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全國農(nóng)技中心印發(fā)植保無人機施藥防治水稻“兩遷”害蟲技術(shù)指導(dǎo)意見

2023-08-02 09:16:29 來源：全國農(nóng)技中心 閱讀量：18693 評論

　　【農(nóng)機網(wǎng) 熱點關(guān)注】今年水稻“兩遷”害蟲遷入早、峰次多、蟲量大，部分稻區(qū)發(fā)生程度為近10年最重，將對中晚稻生產(chǎn)造成嚴重影響，防治任務(wù)艱巨。為強化對專業(yè)化防治服務(wù)組織采用植保無人機防治水稻“兩遷”害蟲的技術(shù)指導(dǎo)，確保水稻“兩遷”害蟲防治效果和施藥安全，全國農(nóng)技中心根據(jù)近年來植保無人機防治水稻病蟲害聯(lián)合測試結(jié)果，特制定如下意見。
 
　　一、飛行參數(shù)設(shè)置
 
　　不同型號的植保無人機應(yīng)根據(jù)畝施藥液量設(shè)定飛行參數(shù)。防治水稻“兩遷”害蟲時，畝施藥液量2—3升，飛行速度3—4 m/s，以植保無人機旋翼吹開水稻為宜，飛行高度2—3 m(離水稻冠層的高度)。如稻飛虱蟲口基數(shù)百叢1000頭時，畝施藥液量應(yīng)確保3升以上，發(fā)生重的田塊(百叢3000頭以上)可連續(xù)飛防2次進行防治。
 
　　二、防治藥劑選擇
 
　　根據(jù)稻飛虱和稻縱卷葉螟抗藥性監(jiān)測結(jié)果，防治褐飛虱推薦藥劑：三氟苯嘧啶、烯啶蟲胺以及吡蚜酮混配制劑，防治白背飛虱推薦藥劑：呋蟲胺、吡蚜酮、氟啶蟲胺腈、烯啶蟲胺、三氟苯嘧啶；防治稻縱卷葉螟推薦藥劑：茚蟲威、多殺霉素、乙基多殺菌素、甲氨基阿維菌素苯甲酸鹽。在遷入?yún)^(qū)和遷出區(qū)之間、上下代之間，要輪換使用不同作用機理的藥劑。
 
　　中國農(nóng)業(yè)機械流通協(xié)會
 
　　，贊4
 
　　三、噴霧助劑選擇
 
　　采用植保無人機施藥作業(yè)前，應(yīng)在藥液中添加適量的改性植物油、礦物油等噴霧助劑并混合均勻，用于改善農(nóng)藥藥液性能，增強霧滴沉降、抗飄移、抗蒸發(fā)等性能。
 
　　四、飛防注意事項
 
　　(一)施藥作業(yè)前，要調(diào)查作業(yè)周邊環(huán)境、確定作業(yè)區(qū)域及邊界。根據(jù)作業(yè)區(qū)域，綜合評估潛在風(fēng)險，防止噴霧霧滴飄移造成非靶標生物毒害和周邊作物藥害。
 
　　(二)施藥作業(yè)時，風(fēng)力應(yīng)在三級以內(nèi)，溫度不超過30℃。鑒于夏季氣溫較高，可根據(jù)植保無人機自主作業(yè)的特點，因地制宜選擇在夜間作業(yè)。
 
　　(三)植保無人機起降作業(yè)時，應(yīng)遠離障礙物和人員，作業(yè)人員應(yīng)穿戴必要的防護用品，避免處在噴霧的下風(fēng)位，嚴禁在施藥區(qū)穿行，作業(yè)時禁止吸煙及飲食。
 
　　五、作業(yè)效果調(diào)查
 
　　施藥防治后，要及時對飛防作業(yè)質(zhì)量和防治效果進行跟蹤調(diào)查。施藥時在水稻上、中、下部葉片分別布放霧滴測試卡，進行霧滴密度檢測，確保每平方厘米霧滴數(shù)量達20個以上。施藥后1、3、7天分別開展防治效果調(diào)查，對防治效果不好的田塊，及時更換藥劑進行補防。

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