Biomaterial Database

Mosquito host range and field activity of Bacillus sphaericus isolate 2297 (serotype 25). 1988

L A Lacey, and C M Lacey, and B Peacock, and I Thiery

Insects Affecting Man and Animals Research Lab, USDA, ARS, Gainesville, FL 32604.

The 2297 isolate (serotype 25) of Bacillus sphaericus was bioassayed in the laboratory against 8 species of mosquitoes from 3 subfamilies. The most susceptible species were in the genus Culex and the least susceptible were the Aedes spp. and Toxorhynchites r. rutilus. Primary powders of the 2297 and 2362 (serotype 5a5b) isolates were evaluated in the field in natural and simulated habitats against Culex spp. The larvicidal activity of the two isolates was similar, with longer residual activity observed for both preparations in shaded shallow clear water. Larvicidal activity was curtailed in organically enriched and unshaded habitats. Isolate 2297 provided effective control for at least 1 week in an organically enriched habitat and for over 5 weeks in clear water in a shaded habitat when applied at the rate of 0.25 kg/ha.

UI	MeSH Term	Description	Entries
D007814	Larva	Wormlike or grublike stage, following the egg in the life cycle of insects, worms, and other metamorphosing animals.	Maggots,Tadpoles,Larvae,Maggot,Tadpole
D009032	Mosquito Control	The reduction or regulation of the population of mosquitoes through chemical, biological, or other means.	Control, Mosquito
D009033	Culicidae	A family of the order DIPTERA that comprises the mosquitoes. The larval stages are aquatic, and the adults can be recognized by the characteristic WINGS, ANIMAL venation, the scales along the wing veins, and the long proboscis. Many species are of particular medical importance.	Mosquitoes,Mosquitos,Mosquito
D003465	Culex	A genus of mosquitoes (CULICIDAE) commonly found in tropical regions. Species of this genus are vectors for ST. LOUIS ENCEPHALITIS as well as many other diseases of man and domestic and wild animals.	Culices
D000330	Aedes	A genus of mosquitoes (CULICIDAE) frequently found in tropical and subtropical regions. YELLOW FEVER and DENGUE are two of the diseases that can be transmitted by species of this genus.	Aede
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D000852	Anopheles	A genus of mosquitoes (CULICIDAE) that are known vectors of MALARIA.	Anopheles gambiae
D001407	Bacillus	A genus of BACILLACEAE that are spore-forming, rod-shaped cells. Most species are saprophytic soil forms with only a few species being pathogenic.	Bacillus bacterium