METHOD FOR CONTROLLING POPULATION NUMBERS OF PEA MOTH (LASPEYRESIA NIGRICANA F.)

摘要

A method for controlling the population numbers of the pea moth (Laspeyresia nigricana F.) includes methods of overall settling of pest egg parasites onto plants. After harvesting pea yield a single procedure of stubble ploughing of 4- in depth and under-winter ploughing 22- in depth are carried out. In the spring period pea sowing is carried out on the fields arranged at a distance of 3- from last-year vetch and pea crops. In addition, at the beginning of emergence of females of the moth single settling of Trichogramma of the species (Trichogramma pintoi Voeg.) is carried out around the perimeter of a field, 12- in width from the edge of the field, in en equivalent of 25-30 thousand of females per . Also in the period of the beginning of mass egg-laying of females of the pea moth two procedures of overall settling of the Trichogramma (T. pintoi.) are carried out, with an interval of 6-7 days, in an equivalent of 50 and 40 thousand of females per , correspondingly.