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Evaluation of adjuvants for use with bacillus thuringiensis against heliothis armigera huebn


Journal of Applied Entomology 103(3): 313-319
Evaluation of adjuvants for use with bacillus thuringiensis against heliothis armigera huebn
In search for adjuvants that may enhance the effectiveness of Bacillus thuringiensis against Heliothis armigera, soybean oil, soybean flour, corn flour, cottonseed flour, ground chick peas were found to improve the efficacy of the endotoxin of Bacillus thurigiensis var. kurstaki HD-I. Bait formulations containing cottonseed kernels extracted with ethanol and hexane-water were effective as well against the same species. The effect increased with the increase in the concentration of the bait from 2 to 10%. Variations in the concentration of raffinose, corn extract or cottonseed oil in these baits caused no changes in the efficacy of the pathogen. Sucrose, maltose and lactose, also caused an increase in the potency of the pathogen in varying degrees, but sucrose was the most effective.


Accession: 005395960



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