SURVEY OF PREDATORS ASSOCIATED WITH MAJOR INSECT PESTS ON OKRA PLANTS, IN QALUBIA GOVERNORATE. | ||||
| Journal of Plant Protection and Pathology | ||||
| Article 4, Volume 30, Issue 2, February 2005, Page 1105-1116 PDF (172.54 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jppp.2005.238649 | ||||
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| Authors | ||||
| M. A. M. EIKhawas1; Nesreen E. EL-Mowafy2 | ||||
| 1Biological Control Research Department, Plant Protection Research Institute, A..R.C., Egypt. | ||||
| 2Plant Protection Research Institute, Sakha Agriculture Research Center, Kafr El- Sheikh. | ||||
| Abstract | ||||
| This study was conducted to survey the major piercing sucking insect pests and their associated predators during summer crop of okra plants in the two successive seasons, 2003 and 2004, in Qalubla Governorate. The maximum total numbers of Aphis gossypil individuals were recorded during the last and third week of August, 2003 and 2004, respectively. The maximum numbers of Bemisia tabaci individuals were counted with their maximum numbers ¡n the second week of August, 2003 and 2004. The jassids, Empoasca spp. individuals were peaked in the third week of September, 2003 and in the last week of August, 2004. A. gossypil was the most abundant pest species, followed by B. tabaci and Empoasca spp. Ants and Chiysoperla camea were the most abundant predators, associated with the major insect pests attacking okra plants. Generally, the present study showed that, the natural role of the biocontrol agents in okra fields must be enhanced and developed. Also, it revealed that, the three predators; C. camea, Scymnus spp. and Coccinella undecimpunctata, could have a promising role when planning Integrated Pest Management (1.P.M.) strategies, with other safe methods, to protect the surrounding environment from pollution. | ||||
| Keywords | ||||
| Okra; Pests; Predators; Chrysoperla camea; Population dynamics | ||||
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