Efficiency of some insecticides based on the active substance Lambda-cihalotrin 50 g/l, in the control of apple tree pests, in the conditions of the Republic of Moldova

Abstract

In the apple plantations of the Republic of Moldova, out of 7 species of tortricidae, the most common species in recent years is the reticulated tortrix which develops two generations a year. The larvae of this species damage blossoming buds, leaves, buds, flowers and fruits. Of the fruit pests, the most dangerous is the codling moth, which also develops two generations a year. The aim of the present studies was to investigate the biological efficacy of two doses of insecticide Samum EC, against apple pests. As a result of chemical treatments in the fourth variant, the number of larvae per 100 buds and per 100 leaf rosettes was 0.35 and 0.49 exemplary, respectively.