最近有很多種蔥的農民朋友詢問大蔥的"白點瘋"怎麼治療,其實農民朋友所說的"白點瘋"由三種原因引起,即一病兩蟲。
1.huimeibing。yepianshangchanshenghuibaisexiaobandian,houfazhanchengbaisehuaisiban,tuoyuanzhijinsuoxing,duogebingbanlianjiechengpianzhiyeniuqukusi。yaojifangzhituijianshiyongquanxinxingshajunjienzemei1000倍液噴霧防治,能有效控製病情的蔓延。
2.薊馬。它的成蟲、若蟲以鈍吸式口器刺吸蔥的心葉,使蔥形成許多長形黃白斑紋,嚴重時,蔥葉扭曲枯黃。藥劑防治可選用20%啶蟲脒3000倍液或10%吡蟲啉1500倍液等噴霧防治。
3.qianyeying。youchongfuchuhou,jizaiyeneiqianshiyerou,xingchenghuibaisewanyanqiandao,qiandaobuguize,suichonglingzengchangerjiakuan,youchongzaiyezuzhizhongdesuidaoneinengziyoujintui,bingzaiyetongneiwaiqianyiyubeihaibuwei,yipiantongyeshangyouduogechongdaoshiqiandaobicichuantong,yanzhongshihoukebianjiquanye,zhishiyepiankuhuang。yaojikeyong2%阿維菌素1000倍液等進行噴霧防治。
手機版




