STABILIZED INSECTICIDAL COMPOSITION AND PROCESS FOR THE PREPARATION THEREOF

摘要

A microencapsulated insecticidal composition containing isopropyl (2E, 4E)-3,7,11-trimethyl-11-methoxy-2,4-dodecadienoate which comprises 45 - 95% by weight of isopropyl (2E, 4E)-3,7,11-trimethyl-11-methoxy-2,4-dodecadienoate as active ingredient, 1 - 15% by weight of butyl hydroxy toluene and 5 - 40% by weight of activated charcoal, in the form of powdery microcapsules having a grain size of 1 - 300 mu m and coated with a hydroxypropyl methyl cellulose phthalate or cellulose acetate phthalate polymer. The advantage of the microencapsulated insecticidal composition according to the present invention resides in the increased stability.