FIELD: pest control. SUBSTANCE: pest place is treated with aqueous dispersion of solid preparation containing pyrethroid insecticide (cipermetrin, deltametrin, ciflutrin, esfenvalerate) and more than 50% of polyvinylpyrrolidone. Concentrate can be prepared by extruding pyrethroid mixture or evaporating solution of polyvinylpyrrolidone and insecticide in suitable solvent. EFFECT: increased activity of pyrethroids with respect plant louse and safety of preparation. 7 cl, 4 tbl, 8 ex
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