| 摘要 |
A method for protecting berry fields from lepidopterous pests includes determining the species composition of the pests and applying exterminatory biological agents. In addition, on berry fields in the autumn period settling of Trichogramma (Trichogramma pintoi Voeg.) is carried out on the basis of 20-30 females per one bush, and in spring and at the beginning of summer, at the beginning and in the period of mass egg-laying double settling of Trichogramma (Trichogramma dendrolimi Mats.) is carried out on the basis of 35-45 females per one bush. In the period of expansion of caterpillars of the third age of the lepidopterous pests and in the period of expansion of caterpillars of elder ages double settling the ectoparasite Habrobracon hebetor Say. is carried out on the basis of 5-6 females per one bush. |
