Studies on the Bacillus sphaericus larvicidal activity against malarial vector species in Amazonia
Mem. Inst. Oswaldo Cruz
;
93(4): 441-4, July-Aug. 1998. tab, graf
Article
in English
| LILACS
| ID: lil-213319
RESUMO
In this work, bioassays were carried out in laboratory conditions (average temperature 26 ñ 2ºC) to test ten strains of Bacillus sphaericus, isolated from Brazilian soils third instar larvae from anopheline species recorded as malaria vectors in Amazonian - Anopheles nuneztovari and An. darlingi. With the former mosquito, three strains - S 2', S 20 and S 46 showed relative activity, in 24 and 48 hr exposure to the B. spahericus strains. With the latter only the S 20 were effective in the 48 hr reading. The studied strains that showed the most adequate response in the Amazonian region were S 2 and S 20 showing broader and more efficient results. Therefore, S2 was the most effective when the 24 and 48 hr reading were considered, because it showed the greatest relative activity values.
Full text:
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Index:
LILACS (Americas)
Main subject:
Bacillus
/
Larva
/
Anopheles
Limits:
Animals
Language:
English
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
Tropical Medicine
/
Parasitology
Year:
1998
Type:
Article
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