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河下公社是萍乡市东部一个主要产粮区。水稻主要害虫有二化螟、三化螟、稻纵卷叶螟、黑尾叶蝉、褐飞虱、稻蓟马等6种;主要病害有赤枯病、稻瘟病、纹枯病等3种。防治水稻病虫害五十年代以冬耕三光为主,人工防治为辅;六十年代以药剂防治为主,其他防治措施为辅,对于减轻病虫危害,保证水稻丰收起了重要作用。近年来,随着耕作制度的改革,水稻病虫也在不断变化,在防治上偏重于用药,忽视农业防治措施,显然不能与变化了的情况相适应。因此,如何贯彻“预防为主,综合防治”的植保方针,探索综合防治水稻病虫的经验,十分必要。
River commune is a major grain-producing area east of Pingxiang City. The main pests of rice are Chilo suppressalis, Borer, Cnaphalocrocis medinalis, Nephotettix cincticeps, Nilaparvata lugens, rice thrips and other six kinds; the main diseases are redbush, blast, sheath blight and other three species. Prevention and control of rice pests and diseases in the fifties to winter farming three light, supplemented by artificial prevention and control; sixties drug control, supplemented by other prevention and control measures to reduce pests and diseases to ensure that rice harvest has played an important role. In recent years, with the reform of the farming system, pests and diseases in rice are also constantly changing. In terms of prevention and treatment, emphasis has been placed on the use of medicines and neglect of agricultural prevention and control measures. Obviously, it can not be adapted to changing conditions. Therefore, it is necessary to carry out the policy of plant protection based on “prevention first and comprehensive prevention and control” to explore the experience of comprehensive prevention and control of rice pests and diseases.