الفهرس 
IntroductionOnly 14 pages are availabe for public view
 |  | from | 148 |  |  |
| | | from | 148 | | |
Abstract
I. Seasonal abundance of predatory insects on cotton fields free insecticide Paederus alfierii. The population of this predator peaked at 1st week of May and 2nd week of May 1st week of July 2nd week of July, and 2nd week of September in season of 1999. In season of 2000, P. alfierii had three peaks on cotton plants at the 1st, 2nd, and 3rd week of August. Coccinella undecimpunctata The first peak showed during the 2nd week of June, while the second peak occurred during the 3rd week of June, while the third peak occurred during the 1st week of September 1999. In season of 2000, C. undecimpunctata listed the peaks at the 4th week of August, and the 1st week of September. Chrysoperla carnea. The results listed four peaks of this predator occurred during the 2nd week of June, 4th week of June, 2nd week of July, and last peak occurred at the 2nd week of August during season of 1999. Data during season of 2000 indicated that the population of predator listed three peaks occurred at 30th June, 4th August and the last peak occurred during the 2nd week of August. Orius albidipennis. The relative abundance of O. albidipennis showed three peaks during season of 1999. The first peak occurred during 1st week of June, then the second peak occurred during the 2nd week of June, and the third population peak occurred during 3rd week of June.