METHOD FOR LOWERING NUMBERS OF DIAPAUSING CATERPILLARS OF GARDEN CODLING MOTHS

摘要

A method for lowering the numbers of diapausing caterpillars of garden codling moths including using biological preparations in vegetation period, by means of spraying trees. At the end of summer at the beginning of autumn, in the period of migration of caterpillars of the codling moths to diapausing places, in particular to tree trunks, under plant residues and surface of the soil of near-trunk circles, treatment with a 3.5-4.0 % aqueous solution of the preparation Pecilomin is carried out. In addition, in 8-10 days, in the period of the beginning of mass migration of caterpillars of the codling moths to diapausing places procedures of double settling of imagoes of ectoparasites of Habrobracon, in particular Habrobracon hebetor Say. and Habrobracon erraticus Wesm., onto trees is carried out with an interval of 11-13 days in an equivalent of 20 and 25 imagoes per one tree correspondingly.