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稻象甲Echincocnemus squameus Billberg,又名水稻象鼻虫,属鞘翅目,象虫科。该虫以成虫和幼虫为害水稻,成虫害叶,幼虫害根,以幼虫为害较重。 历年来,我区水稻秧苗受该虫为害较轻,均为零星发生,但1989年以来,稻象甲发生区域在扩大,为害亦在加重。据查阅有关病虫情报等资料,1990年稻象甲已在我区的兴安、合浦等38个县(市)发生,占我区总县数的44.2％。其中,早稻秧苗受害株率在30～40％的有永福县;在20～
Echinocnemus squameus Billberg, also known as rice weevil, is a coleoptera, like insects Division. The insects to adults and larvae damage rice, adult leaves, larvae root damage to larvae heavier. Over the years, the rice seedlings in our district have been less susceptible to the insects and sporadic occurrence. However, since 1989, the occurrence of rice weevil has been expanding and the harm has also been aggravating. According to information on pest and disease information, in 1990, rice weevil occurred in 38 counties (cities) such as Xing’an and Hepu in our district, accounting for 44.2% of the total counties in our region. Among them, the early rice seedling plant damage rate of 30 to 40% Yongfu County; in 20 ~