稻象甲以成虫危害水稻叶片 ,造成叶片穿孔或折断 ,以幼虫取食水稻嫩根 ,造成植株黄化、僵苗 ,重发田块每年减产 3 0 %左右。现将其发生规律和防治技术介绍如下 :一、发生规律我县地处沿淮 ,稻象甲在我县 1年发生 1代 ,主要以幼虫越冬 ,冬后虫量一般每平方米 8～ 1 1头 ,最高每? Rice weevil to adult insects damage rice leaves, resulting in perforation or break leaves to larvae feeding rice tender roots, resulting in plant yellowing, stiff seedlings, re-field block annual reduction of about 30%. Now the law of its occurrence and prevention and treatment of the technology are as follows: First, the occurrence of law My county is located along the Huaihe River, rice weevil occurred in our county 1 year, mainly larvae wintering winter insects generally per square meter 8 ~ 1 1 head, the highest every?