Studies on the Synergistic Effects of Avermectin and Bacillus thuringiensis on lteortia vitessoides Moore
The synergistic effects of avermectin, Bacillus thuringiensis, and their mixtures on Heortia vitessoides were tested in the laboratory by the leaf-dipping method. The results showed that the LC50 of avermectin and Bacillus thuringiensis were 0. 0000001599mg/L and 0. 0006943385mg/L, respectively. The mixture of avermeetin and Bacillus thuringiensis with ratio of 2 ： 8 or 1 ： 9 had remarkable synergistic effects.
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