PROTEÇÃO DE PLANTAS DE BATATA CONTRA MOSCA-MINADORA DE ACORDO COM O MANEJO QUÍMICO

Abstract

The aim of the study was to evaluate the efficiency of chemical management against adults and larvae of Liriomyza huidobrensis (Diptera: Agromyzidae). The treatments were six synthetic insecticides: (T1) spinetoram, (T2) chlorfenapyr, (T3) thiamethoxam+, so named because it is a factory mixture involving thiamethoxam and abamectin, (T4) cyantraniliprole+, also containing abamectin in the formulation, (T5) cyantraniliprole , (T6) indoxacarb and, finally, an absolute control (T7) containing only water. Yellow sticky traps were used to sample the adults and the number of mines was visually recorded for the upper, middle and lower thirds of the potato plants. The insecticides evaluated, regardless of which, showed higher means of suppression for adult flies of L. huidobrensis than for mines. Espinetoram (T1) and chlorfenapyr (T2) significantly reduced the number of mines plant-1 mines. The amount mines plant-1 showed an increasing behavior over time, regardless of the treatments.