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七十年代中期以来,稻黑摇蚊(Chiro-nomus sp.)成为库尔勒地区水稻的主要害虫.1976—1985年,我们采用相关回归分析法,对稻黑摇蚊的发生进行测报.由于测报准确,防治有力,近十年来,此虫被控制在经济危害水平之下,水稻苗期受害率仅5%左右,保苗率提高10—15%.调查与研究表明,库尔勒垦区稻黑摇蚊一年发生3—4代,世代重叠,以成虫和幼虫在苜蓿地和排水渠中越冬,翌春4—5月第一代和部分第二代幼虫开始为害水稻幼芽和幼苗,造成烂种、死芽、飘秧和缺苗.稻黑摇蚊种群数量随季节而消长,一般春季发生数量最大,秋季次之,夏季最小,
Since the mid-1970s, Chiro-nomus sp. Has become a major pest of rice in the Korla region. From 1976 to 1985, we used a correlation regression analysis to measure the occurrence of Chilo suppressalis , The control is strong, the insect has been controlled under the economic hazard level in the past ten years, the damage rate of rice in seedling stage is only about 5% and the seedling raising rate is increased by 10-15% .Research and research show that, Generations 3-4 generations, generations overlap, with adults and larvae in the alfalfa fields and drains wintering, the next spring from April to May the first generation and some second-generation larvae began to damage rice seedlings and seedlings, causing rotten, dead Buds, floating seedlings and lack of seedlings.The population of Chironomus japonicus population will decrease with the seasons, and the population will be the largest in spring, the second in autumn and the smallest in summer,