打赢病虫监测预警开春“第一仗”!广东开展农作物病虫冬后基数大调查
农作物病虫冬后基数与全年农作物病虫发生密切相关,是打赢调查科学研判病虫发生趋势、做好农作物病虫防控工作部署的病虫重要依据。
今年一开春,监测广东省农业有害生物预警防控中心(下称“省预警防控中心”)就高度重视农作物病虫冬后基数调查工作。开春开展通过坚持及早谋划、周密部署、高效推进,高质量完成了今年病虫冬后基数调查工作,打赢了病虫监测预警开春“第一仗”,为病虫预警防控高效助力主要作物大面积单产提升工作开好局、起好步。
结果表明,今年我省主要病虫冬后基数维持偏高态势!其中,水稻钻蛀性螟虫冬后基数继续保持较高虫量,回升趋势明显。蔬菜小菜蛾发生量高于去年,黄曲条跳甲为近5年新高。
高度重视,及早谋划周密部署
广东地处祖国大陆最南端,主要粮食作物水稻要种植两季,春耕备耕开始早、时间短、任务重。
每年的病虫监测预警要为春耕备耕提供高质量的技术支撑服务,必须做到抓早抓好,而农作物病虫冬后基数调查对于确定当年病虫发生为害基调、预测发生为害趋势非常重要。
省预警防控中心高度重视病虫冬后基数调查工作,把病虫冬后基数调查作为必须坚持好执行好的一项基本调查制度,作为病虫监测预警工作开春“第一仗”,紧盯春耕备耕前完成的时间节点,做到早研究、早谋划、周密部署。
潮南区冬后调查
今年1月23日,省预警防控中心印发了《广东省农作物病虫冬后基数调查方案》,规范了我省水稻(稻茬、再生稻)、玉米、蔬菜、果树等主栽农作物重大病虫害冬后基数的调查时间和调查方法,统一了重大病虫冬后基数调查数据要求,确保能够准确分析比较我省各地病虫冬后基数情况以及年度间变动情况。
切实抓好落实,高效推进病虫冬后基数调查
省预警防控中心通过组织发动、宣传培训、调研指导,推动全省各级植保部门严格按照调查方案开展病虫冬后基数调查。
对此,我省主要农业县(市、区)植保部门积极响应,对照调查方案要求,结合当地实际完善调查计划,深入田间地头,全力做好病虫冬后基数调查。
据初步统计,今年全省共出动3500多人次开展病虫冬后基数调查,共收到水稻、玉米、果树、蔬菜等作物重大病虫冬后基数调查数据1200多条。
惠州龙门县冬后调查柑桔
其中,惠州市市县两级共出动了183人次开展调查,对水稻、玉米、柑橘、蔬菜等作物重大病虫冬后基数开展全面调查,调查面积5000多亩;高州市组织植保技术人员56人次,深入15个乡镇、75个自然村田间地头、果园,通过剥查稻桩、田间踏查等方式,开展水稻、荔枝、龙眼、玉米和蔬菜等作物重大病虫害冬后基数调查,调查面积1500多亩。
高州市香蕉冬后调查
全面科学分析,精准把握冬后病虫发生态势
在省、市、县三级植保部门齐心协力下,通过一个多月专项调查,全面摸清了今年病虫冬后基数。
结果表明,今年我省主要病虫冬后基数维持偏高态势!一是水稻钻蛀性螟虫冬后基数继续保持较高虫量,虽略低于去年,但明显高于历年平均值,以二化螟和大螟为主,两者合计占比达84%,三化螟占比15%,回升趋势明显。二是草地贪夜蛾冬后基数与去年持平。三是蔬菜小菜蛾发生量高于去年,黄曲条跳甲为近5年新高。四是柑橘红蜘蛛和荔枝蝽冬后虫量略高于去年。
始兴县甘蓝病虫调查
今年病虫冬后基数调查工作的高质量完成,为研判全年病虫害发生为害趋势提供了第一手数据,为科学部署重大病虫监测防控工作打下了良好基础,病虫预警防控为助力大面积提高农作物单产实现了良好开局。
【作者】黄丽豪 黄德超
【来源】南方农村报
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