Oak Trees Have Green Powder After Moth Infestation

Question From: CALIFORNIA
Q: We have 2 oak trees. The moths are gone we were left with a lot of this green powder stuff that is all over the place. What is it and how long does it last?


Folks, you need to have an on-site inspection from a tree doctor, aka, a certified arborist.  http://www.isa-arbor.com/faca/findArborist.aspx   Your trees are valuable assets and may need immediate care by a professional. Happy Yardening, Nancy