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Authors
Affiliations
1 Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore 641 003, IN
2 Tamil Nadu Agricultural University, Coimbatore 641 003, IN
Source
Journal of Biological Control, Vol 2, No 2 (1988), Pagination: 109-111
Abstract
Laboratory bioassay tests on the comparative efficacy of eight Bacillus thuringiensis (B.t.) subspecies against third instar larvae of Plutella xylostella L. as well as its safety to second lnstar larvae of Bombyx mori L. revealed that B.t. subsp. kurstaki (Bactospeine) was the most toxic to larvae of P. xylostella followed by B.t. subsp. thuringiensis and B.t. subsp. kurstaki (lab culture). The B.t.t. and B.t.k. (Bactospeine) were found to be less toxic to the larvae of Bombyx mori than the other species.
Keywords
Bacillus thuringiensis, Subspecies, Toxicity, Plutella xylostella, Bombyx mori.
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