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      加強番茄黃化曲葉病毒病的預防

      時間: 2019-08-12      來源:     



      番茄黃化曲葉病毒病具有暴發突然、擴展迅速、危害性強、治療效果差等特點,是番茄生產最嚴重的毀滅性病害之一。對于該病種植戶一定要提前做好相關預防工作。

      黃化曲葉病毒傳播途徑與其他病毒傳播途徑不同,其主要通過煙粉虱傳播,煙粉虱吸食帶病毒汁液可相互傳播,因而一旦發生無法杜絕。病毒的發生對氣候環境和植株長勢有相應關系,持續高溫、干旱、通風不良、補水不及時、缺氧、氮肥過多、苗齡過大、苗子長勢弱都會使病害加重。黃化曲葉病毒病目前沒有很好的治療藥劑,重點是進行預防。

      1.選擇高抗黃化曲葉病毒病的品種,如以色列海澤拉系列番茄品種。

      2.使用60目以上防蟲網覆蓋,防止煙粉虱遷入,同時張掛粘蟲板,誘殺煙粉虱,一般每畝地設置黃色粘蟲板30塊。

      3.棚內殺蟲要徹底,每隔4~5天,連續使用甲維鹽、吡蟲啉噴施2~3遍,噴施殺蟲劑時一定要加入有機硅展著劑,以提高藥效。

      4.棚前盡量種植一些高于2米的高稈作物,以阻止煙粉虱接近棚室。

      5.培育健壯植株,重施磷、鉀肥,控制氮肥用量,促進植株健康生長,提高抗病力;保持棚內濕潤,做到小水勤澆,加大通風,避免高溫。

      6.藥劑預防可用阿克泰、寧南霉素、病毒A、10%鹽酸嗎啉胍可濕性粉劑、2%氨基寡糖素水劑等連噴2~3次,對預防有效。

      山東省夏津縣蔬菜服務中心? 邵紅梅 楊德峰

      責任編輯: 劉慧

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