The effectiveness of the entomopathogenic fungi beauveria bassiana on the adult female of Tetranychus urticae
Anber, H., Ahmed, F., El-Fakhary, I., Kishk, E. (2001). The effectiveness of the entomopathogenic fungi beauveria bassiana on the adult female of Tetranychus urticae. EKB Journal Management System, 9(2), 71-92. doi: 10.21608/jpces.2001.460080
Helmy A. I. Anber; F. A. M. Ahmed; I. I. El-Fakhary; El-Sayed A. A. Kishk. "The effectiveness of the entomopathogenic fungi beauveria bassiana on the adult female of Tetranychus urticae". EKB Journal Management System, 9, 2, 2001, 71-92. doi: 10.21608/jpces.2001.460080
Anber, H., Ahmed, F., El-Fakhary, I., Kishk, E. (2001). 'The effectiveness of the entomopathogenic fungi beauveria bassiana on the adult female of Tetranychus urticae', EKB Journal Management System, 9(2), pp. 71-92. doi: 10.21608/jpces.2001.460080
Anber, H., Ahmed, F., El-Fakhary, I., Kishk, E. The effectiveness of the entomopathogenic fungi beauveria bassiana on the adult female of Tetranychus urticae. EKB Journal Management System, 2001; 9(2): 71-92. doi: 10.21608/jpces.2001.460080

The effectiveness of the entomopathogenic fungi beauveria bassiana on the adult female of Tetranychus urticae

Journal of Pest Control and Environmental Sciences
Volume 9, Issue 2, August 2001, Pages 71-92    PDF (709.96 K)
Document Type: Original Article
DOI: 10.21608/jpces.2001.460080
Authors
Helmy A. I. Anber* 1; F. A. M. Ahmed2; I. I. El-Fakhary2; El-Sayed A. A. Kishk1
1Department of Plant Protection, Faculty of Agriculture, Tanta
2Department of Pests, Faculty of Agriculture, Kafr El-Sheikh, Tanta University, Egypt.
Abstract
The aim of this study is to evaluate the toxic effect of entomopathogenic fungi Beauveria bassiana on adult females of the two-spotted spider mite Tetranychus urticae under laboratory conditions. Mortality by the commercial formulation of B. bassiana (Biofly) decreased with decreasing concentrations of spore inoculum, the LC50 was 4.12x10^6 spores/ml. The effect of spraying with the biocide Biofly on the mite population, and mortality on green bean plants was increased with increasing spore concentrations. The most effective treatment was the plot sprayed 4 times at the concentration of 2 ml/l (78.55% reduction in the mite population). When biocide Naturalis L and WP (Beauveria bassiana) were sprayed on the moving stages of the mite infesting strawberry, Naturalis L sprayed 3 times at the concentration of 3 ml/l showed reduction percentage of 95.39 in the moving stages of the mite population and the other formulation, Naturalis WP showed 95.98% reduction in the mite population after 15 days from the first application.
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