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乌鲁木齐郊区冬白菜、萝卜等十字花科蔬菜,近年来严重的受着蝇蛆的为害,受害严重者整株死亡,轻者根部及叶球基部蛆道满布,不仅产量减低,品质变坏,且大大降低了经济价值,同时又给软腐细菌打开了入侵的门户,以致我垦区猛进农场1957年冬白菜减产达34.5％,个别田块一无收成。 萝卜蝇的发生规律: 根据田间饲育、诱集以及观察记载:萝卜蝇发生一代,以蛹在土壤中越冬,7月下旬末(7月29日饲育池首次得到羽化,虫二头)开始羽化,羽化盛期为8月下旬(羽化高峯为8月21日以後),9月中旬为其末期(9月13日为害最後一次得到羽化成蝇)田间最早於8月16日发现个别卵,产卵盛期为9月上旬,末期为9月下旬,8月22日最早发现刚孵化之个别小蛆,9月3日田间最早发现蛆害,为害盛期为9月中旬末下旬初,末期为10月中旬,10月2日发现个别的新蛹,10月下旬为化蛹盛期(化蛹率为75.5％),新蛹当年再不羽化,直至次年7月下旬才羽化。
Urumqi suburbs of winter cabbage, radish and other cruciferous vegetables, in recent years seriously affected by fly maggot damage, severe damage to the whole plant death, light root and lobular base maggot Road, not only reduced production, quality deterioration, And greatly reduced the economic value. At the same time, it opened the door to invasion of soft-rot bacteria. As a result, the output of winter cabbage in our reclamation area was reduced by 34.5% in 1957 and no harvest was obtained on individual plots. The occurrence of radish flies: According to the field breeding, trapping and observation records: generation of radish fly to pupa in the soil overwintering late in July (July 29 breeding pool for the first time to get feather, insect two) began to emerge, The eclosion peak was in late August (the peak of eclosion was August 21), and in mid-September, the individual eggs and spawns were found as early as August 16 in the late September (the last feather-forming fly was harmed on September 13) The peak period of early September, the end of late September, August 22 found the first hatch of the individual small maggots, September 3 the earliest found maggots in the field, the damaging period of mid-late September late, the end of 10 In mid-month, on October 2, a few new pupae were found. In late October, the pupation rate (pupation rate was 75.5%) was no longer affected by the new pupal year and did not emerge until late July of the following year.