Mother Earth News When numerous small hornworms are found, you can use Bt ( Bacillus thuringiensis ) or spinosad to kill them. Gardeners who grow plenty of flowers and herbs to attract beneficial insects report having fewer problems with tomato hornworms. Allowing wasps ...
Mother Earth News Bacillus thuringiensis kurstaki (Btk) gives excellent control of leaf-eating caterpillars such as cabbage worms and tomato hornworms, but has no activity against insects that do not eat treated leaves. After the insects eat the bacteria, their guts ... and more »
Daily Green Organic fertilizer is actually soil food that nourishes the organisms, whereas chemical fertilizer feeds plants directly — but much of the chemical fertilizer runs off into lakes, oceans, rivers and groundwater. Growing grasses and other plants in ...
