EFFECT OF INFESTATION WITH TETRANYCHUS ARABICUS (ATTIAH) AND PESTICIDAL TREATMENT ON DATURA PLANT.

Document Type : Original Article

Authors

Plant Protection Research Institute, Agricultural Research Centre, Dokki, Giza, Egypt.

Abstract

The effect of some tested acaricides (Tedifol, Kelthane and Pero-pal) on Tetranychus arabicus Attiah infesting Datura tatufa•plant inidcat­ed that Tedifol was very effective against the moving stages of the mite either in early, medium or late infestations followed by Kelthane and Per-opal The effect of infestation and the three acaricidal treatments on the vegetative growth of Datura (plant height, number of branches / plant, number of leaves/plant, the leaf area, fresh weight, dry weight, chlorophyll A&B and alkaloid content), showed that all these criteria in­creased regularly by decreasing infestation Reduction of such criteria was more pronounced in early infestation than in medium or late infesta­tions.