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近十年来,诸暨市病虫综合防治工作取得显著成效,防治面积260.3万亩次,获经济效益5404.1万元。蜘蛛、绒茧蜂等主要天敌,以及蝽、蛙等有益生物明显回升。蛛虱比:综防镇1:7,非综防镇1:10,天敌的控害作用逐年增强。1989年省综防领导小级测定,综防区的糙米中甲胺磷残留量未检出。其它农药亦下降到规定标准以下。诸暨市位于浙江中部,传统的耕作制度是大小麦——早稻——晚稻和绿肥——早稻——晚稻。年粮食播种面积143万亩,常年总产量50万吨左右,年提供商品粮1亿多公斤。抓好病虫防治工作是实现粮食稳产,高产的关键之一。现将诸暨市连作稻主要病虫发生规律及综合防治对策简报如下:一、病虫发生规律诸暨市由于耕作制度较复
In the past ten years, Zhuji comprehensive prevention and control of pests and diseases achieved remarkable results, control area of 2603000 mu times, economic benefits of 54041000 yuan. Spiders, velvet bee and other major natural enemies, as well as bugs, frogs and other beneficial organisms significantly rebounded. Nilaparvata lugens ratio: comprehensive prevention of the town of 1: 7, non-comprehensive prevention of the town 1:10, control of natural enemies increased year by year. In 1989, the provincial level of prevention and control of small-scale determination, comprehensive prevention area of brown rice Methamidophos residues were not detected. Other pesticides also dropped below the required standard. Zhuji City is located in central Zhejiang, the traditional farming system is big wheat - early rice - late rice and green manure - early rice - late rice. The annual sown area of grain is 1.43 million mu, with a perennial total output of about 500,000 tons. It will provide more than 100 million kilograms of commercial grain. Doing a good job in pest control is one of the keys to achieving stable grain yield and high yield. Brief introduction of the main pests and diseases of Lianzao Rice in Zhuji City and its comprehensive prevention and control measures are as follows: I. Rules of Occurrence of Pests and Diseases Due to the relatively tillage system in Zhuji,