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瓜列当即埃及列当(Orobanche aegy-ptiaca Pers)是为害某些双子叶作物生长的完全寄生性杂草,它普遍分布于新疆南北部瓜区,是我区瓜类生产的主要障碍。据鄯善县农技站今年在一农户5亩甜瓜地调查,列当寄生率高达100％,株瓜寄生列当有的高达10株之多,瓜田近乎毁灭,亩产只有几公斤。 1985年我们在哈密、鄯善等地试验了列当对草甘膦的敏感性,效果极佳、施药在列当出土之后,茎部涂抹。在中等发生田一般施药4—5次,严重田块,因防治次数太多,且是列当成株期防治,对产量挽回意义不
Orobanche aegy-ptiaca Pers is a complete parasitic weed that damages the growth of some dicotyledonous crops. It is widely distributed in the melon areas of northern and southern Xinjiang and is a major obstacle to the production of melons in our district. According to Shanshan County Agricultural Technology Station this year in a mu of civet 5 acres of investigation, when parasitic as high as 100%, Strain parasitic when there are as many as 10 strains, melon fields almost destroyed, only a few kilograms per mu. In 1985, we tested the sensitivity to glyphosate in Hami and Shanshan, and the effect was excellent. After the pesticides were unearthed, the stems were smeared. In the middle of a field general pesticide application 4-5 times, a serious field, because of the prevention and control of the number of too many, and is listed as a prevention and control of the plant, the recovery of production is not meaningful