论文部分内容阅读
近几年,稻瘿蚊在富川县朝东、城北公社部分地区为害相当严重,发生面积逐年扩大,造成该地区中稻和晚稻减产。笔者在朝东公社对稻瘿蚊进行了生活史、生活习性观察研究和封剂防治试验。一、稻瘿蚊的世代历期和各代发生期用两只长2米、宽1.5米、高1.5米的纱窗式养虫笼饲养观察,发现稻瘿蚊在朝东一年发生八代,各代历期(平均)如表1。
In recent years, rice gall midge in Bucheon County, east, north of the commune part of the damage is quite serious, the area has expanded each year, resulting in the region and late rice production. The author of the East commune on the rice gall midge mosquito life history, life habits observation study and sealant control test. First, the age of rice gall midge and the occurrence of each generation with two 2 meters long, 1.5 meters wide, 1.5 meters high screen cage type feeding cage observation and found that rice gall midge occurred in the east eight years, each The lifetime (average) is shown in Table 1.