FIELD: chemistry.SUBSTANCE: invention relates to agriculture Pesticidal composition contains: organophosphoric pesticide and polymer, which forms capsule wall Capsule at least partly encapsulates organophosphoric pesticide, forming microcapsule, where wall has average thickness from approximately 5 nm to approximately 25 nm said microcapsule has average diameter in the range from approximately 2 mcm to approximately 6 mcm Term "approximately" supposes plus or minus 10% of the given value Organophosphoric pesticide is selected from the group, consisting of acephate, azinphos-methyl, chlorfenvinphos, clorethoxyphos, chlorpyriphos-methyl, diazinon, dimethoate, disulfoton, ethoprofos, fenitrothion, fenthion, fenamiphos, fosthiazate, malathion, methamidophos, methidathion, omethoate, oxydemethon-methyl, parathion, parathion-methyl, phorate, phosmet, profenofos and trichlorfon Wall is formed by interphase polycondensation of at least one poorly-soluble monomer, selected from the group, consisting of diisocyanates, polyisocyanates, chloroanhydrides of dibasic acids, chloroanhydrides of polybasic acids, sulphonyl chlorides and chloroformiates and at least one water-soluble monomer, selected from the group, consisting of: diamines, polyamines, water-soluble diols and water-soluble polyols Said composition is used to regulate the number of insects.EFFECT: invention makes it possible to increase activity and reduce toxicity of composition.16 cl, 14 tbl, 2 ex, 2 dwgИзобретение относится к сельскому хозяйству. Пестицидная композиция содержит:фосфорорганический пестицид и полимер, образующий стенку капсулы. Капсула по меньшей мере частично инкапсулирует фосфорорганический пестицид, образуя микрокапсулу, где стенка имеет среднюю толщину от приблизительно 5 нм до приблизительно 25 нм. Указанная микрокапсула имеет средний диаметр в диапазоне от приблизительно 2 мкм до приблизительно 6 мкм. Термин «приблизительно» подразумевает плюс или минус 10% от указанного значения. Фосфорорган
