变形孢虫是一种微孢子虫,一种单细胞生物,大小只有3—4微米,可寄生在多种鳞翅目幼虫的脂肪体内,但它对棉铃虫毒性很大,棉铃虫幼虫只要吞食1个孢子就可能感染,感染后不能化蛹,最后死亡,如果3龄幼虫吞食较多的孢子,3—6天就可因败血症死亡,因此可用它防治棉铃虫,还可以用来防治飞蝗。由于变形孢虫的孢子在紫外光直接照射下和在常温下很易失活,可混在玉米粉中,在清晨撒在番 Morphologically, Spirulina is a type of microsporidian, a single-celled organism that is only 3-4 microns in size and that is parasitic in the fat body of many lepidopteran larvae, but is highly toxic to the cotton bollworm. Larvae of the cotton bollworm swallow 1 spores may be infected, the pupas can not be infected after infection, the final death, if 3 instar larvae swallow more spores, 3-6 days can die of sepsis, it can be used to control cotton bollworm, but also can be used to control locust . As the spores of the deformed spore worm in the UV light irradiation and at room temperature is very easy to inactivation, can be mixed in the corn flour, sprinkle in the early morning Fan