Development of alginate-based slow release formulation of Bacillus sphaericus for controlling Culex quinquefasciatus.
Southeast Asian J Trop Med Public Health
; 1997 Mar; 28(1): 203-7
Article
in En
| IMSEAR
| ID: sea-34231
ABSTRACT
Seven types of formulations were prepared as granules using the larvicidal factor of Bacillus sphaericus and different concentrations of calcium alginate which was used as matrix to immobilize and entrap the active ingredient (ai). All formulations were tested in disused wells against Culex quinquefasciatus at the rate of 15 kg ai per hectare. Among the seven types tested, the type 2 which contained 5% calcium alginate as immobilizing agent, exhibited the maximum larvicidal activity. Persistent control in breeding was noticed for 8 weeks with this formulation type.
Full text:
1
Index:
IMSEAR
Main subject:
Bacillus
/
Humans
/
Drug Carriers
/
Pest Control, Biological
/
Mosquito Control
/
Glucuronic Acid
/
Culex
/
Developing Countries
/
Alginates
/
Hexuronic Acids
Country/Region as subject:
Asia
Language:
En
Journal:
Southeast Asian J Trop Med Public Health
Year:
1997
Type:
Article