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文章概述了发生发现瑞典秆蝇的经过,分析了发展趋势。具体描述了各虫态的特征、历期、习性、发生世代和发生规律。为害对象主要是麦类和玉米,一般减产10％左右,严重年度个别地块毁种重播。已发现的中间寄主有麦类和玉米的自生苗,更多的是以种草为主的禾本科杂草。防治重点在播种和幼苗期,集中消灭在产卵和幼虫初孵阶段。防治措施主要是:清除杂草;适期播种,躲避产卵高峰(春麦早播,冬麦晚播;春、夏玉米晚播);药剂防治主要是拌种和苗期用具有触杀、内吸、熏蒸作用的农药防治。并提出了受害作物的管理措施。
The article outlines the discovery of the Swedish fly flies after the occurrence, analysis of the development trend. Described in detail the characteristics of each insect state, duration, habits, generation and occurrence of law. The main victims are wheat and corn, the general reduction of about 10%, a serious block replay of individual plots. The intermediate host has been found to wheat and corn self-emergence, more grass-based grass weeds. Prevention and control focus on sowing and seedling stage, focused on the elimination of spawning and larval hatchling stage. Prevention and control measures are: to eliminate weeds; sowing time, to avoid the peak of spawning (early spring wheat, winter wheat late sowing; spring, summer corn late sowing); drug control mainly seed dressing and seedling with contact kill, , Fumigation of pesticide control. And put forward the management measures of the damaged crops.