IMPACT OF PESTICIDES USE ON TRUE SPIDER POPULATION IN TOMATO FARMS IN FAYOUM GOVERNORATE | ||||
| Fayoum Journal of Agricultural Research and Development | ||||
| Article 11, Volume 20, Issue 1, January 2006, Page 148-154 PDF (341.6 K) | ||||
| Document Type: Research articles. | ||||
| DOI: 10.21608/fjard.2006.197573 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| Ashraf, A. R. Rahil | ||||
| Plant Protection Dept. Fac. of Agric. Fayoum Univ. Egypt. | ||||
| Abstract | ||||
| Eighteen species of spiders in six families were collected from tomato fields in Fayoum governorate. Population of these spiders reached up to 25 indiv./10 plants at the end of season (Nov.) in plots with no chemical treatment. The correlation between spiders population and Nesidicoris tenuis Reut (Hemiptera) the main prey in untreated plots was significantly negative. Admiral (pyriproxyfen), Actacron (profenofos) and Pilarmate (methomyl), the three pesticides recommended for use against tomato pests caused highly significant reduction in spider populations. Pilarmate was the highest toxic to spiders followed by Actacron and the least was Admiral with reduction percentages of 85, 83 and 70%, respectively. | ||||
| Keywords | ||||
| True spider; tomato; Nesidicoris tenuis; control; Admiral; Actacron; Pilarmate | ||||
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