从4月中下旬开始,南方稻区病虫草害防治由南到北陆续开始。据全国农业技术推广服务中心预计,2015年水稻病虫害将呈偏重发生态势,重于2014年,发生面积14.15亿亩次。其中,虫害以稻飞虱、稻纵卷叶螟和螟虫为主,发生面积10.1亿亩次;病害以纹枯病、稻瘟病、病毒病为主,发生面积4.05亿亩次。水稻用药市场巨大,业内预测,2015年水稻农药市场销售额将会高于2014年,建议结合当前市场使用较 From mid to late April, prevention and control of pests and weeds in southern rice areas started from south to north one after another. According to the National Agricultural Technology Extension Service Center, it is estimated that in 2015, pests and diseases in rice will be on the rise with a heavier weight. In 2014, an area of ​​1,415 million mu occurred. Among them, the pests were mainly planthoppers, rice leafrollers and stem borers, with an area of ​​1.01 billion mu; diseases were mainly sheath blight, rice blast and virus disease with an area of ​​405 million mu. Rice drug market is huge, the industry forecast that in 2015 rice pesticide market sales will be higher than in 2014, it is recommended combined with the current market use of more