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一、主要防治对象和防治指标害虫主要有韭蛆(其优势种为迟眼蕈蚊)、蓟马,病害主要有灰霉病、疫病。防治指标:韭蛆,被害株率1%～2%;灰霉病,病叶率3%～7%;疫病,初见病叶;一年生杂草,芽前防除;多年生小旋花草,4～6叶期防除。二、综合防治技术根据韭菜栽培种植特点,可划分为播种期、露地
First, the main control targets and control indicators pests mainly leek maggots (the dominant species of larval mosquitoes), thrips, the main disease gray mold disease. Prevention and treatment indicators: leek maggot, the victim plant rate of 1% to 2%; gray mold disease, sick leaves rate of 3% to 7%; blight, first seen disease leaves; annual weeds, pre-emergence control; 6 leaf period control. Second, comprehensive prevention and control technology According to leek cultivation and cultivation characteristics, can be divided into sowing period, open field