EFFECT OF NANO-ABAMECTIN IN COMBATING THE TWO-SPOTTED SPIDER MITE TETRANYCHUS URTICAE KOCH (ACARI: TETRANYCHIDAE) UNDER LABORATORY CONDITIONS

Abstract

The lethal dose for 50% of the mite community was for abamectin and nanoparticles 100 and 24.5 respectively. As for the concentrations of abamectin used, it was from 20 to 1000 mg/liter, and the death rate was from 11 to 85%. While the concentrations used for nanoparticles was from 10 to 250 mg/L, and the mortality from 13 to 96%. Toxicity index value of nano-abamectin was 25 times compared to the traditional abamectin pesticide. The lethal dose for 50% of the mite community was for abamectin and nanoparticles 812.8 and 228.6 mg/L, respectively. The concentrations of abamectin used was from 40 to 1000 mg/liter, and the death rate from 00.63 to 46.63 %. While the used concentrations for nanoparticles was from 10 to 250 mg/L, and the mortality from 5.00 to 67.7 %. Depending on the toxicity index of the pesticide, the nano-abamectin solution was the most toxic to the egg stage of the mite, where the toxicity index value of nano-abamectin particles was 28 times compared to the traditional abamectin pesticide used