论文部分内容阅读
黑龙江省是我国大豆的主要产区。几年来,由于栽培技术的改进,大豆产量很大提高,但由于苗期虫害,常常缺苗断垅或生育不良,使大豆生产受到很大影响。大豆的苗期害虫,种类很多,普遍发生严重为害的有蛴螬、黑绒金龟(虫甲)、象鼻虫、地老虎、金针虫、二条姬叶虫等。蛴螬在全省各地均有分布,其中以哈尔滨地区及东部山区各县被害最重。如宾县交界管村,1954年种614公顷,因蛴螬为害缺苗40％以上的191公顷,占播种面积的31％;密山县实边村友联社,因蛴螬为害颗粒不收的占18％。黑绒金龟(虫甲)全省各地都有发生,而以南部各县发生最多,主要以成虫加害大豆
Heilongjiang Province is the main producing area of China’s soybean. In recent years, due to the improvement of cultivation techniques, the yield of soybean has greatly increased. However, the soybean production is greatly affected due to seedling pests, often lack of seedlings or poor fertility. Soybean seedling pests, many different types of common occurrence of serious damage are lynx, black velvet tortoise (pest), weevil, to tiger, pinworm, two Ji Ye insects and so on.蛴 螬 are distributed throughout the province, of which Harbin County and the eastern mountain counties hardest hit. Rubian County, the junction of the village, 1954, 614 hectares, due to lack of seedlings more than 40% of the 191 hectares, accounting for 31% of the sown area; Mishan Buxian Solidarity Village, 18%. Black velvet tortoises (insects) occur all over the province, while most occur in the southern counties, mainly adult damage to soybeans