Section 71
Chapter 70,255

Larvicidal activity of the -exotoxin of Bacillus thuringiensis var. thuringiensis Berliner against two species of flies

Wasti, S.S.; Mahadeo, C.R.; Knell, J.D.

Journal of Applied Entomology 74(1-4): 157-160


ISSN/ISBN: 0931-2048
DOI: 10.1111/j.1439-0418.1973.tb01793.x
Accession: 070254353

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The β-exotoxin of Bacillus thuringiensis Berliner was evaluated for larvicidal activity against Orthellia caesarion in cow manure, and Phormia regina in an artificial diet. Dosages varying from 2.5 to 100 ppm were tested and the LD50 for Orthellia was calculated to be 8.65 ppm and 22.9 ppm for Phormia. Some pupal deformities were also recorded. Zusammenfassung Larvizide Wirkung des β-Exotoxin von Bacillus thuringiensis var. thuringiensis Berliner auf 2 Fliegenarten Das β-Exotoxin von B. thuringiensis var. thuringiensis erwies sich in Laborversuchen als toxisch auf die Larven von Orthellia caesarion (LD50 = 8,65 ppm) sowie Phormia regina (LD50 = 22,9 ppm). Des weiteren wurden bei überlebenden Tieren Puppendeformationen beobachtet.

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