Microparticles comprising (a) a water-soiuble solid organothiophosphate, (b) one or more odor-absorbing components, and (c) one or more odor-masking components are disclosed, as well as a method of making the microparticles, and odor-reduced insecticidal formulations comprising the microparticles. The microparticles and formulations can also contain other crop protection agents. Odor-reduced insecticidal formulations comprising (a) a pyrethroid, (b) an organothiophosphate, (c) one or more odor-absorbing components, and (d) one or more odor-masking components are also disclosed. Additionally disclosed is a method of reducing the odor of an organothiophosphate-containing formulation by incorporating one or more odor-absorbing components and one or more odor-masking components.本發明揭示包含(a)水溶性固體有機硫代磷酸鹽、(b)一或多種吸收臭味之組分、及(c)一或多種遮蔽臭味之組分之微粒,以及一種製造該等微粒之方法,及包含該等微粒之減少臭味之殺昆蟲調配物。該等微粒及調配物亦可包含其他作物保護劑。亦揭示減少臭味之殺昆蟲調配物,其包含(a)擬除蟲菊酯、(b)有機硫代磷酸鹽、(c)一或多種吸收臭味之組分、及(d)一或多種遮蔽臭味之組分。另揭示一種藉由併入一或多種吸收臭味之組分及一或多種遮蔽臭味之組分來減少含有機硫代磷酸鹽調配物之臭味之方法。