Abotaleb, A., Ahmed, S., Hamed, R., Asran, A., ELSawaf, B. (2016). Effectiveness of Beauveria bassiana applied alone or incombination with diatomaceous earth as protectants of wheat grains against Rhyzopertha dominica (F.) (Coleoptera: Bostrychidae). test, 8(1), 65-72. doi: 10.21608/eajbsf.2016.17134
Abeer O. Abotaleb; Salwa M. S. Ahmed; Ragaa K. A. Hamed; AbdAlmawgod A. Asran; Bahira, M. ELSawaf. "Effectiveness of Beauveria bassiana applied alone or incombination with diatomaceous earth as protectants of wheat grains against Rhyzopertha dominica (F.) (Coleoptera: Bostrychidae)". test, 8, 1, 2016, 65-72. doi: 10.21608/eajbsf.2016.17134
Abotaleb, A., Ahmed, S., Hamed, R., Asran, A., ELSawaf, B. (2016). 'Effectiveness of Beauveria bassiana applied alone or incombination with diatomaceous earth as protectants of wheat grains against Rhyzopertha dominica (F.) (Coleoptera: Bostrychidae)', test, 8(1), pp. 65-72. doi: 10.21608/eajbsf.2016.17134
Abotaleb, A., Ahmed, S., Hamed, R., Asran, A., ELSawaf, B. Effectiveness of Beauveria bassiana applied alone or incombination with diatomaceous earth as protectants of wheat grains against Rhyzopertha dominica (F.) (Coleoptera: Bostrychidae). test, 2016; 8(1): 65-72. doi: 10.21608/eajbsf.2016.17134

Effectiveness of Beauveria bassiana applied alone or incombination with diatomaceous earth as protectants of wheat grains against Rhyzopertha dominica (F.) (Coleoptera: Bostrychidae)

Egyptian Academic Journal of Biological Sciences, F. Toxicology & Pest Control
Article 7, Volume 8, Issue 1, June 2016, Pages 65-72    PDF (411.03 K)
Document Type: Original Article
DOI: 10.21608/eajbsf.2016.17134
Authors
Abeer O. Abotaleb1; Salwa M. S. Ahmed1; Ragaa K. A. Hamed1; AbdAlmawgod A. Asran1; Bahira, M. ELSawaf2
1Plant Protection Research Institute, Stored Products Department, Agriculture Research Center
2Faculty of science, Entomology Department, Ain S hams University
Abstract
Laboratory bioassays were conducted to assess the insecticidal efficacy of the formulated fungi, Beauveria bassiana used alone or in combination with a formulated diatomaceous earth (DE) against adults of Rhyzopertha dominica on wheat grains. Mortality increased with increasing powder concentrations and DE was more effective than B. bassiana. Exposure of R. dominica adults to wheat grains treated with mixtures of B. bassiana and DE resulted in higher mortality values than each powder alone at various concentrations. When eggs were treated with LC50 of each powder alone a significant decrease in adult emergence was achieved. The LC95of the two powders caused complete inhibition of adult emergence. The mixture of the two powders caused complete inhibition in adults emergence except in case of LC25 mixtures which caused about 80% reduction in progeny production. In most cases, B. bassiana and DE treatments did not affect germination of wheat grains as indicated by germination tests.
Keywords
Beauveria bassiana; Rhyzopertha dominica; Wheat grains
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