HOST PLANT EFFECT IN ACARICIDES EFFICIENCY ON TOWSPOTTED MITE

Abstract

Tetranychus urticae Koch is the most important pest on many crops,and causes huge damages in spite of different procedures are used to control it. Because of using the chemical methods, this research aims to clarify the potential difference in the degree of the pesticides influences according to the kind of the host plant. The results were showed by using the leaf- disk methods, which were taken from six hosts of three families, the differences between the daily degrees of influence, and the final averages of the two pesticides efficiency Fenpyroximate and Fenazaquin on the two hosts from Fabaceae (Phaseolus vulgaris L. Vicia faba L.) on two hosts from Cucurbitaceae (Cucumis sativus L., Cucurbita pepo L.) for Fenpyroximate were significant. The differences were significant between daily degrees of influence for the Fenazaquin and Dimethoate on two hosts of Solanaceae, (Solanum melongena L., Lycopersicum esculentum Mill.)and for Fenpyroximate, Pyridaben, and Abamectin on two hosts of Cucurbitaceae. the results were showed the rule the host plant on efficiency of the acaricides.