一、发生为害 1988年我国确认在唐山市一带发生了稻象甲-1,面积近60万亩,密度也较大。主要是孤雌生殖型,以成虫越冬。越冬成虫复苏后,首先取食禾本科或莎草科杂草,而后进入秧田或本田进行为害。成虫一般顺叶脉啃食,造成0.1cm宽,0.5—3cm长的透明条痕,条痕相接引起叶片干枯。成虫最喜取 First, the occurrence of harm In 1988, China confirmed the occurrence of rice in the vicinity of Tangshan A -1, an area of ​​nearly 600000 acres, the density is also larger. Mainly parthenogenesis to adult wintering. After the recovery of overwintering adults, the first to eat grass or sedge weeds, and then into the seedling or Honda damage. Adult generally grafted along the veins, resulting in 0.1cm wide, 0.5-3cm long transparent streaks, streaks caused by leaves dry. Worm favorite