论文部分内容阅读
四、摘要1.哈尔滨地区粘虫本年发生两个世代,以第一代发生数量较多,并在6月上、中旬形成发蛾高峰,为害严重。2.粘虫的寄主计有7科20种,小麦、高粱、谷子、玉米等禾本科作物为其嗜食寄主。3.雌雄蛾的比例为1.33:1,盛发期产雌蛾的数量是由多至少地下降,而雄蛾的数量则是由少至多地增加。4.粘虫的发生与其他作物的生育期存在着一定的联系,如第一代成虫发蛾盛期正值柳树扬花、榆钱成熟;且其正个生活史与主要寄主(小麦)的生长发育保持密切的联系。5.设置不同高度糖醋盆诱集成虫的结果,诱蛾量随着高度而有增加,趋势以3尺高度的效果最好。6.1960年调查小麦田内幼虫的虫口密度,平均每米行长有虫1.3～150头,初龄幼虫虫口密度较低,老熟时则较高。7.应用 OKC 机动喷雾器喷洒 E605(拜尔厂)1200倍+6%r 可湿性666,150倍液大面积防治幼虫的结果,杀虫率在85%以上。用手压喷雾器喷洒6%r 可湿性666,150倍液的杀虫率为84.42%,用手摇喷粉器喷6%r666粉器喷粉剂的杀虫率为89.36%。
IV Summary 1. The occurrence of armyworm in Harbin occurred two generations this year, with the first generation occurring more and the peak of hair moths formed in the upper and middle of June, causing serious damage. 2. The hosts of armyworms include 7 families and 20 species of grass-eating crops such as wheat, sorghum, millet and corn. 3. The ratio of male and female moths was 1.33: 1, the number of female moths during the full-blown hair stage decreased at least or more, while the male moths increased from less to most. The emergence of armyworm and other crops have a certain relationship with the growth period, such as the first generation of adult moths at the peak of flowering willow, elm maturity; and its positive life history and the main host (wheat) growth and development Keep in touch. 5. Set the height of sweet and sour pots trap adult results, the amount of lures with the height of the increase, the trend to 3-foot height of the best. 6 1960 survey of wheat field larvae population density, the average per meter length of 1.3 to 150 insects, the first instar larvae population density lower, when mature is higher. 7. Applications OKC mobile sprayer spray E605 (Bayer plant) 1200 times + 6% r Wet 666,150 times the large-scale control of larvae results, insecticidal rate of 85% or more. The insecticidal rate of spraying 6% r wettable 666,150 times liquid by hand pressure sprayer was 84.42%. The insecticidal rate of spraying 6% r666 powder duster with hand duster was 89.36%.