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“稻水象甲”是国际公认的最具毁灭性水稻害虫之一。稻水象甲成虫为害稻叶,多在幼嫩叶片上沿脉方向取食叶肉,留下表皮,形成长短不一的细长条白斑,长度一般不超过3厘米,条斑两端呈弧形,为害严重时,全田一片白色。稻水象甲食性复杂,寄主范围非常广泛,包括禾本科、泽泻科、鸭跖草科、莎草科、灯芯草科杂草,是半水生昆虫。成虫在地面枯草上越冬,在我国可以孤雌生殖。成虫平均寿命76天,雌虫寿命更长,可达156天。一、发生特点稻水象甲为害水稻、高粱、玉米、甘蔗、
Rice water weevil is one of the most devastating rice pests internationally recognized. Rice watermelon adult rice damage, mostly in young leaves along the veins fed on the veins, leaving the epidermis, the formation of varying lengths of white strip, usually not more than 3 cm in length, , Serious damage, the whole field a white. Paddy water like armor complex, host a wide range of hosts, including Poaceae, Alisma Branch, Commelina, Cyperaceae, Ophiopogon japonicus, is a semi-aquatic insects. Adult overwintering in the ground subtilis, parthenogenesis in our country. The average life expectancy of adults is 76 days, the female lives longer, up to 156 days. First, the occurrence characteristics Rice water weevil damage rice, sorghum, corn, sugar cane,