METHOD FOR CONTROLLING NUMBERS AND HARMFULNESS OF SAWFLY POPULATIONS IN AGROCENOSIS OF BERRY-FIELDS

摘要

A method for controlling numbers and harmfulness of sawfly populations in an agrocenosis of berry-fields includes using biological and chemical procedures in the course of vegetation period. At the beginning of mass egg laying of females of sawflies and in 10-12 days double settling of Trichogramma of the species Trichogramma pintoi Voeg. is carried out onto bushes in an equivalent of 30 and 50 females per one bush. In addition in the period of emergence of false larvae of sawflies of not elder than the third age single spraying of plants with an aqueous solution of the preparation Phytoverm is carried out in an equivalent of 0.2 l/ha. Furthermore, at the beginning of migration of larvae for diapausing single spraying of plant residues and soil surface of in row spacings of berry-fields with an aqueous solution of the 2 % preparation Pecylomin is carried out.