The biological pesticide Bacillus thuringiensis (an organic gardening product) is a bacteria applied as a spray to kill caterpillars. Sold under a variety of names such as Thuricide, Dipel, Bio-Worm, and others.*
Bacillus thuringiensis 'Israelensis' (Bti) in water for the control of mosquito larvae. Molasses at 1-2 oz. per gallon of spray also helps. It provides protein and keeps insect-killing bacteria alive on the foliage longer- even during rain. Bt 'San Diego' is good for Colorado potato bettle, elm leaf beetle, and other leaf-chewing beatles.
*I rarely recommend Bt anymore and never as the first choice. I would personally never use it because other things work as well or better such as release of trichogramma wasps as a preventative and EcoSMART or Eco EXEMPT as a curative. Plus Bt kills butterflies. The good side of all this is that more and more exposure is being given to the problems related to GMOs.
New Findings--Bt Toxin from GM crops found in human blood: Dinesh C. Sharma | New Delhi, May 11, 2011 |
Link to orginal article.