| 摘要 |
A method for protecting berry-fields from stem phytophages includes directed action on populations of harmful species. In autumn cutting of physiologically inadequate branches and shoots is performed. The latters are stored in bundles in metal barrels covered with dense metal net from above. In addition, at the end of flowering of the berry-fields second cutting of underdeveloped branches with the following burning thereof is carried out. Then, at the beginning of egg-laying of phytophages, two joint settlings of laboratory cultures of entomophages, in particular Trichogramma, namely the species Trichogramma pintoi Voeg., and Coccidencirtus, namely Coccidencirtus pinicola Mert., in a ratio of 1:1 with consumption rates of 30 and 40 females per one bush are carried out with an interval of 7-8 days. Furthermore, in the period of beginning of rebirth of larvae and caterpillars of the phytophages spraying of bushes with aqueous solution of the preparation Aegeryn in an equivalent of 1.5 l/ha is performed. In addition, in the period of appearing larvae and caterpillars of the phytophages elder than the third age two joint settlings on bushes of the entomophages Habrobracon, namely Habrobracon hebetor Say., and Kaltenobachia, namely Kaltenobachia apum Thom, in an equivalent of 20 and 30 females per one bush are carried out with an interval of 10-12 days in a ratio of 1:1. |
