Just within the last two days I am finding small pieced of white foam on various plants in my garden/in outside pots. I have removed it, but it returned the next day. I don't see any insects by or in it. Thoughts?
Marion County Oregon
Thank you for your question. It is very difficult to diagnose a problem without photos and knowing what species of plants are affected. Are you seeing spittlebugs? See description here: http://oregonstate.edu/dept/nurspest/spittlebugs.htm