دراسة سمية المبيدين بروبارجيت و ابامكتين للاكاروسين Tetranychus urticae Koch و Panonychus ulmi Koch (Acari:Tetranychidae) و للمفترس الاكاروسي Amblyseius spp Acari: Phytoseiidae في بساتين التفاح

The relative toxicity of two acaricides: propargite 57 EC and abamectin 1.8 EC to Tetranychus urticae Koch (Acari:Tetranychidae), Panonychus ulmi Koch (Acari: Tetranychidae) and the predatory mite Amblyseius spp (Acari: Phytoseiidae) has been evaluated in apple orchards under field conditions. Propargite has been slightly toxic to the Amblyseius spp and very toxic to T.urticae, and P.ulmi. Abamectin has been moderately toxic to Amblyseius spp and very toxic to T.urticae and P.ulmi. After 25 days of treatment, the same numbers for T.urticae and P.ulmi recur in the three treatments; but the figures for Amblyseius spp have been greater than those in the two acaricides treatments.