Where can I buy a pesticide to kill Western Grape Leaf Skeletonizers?

Question:I'm looking specifically for something that contains Bacillus thuringiensis. I have heard of a brand called Certan, but I cannot find it.

Answers:
To my knowledge, CERTAN (Bacillus thuringiensis var. aizawai) is not currently available for homeowners. Not sure where you live but it is sold under the names of "Agree" and "Xentari" and you might be able to purchase them from one of your local Agricultural Dealers.

The following products have been found to be very effective on the Grape Leaf Skeletonizer and they're currenty being used by many organic growers throughout the United States. Some of these can be found at most hardware or garden-nursery centers;


Bacillus thuringiensis kurstaki (also sold under the names of; "Biobit", "Condor", "Cutlass", "Dipel","Full-Bac", "Javelin", "M-Peril" and "MVP")

The Entrust formulation of spinosad (sold as "SpinTor", "Entrust" or "Greenlight Lawn and Garden"

Hope this information helps. GOOD LUCK!

-Certified Professional Crop Consultant with over 30 years of experience and a Degree in Plant Science