Indoor Toxicity Testing of 15 Pesticides and Acaricides to Tetranychus piercei McGregor

Fifteen insecticides and acaricides were tested in terms of toxicity by means of slide glass immersion to select insecticides and acaricides for control of the Tetranychus piercei McGrego.The results showed that Abamectin had the highest toxicity to the female T.piercei,with LC50 value being 0.005 5 mg/L,followed by rotenote,and the imidacloprid had the lowest toxicity,with LC50 value being 113.101 4 mg/L.The toxicity of the fifteen kinds of tested insecticides and acaricides to the T.piercei was as follows in the order from highest to lowest:abamectin rotenote fenpyroximate pyridaben chlorpyrifos phoxim Highchlorobenzene bifenthrin cyhalothrin spirodiclofen fenpropathrin profenofos ddvpropargiteimidaclop-rid.