A pesticidal composition in the form of a dispersion of aqueous polymer particles in water solubility comprise at least one insecticidal organic active substances 5g / l or less at 25 ℃ / 1013mbar, the present invention has an average particle size of the polymer is 300nm or less as measured by dynamic light scattering, it is intended that the polymer particles containing the insecticidal active substance one has a positive surface charge at least, an aqueous dispersion of the active substance-containing polymer particles, ethylenically non- may be obtained by free-radical aqueous emulsion polymerization, (including in dissolved form insecticidal active substance at least one ethylenically unsaturated monomers M in this case) on insecticidal compositions unsaturated monomer composition M. Lignocellulose-containing material in the aqueous pesticidal composition of the present invention, the attack from the infected pests, used for the protection of wood is also specifically disclosed. None [Selection Figure]本発明は水中溶解度が25℃/1013mbarで5g/l以下の殺虫性有機活性物質を少なくとも1種含んでなる水性ポリマー微粒子の分散液の形態の殺虫組成物であって、ポリマーの平均粒子サイズが動的光散乱によって測定して300nm以下であり、少なくとも1種の殺虫活性物質を含むポリマー粒子が正の表面電荷を持つものであり、該活性物質含有ポリマー粒子の水性分散液が、エチレン性不飽和モノマー組成物M(ここでエチレン性不飽和モノマーMは少なくとも1種の殺虫活性物質を溶解した形態で含んでいる)のラジカル水性エマルジョン重合によって取得し得る、殺虫組成物に関する。本発明の水性殺虫組成物の、感染性有害生物の攻撃からのリグノセルロース含有材料、特に木質の保護のための使用も開示される。【選択図】 なし
