| 摘要 |
A method for inducing the spanandria process of in natural populations of synovigenic parasitary insects includes the directional effect on females of entomophages. In the joint agrolandscape complex an ecological buffer zone is formed in the composition of shrubby nectariferous plants, where such species as the false indigo, alder buckthorn, European barberry, blueberry predominate, and grassy nectariferous plants: brown scale centaury, purple loosestrife, meadow sage, garden sage, day-nettle and fireweed. Two thirds of the entire reserve of the plants is formed at the edges of agrocoenoses, the rest as a constituent part of agrocenoses. Caterpillars of elder ages of the flour moth in an equivalent of 8-10 caterpillars per 20 running meters of area are exposed on said plants. In 3-4 days after settling the caterpillars of the flour moth settling of the ectoparasite Habrobracon of the species Habrobracon hebetor Say. onto the plants is carried out in an equivalent of 13-15 imagoes per 20 running meters of the agrolandscape. |
