Effect of temperature on the susceptibility of Culiseta longiareolata (Macquart) (Dipt., Culicidae) to two standard strains of biocontrol bacteria |
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| Authors: | A Katbeh-Bader H Khyami-Horani Z H Mohsen |
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| Institution: | Department of Plant Protection, University of Jordan;;Department of, Biological Sciences, University of Jordan and;Arab Pest Control Center, Amman, Jordan |
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| Abstract: | 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. |
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