ICS65.020.20CCSB16DB42湖北省地方标准DB42/T678—2023代替DB42/T678—2011茶小绿叶蝉绿色防控技术规程Codeofpracticeforgreencontroloftealeafhopper2023-05-16发布2023-07-16实施湖北省市场监督管理局发布DB42/T678—2023I目次前言................................................................................III引言..................................................................................V1范围...............................................................................12规范性引用文件.....................................................................13术语和定义.........................................................................14监测调查...........................................................................1种群数量调查...................................................................1虫口密度调查...................................................................14.2.1调查地点...................................................................14.2.2调查时间...................................................................24.2.2.1越冬虫口密度调查.......................................................24.2.2.2生长季节虫口密度调查...................................................24.2.3调查方法...................................................................2危害程度调查...................................................................24.3.1调查时间...................................................................24.3.2调查方法...................................................................24.3.3分级标准...................................................................2天敌种类调查...................................................................25绿色防控...........................................................................2防治原则.......................................................................2防治指标.......................................................................3分区防治.........................................................
