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Larvicidal activity of the ß‐exotoxin of Bacillus thuringiensis var. thuringiensis Berliner against two species of flies 1
Author(s) -
Wasti S. S.,
Mahadeo C. R.,
Knell J. D.
Publication year - 1973
Publication title -
zeitschrift für angewandte entomologie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.795
H-Index - 60
eISSN - 1439-0418
pISSN - 0044-2240
DOI - 10.1111/j.1439-0418.1973.tb01793.x
Subject(s) - bacillus thuringiensis , exotoxin , phormia regina , biology , pupa , spore , larva , botany , microbiology and biotechnology , horticulture , toxin , bacteria , genetics , calliphoridae
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 LD 50 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 (LD 50 = 8,65 ppm) sowie Phormia regina (LD 50 = 22,9 ppm). Des weiteren wurden bei überlebenden Tieren Puppendeformationen beobachtet.