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搞好水稻病虫防治,首先必须准确掌握发生期、作好预报,抓好防治适期,才能猛攻巧打、经济有效。笔者从事田间病虫监测和综合防治30余年,在长期的实践中,探索到一些规律,即在全年的12个月中,水稻主要病虫的发生、为害、猖獗乃至成灾,在时间上是有规可循的。具体来说,4～9月份25日前后2～3天是水稻主要病虫的关键发生期和防治适期,抓住了这六个月的25日前后数天,全年水稻病虫的测报和防治便可迎刃而解,这就是6.25模式。这个模式不仅在地处北纬28°41′～29°22′、东经113°57′～114°56′、位于赣西北边陲的修水县是适用的,在赣北和赣中地区也是适用的。现将一年中4～9月25日前后水稻主要
To do a good job in the prevention and control of rice pests and diseases, we must first of all accurately grasp the occurrence period, make a good prediction and do a good job in preventing and controlling the right period in order to stormed the game and be cost-effective. The author engaged in field pest monitoring and comprehensive prevention and control of more than 30 years, in the long-term practice, to explore some laws, that is, throughout the year in 12 months, the occurrence of major pests and diseases of rice, damage, rampant and even disaster in time Is a rule-based. Specifically, from April to September on the 25th, 2 to 3 days is the key period of pest and disease control of rice, and grasped the measurement of pests and diseases of rice in the past few days before and after the 6th month And prevention can be solved, this is the 6.25 model. This model is applicable not only in Xiu-Shui County located at latitudes of northwestern Jiangxi Province but at latitude 28 ° 41’-29 ° 22’N and longitude 113 ° 57’-114 ° 56’E, and is also applicable in the areas of northern Jiangxi and central Jiangxi . Now the year 4 ~ September 25 before and after the main rice