Abstract
Efficiency of Diple 2x ((Bacillus thuringiensis var. kurstaki) alone and its mixture with two insecticides against the Egyptian cotton leaf worm Spodoptera littoralis (Lepidoptera: Noctuidae).
Highlights
The entomopathogenic bacteria, Bacillus thuringiensis represents a good example for biological controlof insect pests
Toxicity tests: Data presented in Table (1) showed that Lufenuron was the highest effective insecticides against the 2nd instar larvae of S. littoralis followed by methomyle and B.t, respectively
The toxicity index being, 0.004577 and 51.0986 % for Bt and methomyle based on LC50 of Lufenuron 100% .Concerning the efficiency of tested insecticides against the 4th instar larvae of S. littoralis (Table 2 ), Lufenuron was the most effective insecticides followed by Methomyle and B.t, respectively
Summary
The entomopathogenic bacteria, Bacillus thuringiensis represents a good example for biological controlof insect pests. Toxicity tests: Data presented in Table (1) showed that Lufenuron was the highest effective insecticides against the 2nd instar larvae of S. littoralis followed by methomyle and B.t, respectively.
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