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Effect of temperature on the susceptibility of Culiseta longiareolata (Macquart) (Dipt., Culicidae) to two standard strains of biocontrol bacteria
Author(s) -
KatbehBader A.,
KhyamiHorani H.,
Mohsen Z. H.
Publication year - 1999
Publication title -
journal of applied entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.795
H-Index - 60
eISSN - 1439-0418
pISSN - 0931-2048
DOI - 10.1046/j.1439-0418.1999.00414.x
Subject(s) - biology , bacillus sphaericus , bacillus thuringiensis , instar , larva , biological pest control , bacteria , veterinary medicine , microbiology and biotechnology , bacillales , toxicology , ecology , medicine , genetics , bacillus subtilis
The susceptibility of fourth instar larvae of Culiseta longiareolata (Macq.) to two standard strains of biocontrol bacteria was investigated under laboratory conditions. Larvae were found to be more susceptible to Bacillus sphaericus (Bs‐IPS88) than to Bacillus thuringiensis H14 (Bti‐IPS82) at 25 ± 1°C at concentrations ranging from 0.003 to 0.004 ppm at 2 and 3 days post‐treatment. Statistical regression analysis revealed a significant mortality–concentration relationship for the two bacteria. Larval mortality increased significantly as temperature increased from 20 ± 1°C to 28 ± 1°C.