Arthropod community in small rice fields associated with different planting methods in suwon and icheon

araneae arrozales arthropoda biocenose biocenosis biocoenosis direct sowing encuestas enemigos naturales ennemi naturel korea republic laodelphax natural enemies nephotettix cincticeps oryza sativa pests of plants plagas de plantas ravageur des plantes repiquage rice fields semis direct siembra directa surveys transplanting trasplante