Isolation of mosquito-pathogenic Bacillus sphaericus & B. thuringiensis from the root surface of hydrophytes.
Article
in English
| IMSEAR
| ID: sea-23268
ABSTRACT
Attempts were made to isolate B. sphaericus and B. thuringiensis active against mosquito larvae from the root surface of hydrophytes. Out of 139 samples processed, 86 B. sphaericus and 23 B. thuringiensis isolates were obtained. Sixty two of the B. sphaericus isolates belonged to the serotype H5a5b, 2 to H6 and 22 isolates did not agglutinate with any of the 6 antisera tested. Twenty of the B. thuringiensis isolates belonged to the H14 serotype, 1 each to the H10 and H17 serotype(s) and 1 to an unknown serotype. Fifty nine of the B. sphaericus and 20 of the B. thuringiensis isolates fall under highly toxic category with the LC50 dose of 1-50 ng/ml for Culex quinquefasciatus third instar larvae.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Plants
/
Bacillus
/
Bacillus thuringiensis
/
Pest Control, Biological
/
Culex
/
Larva
/
Animals
Language:
English
Year:
1991
Type:
Article
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