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稻象虫(Echinocnemus sguameus Billberg,亦称稻象甲)的成虫和幼虫均为害水稻,成虫害叶,幼虫害根,尤以幼虫为害最烈.成虫还咬食小麦、玉米和油菜.稻象虫过去发生少,易为人们所忽视,稻株受害征状常被误认为是缺肥或赤枯病所致.但近年来,该虫在佛山地区有所发展,1979年发生面积近60万亩.为此,我们对稻象虫的发生规律、生活习性和防治措施进行了观察研究.(一)形态特征成虫:体长5-5.5毫米(不计喙管),暗褐色至黑褐色.体表披灰褐色鳞片,管状喙细长.触角黑色,末端膨大.每一翅鞘具10条纵沟,在后部(约全长的2/3)接近中缝处
The adults and larvae of Echinocnemus sguameus Billberg are both harmful to rice and adult pests, especially to larvae. The adults also bite on wheat, corn and rape. Less happened in the past, easy for people to ignore the symptoms of rice plant damage often mistaken for lack of or caused by the dead leaf.But in recent years, the insects in Foshan has been developed in 1979, an area of nearly 60 acres For this reason, we observed and studied the law of occurrence, habits and measures of prevention and control of rice worm, as follows: (1) Morphological characteristics Adult: body length 5-5.5 mm (excluding beak tube), dark brown to dark brown Taupe brown scales, tubular beak slender. Feeler black, dilated ends. Each fin sheath with 10 longitudinal groove, in the rear (about full-length 2/3) near the seam