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Name:  Jeanne
Status:   other
Age:   30s
Location: N/A
Country: N/A
Date: Around 1999
Question:
I have two large old cotton woods on my property. Recently I have noticed an infestation of some kind. Most of the leaves have a bubble type growth on each leaf where the leaf meets the stem. I suspect this is a parasite as the leaves have several holes in them. I have not seen a broken casing yet, but suspect this is a cacoon of some sort or an egg pouch. Have you seen anything like this before? Is there anyway to prevent this?


Replies:
Dear Jeanne:

Insect galls probably due to aphids:
http://en.wikipedia.org/wiki/Aphids

aphid control:
http://www.attra.org/attra-pub/gh-aphid.html

ladybugs for insect control:
http://www.biconet.com/biocontrol/ladybug.html

Sincerely,
Anthony R. Brach, Ph.D.

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