PROBLEM TO BE SOLVED: To provide a composition for a disease and insect damage-controlling agent, the composition comprising azadirachtin as a main component, and being inexpensive and excelling in stability and to provide a method of producing the same.SOLUTION: The composition for a disease and insect damage-controlling agent comprises the following. At least one of a main raw material chosen from a group consisting of a seed, a nucleus of neem, and a strained lees, and a submaterial which is obtained by the enzymolysis of cereal by a malted rice enzyme and/or a germination enzyme are mixed, solids in an obtained mixture are crushed and/or mashed, and thereafter the mixture is agitated.COPYRIGHT: (C)2011,JPO&INPIT【課題】アザジラクチンを主成分とする、安価で安定性に優れた、病虫害防除剤用組成物及びその製造方法を提供する。【解決手段】少なくとも、ニームの、種子、仁(核)、及び絞り粕からなる群から選ばれた少なくとも1種の主原料と、麹酵素及び/又は発芽酵素によって穀類を酵素分解させて得られた副原料とを混合し、得られた混合物中の固形物を粉砕及び/又は磨り潰した後攪拌してなることを特徴とする、病虫害防除剤用組成物。【選択図】図1