Evaluation of entomopathogenic fungus Verticillium lecanii (Zimmermann) Vieges and the predator Chrysoperla carnea (Stephens) against cowpea aphid, Aphis craccivora (Koch) on faba bean in EGYPT | ||||
| Egyptian Academic Journal of Biological Sciences. A, Entomology | ||||
| Article 20, Volume 1, Issue 2, December 2008, Page 211-216 PDF (150.22 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/eajbsa.2008.15753 | ||||
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| Authors | ||||
| Hany A. S. Abd El-Gawad; Atef M.M. Sayed | ||||
| Biological Control Research Dept., Plant Protection Research Institute, A.R.C., Dokki, Giza, Egypt | ||||
| Abstract | ||||
| Three tested treatments of the entomopathogenic fungus Verticillium lecanii (Zimmermann) Vieges, the predator Chrysoperla carnea (Stephens) and V. lecanii followed by release of C. carnea in faba bean field for controlling cowpea aphid, Aphis craccivora (Koch) compared with control were conducted. The first treatment wasV. lecanii repeated 4 times at 15-days intervals at the rate of 108 spores/ml. The second was C. carnea at the same intervals at the rate of 12,000 predator [larvae (L2)]/feddan/releases.The third was V. lecanii applied 2 times at 15-days intervals at the same rate followed by release of C. carnea 2 times at 15-days intervals at the same rate. Treatments were conducted during 2006-2007 and 2007-2008 at a location in Ismailia Governorate. These treatments indicated the potential use of these treatments to control A. craccivora on faba bean. Reduction in A. craccivora population and subsequent yields were significant between treatments. Highest reduction and yield gain was observed when fungus V. lecanii was applied | ||||
| Keywords | ||||
| entomopathogenic; Verticillium lecanii; Chrysoperla carnea; Aphis craccivora | ||||
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