Caterpillars sun kasance makasudin sarrafa kwari ta hanyar amfani da magungunan kashe qwari, sarrafa kwayoyin halitta da kuma ayyukan agronomic. Yawancin nau'ikan sun zama masu tsayayya da magungunan kashe qwari. An yi amfani da gubobi na kwayoyin cuta kamar waɗanda daga Bacillus thuringiensis waɗanda suka samo asali don shafar gut na Lepidoptera a cikin feshi na ƙwayoyin cuta, don cirewa da kuma ta hanyar haɗa kwayoyin halitta don samar da su a cikin tsire-tsire. Wadannan hanyoyin ana cin nasara da su a kan lokaci ta hanyar ƙwayoyin cuta a cikin ƙwayoyin cuta.
Kwayar cutar Bacillus thuringiensis