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DOSAGE-MORTALITY RESPONSE OF DIFFERENT DIAMONDBACK MOTH POPULATION TO BACILLUS THURINGIENSIS BERLINER AND INSECTICIDES

C. Gailce Leo Justin, R.J. Rabindra*, M. Swamiqppan*

Affiliations

¹Horticultural Research Station Tamil Nadu Agricultural University, Pechiparai - 629 161, India

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Cite article:- Justin Leo Gailce C., Rabindra* R.J., Swamiqppan* M. (2025). DOSAGE-MORTALITY RESPONSE OF DIFFERENT DIAMONDBACK MOTH POPULATION TO BACILLUS THURINGIENSIS BERLINER AND INSECTICIDES. Agricultural Science Digest. 21(4): 256 - 258. doi: .

ABSTRACT

The relative susceptibility of Diamondback moth, Plutella xylostella L. to Bacillus thuringiensis Berliner was studied in larval population of three locations viz., Oddanchatram, Nilgiris and Coimbatore of Tamil Nadu. The studies showed that population from Oddanchatram required a higher level of LC 50 for endosulfan, quinalphos and fenvalerate than that of Nilgiris and Coimbatore population, but these population were equally susceptible to B. thuringiensis. The differential susceptibility may be attributed to the differences in the pesticide use patten, intensity and temperature conditions.

KEYWORDS

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