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调整水稻播栽期,避过一代三化螟蛾、卵高峰期,对压低全年三化螟发生基数,减轻危害效果显著。1995年以后三化螟全面回升,虫量逐年积累,已成为水稻生产上一大常发性主要害虫。锡山市植保站在肥床旱育薄膜覆盖技术成功的基础上,1997年开展了肥床旱育技术避一代三化螟蛾、卵高峰试验研究,结果显著,具有推广应用意义。1材料与方法1.1基本情况 试验示范区设在有肥床旱育秧基础的锡山市梅村镇梅新村,面积1385亩。其中1317
Adjusting the sowing date of rice and avoiding the generation of the moths and the peak of the eggs, it is significant to reduce the base number of the stem borer (Chilo suppressalis) and mitigate the harm in the whole year. After the third rice borer fully recovered after 1995, the amount of insects accumulated year by year, has become a major perennial rice on the production of pests. Based on the success of the technology of film-covering dry-land film covering in Xishan City, in 1997, the technology of fertilizing bed and dry-sheltering was avoided to prevent the generation of the moth and the test of egg peak. The result is significant and has the significance of popularization and application. 1 Materials and Methods 1.1 The basic situation Experimental demonstration area is located in a bed with dry bed Yangzi Meishan Mei Village, an area of 1385 acres. Among them 1317