摘要
水稻潜叶蝇是吉林省水稻产区的主要害虫,在一些地区几乎每年危害。以成虫越冬,以第一代幼虫对刚插完秧的水稻苗期危害最重。越冬雌虫的产卵高峰期从5月末到6月初,幼虫大量发生是6月上旬危害稻苗叶子。 1985年在田间小区比较了10种农药防治效果,只有用拌磷颗粒剂防治效果最好。1986年在九台、东丰、海龙、磐石、敦化等地水稻产区进行了大面积颗粒剂田间防治试验,所有试验都证明5％甲拌磷颗粒剂防治效果好,每公顷用量是3.75至7.5公斤,直接施在水里,时间是6月1日至5日,这时水稻田水必须保持一星期,降低虫口密度95％以上。我们推荐这种方法做为防治水稻潜叶蝇的推广措施。
Rice leaf miner, Hydrellia griseola fallen, is a major pest of rice production region in Jilin province. Damage occurs almost every year in some locations. It passed in the adult stage in the winter. The larvae of Ist-brood caused most injury to transplanted rice seedlings, Peak egg deposited by overwintered female flies generally occurred from the late May to early June, and the larvae were most numerous in early June and attacked the rice seedling leaves.In 1985, we compared the effect of ten insecticides against rice leaf miner in field plots. Only granular phorate provided excellent effect. In 1986. largescale field tests with granular phorate were conducted in Yongji Jiutai, Tongfeng, Hailong, Panshe, and Tonghua. All test results demonstrated that the most effective insectide was phorate as 5% granular at rate 3.75 to 7.5okg/ha spread immediately into water during 1 to 5 June, Keep water of rice field must steady for a week. It reduced larvae population exceeding 95%. It is recommened as a measure in the rice pest management program.
出处
《东北农业科学》
1987年第2期17-23,共7页
Journal of Northeast Agricultural Sciences
