FIELD: plant protection. SUBSTANCE: invention relates to biological plant- protection agent that can be used for controlling potato and other agricultural pests. Method consists in reproduction of host insect, infection of host insects with nematodes, collection, and concentration of invasion nematode larvae, followed by preparation of biopreparation. Invasion nematode larvae are extracted from dead insects into liquid nutrient medium. Larvae are further reproduced, stored, transported, and applied in dense peat-based medium containing, as additional nutrition for nematodes, sapropel, chicken dung, trichogram production waste, etc. in various proportions. EFFECT: increased soil fertility. 4 tbl
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Authors
Dates
1999-04-20—Published
1996-05-28—Filed