthy trees can sustain a lot of damage without long-term effect. Smaller trees can be treated with one of the newer insecticides, if you have access to the foliage. See the page http://www.livingwithbugs.com/spinosad.html for info about spinosad that may be useful in this case.

Jack DeAngelis
http://www.livingwithbugs.com (the 'Bugs website)