Stabilized biological pesticides comprising Chromobacterium species, filtrate, supernatant, extract or pesticidally active substance derived therefrom with pesticidal activity having improved shelf life due to maintenance of physical uniformity and longer insecticide activity after use due to higher resistance to degradation when exposed to sunlight are disclosed.此具有穩定性的生物殺蟲劑含有色桿菌(Chromobacterium)的濾液、上清液、提取物或殺蟲活性成份，可藉由日光曝曬後，提供其抗降解的能力而維持物理均勻性來改善產品的保質期。
