Abstract
Guading the common cutworm by agricultural chemicals brings bad effects.So,we used yellow fluorescent lamp and good results.We made two areas, one is yellow fluorescent lamp area.The other is normal area.We checked larvae and damaged plants.Larvae was small in yellow fluorescent lamp area less fifith than normal area.Damaged plants was less 10% in yellow fluorescent area after sprinkling agiriculture chemicals,Natural area's damage plants arised 77% at maximum.We couldn't stop using agricultural chemicals.But We could reduce it.