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2024年大豆病蟲害防控技術(shù)方案
2024-03-13
11:18:48
來源:全國農(nóng)業(yè)技術(shù)推廣服務(wù)中心 閱讀量:18890
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導(dǎo)讀:據(jù)全國農(nóng)技中心預(yù)測(cè)分析,預(yù)計(jì)2024年全國大豆病蟲害總體中等發(fā)生,發(fā)生面積1.30億畝次,重于上年。
【農(nóng)機(jī)網(wǎng) 熱點(diǎn)關(guān)注】 據(jù)全國農(nóng)技中心預(yù)測(cè)分析,預(yù)計(jì)2024年全國大豆病蟲害總體中等發(fā)生,發(fā)生面積1.30億畝次,重于上年。其中,大豆根腐病、大豆食心蟲在東北春大豆區(qū),甜菜夜蛾在黃淮海大豆玉米復(fù)合種植區(qū),煙粉虱在黃淮南部有偏重發(fā)生風(fēng)險(xiǎn)。為做好2024年大豆病蟲防控工作,制定本方案。
一、防控目標(biāo)
重大病蟲防治處置率達(dá)到90%以上,綠色防控覆蓋率達(dá)到54%以上,總體防治效果達(dá)到85%以上,重大病蟲危害損失率控制在5%以內(nèi),保障大豆生產(chǎn)安全和有效供給。
二、防控策略
堅(jiān)持預(yù)防為主、綜合防治的原則,以健康栽培為基礎(chǔ),合理利用生態(tài)調(diào)控、理化誘控、生物防治、科學(xué)用藥等技術(shù)措施,分區(qū)施策,切實(shí)保障防控技術(shù)到位,提高防治效果。
三、防控對(duì)象
(一)北方春大豆區(qū)
根腐病、胞囊線蟲病、菌核病、霜霉病、灰斑病、細(xì)菌性斑點(diǎn)病、大豆食心蟲、豆莢螟、大豆蚜、紅蜘蛛、棉鈴蟲、苜蓿夜蛾、地下害蟲、葉甲等。
(二)黃淮夏大豆區(qū)
根腐病、病毒病、擬莖點(diǎn)種腐(莖枯)病、炭疽病、地下害蟲、煙粉虱、點(diǎn)蜂緣蝽、甜菜夜蛾、棉鈴蟲、大豆食心蟲、豆莢螟、大豆蚜等。
(三)南方多作大豆區(qū)
根腐病、銹病、病毒病、炭疽病、斜紋夜蛾、甜菜夜蛾、豆卷葉螟、豆稈黑潛蠅、高隆象、點(diǎn)蜂緣蝽、稻綠蝽、豆莢螟、地下害蟲等。
四、防控措施
(一)播種期。合理輪作,減少重迎茬;選用耐抗病蟲品種,做好種子包衣。防治大豆根腐病、胞囊線蟲病等根部病害可選用含有精甲·咯菌腈、吡唑醚菌酯、甲氨基阿維菌素苯甲酸鹽等成分的種子處理劑。防治地下害蟲、大豆蚜等苗期害蟲可選用含有噻蟲嗪、吡蟲啉等成分的種子處理劑,蠐螬等地下害蟲重發(fā)區(qū)可選用吡蟲啉或金龜子綠僵菌等顆粒劑進(jìn)行撒施或種肥同播。
(二)苗期至分枝期。根腐病重發(fā)區(qū)可選用氟環(huán)唑、嘧菌酯、精甲霜靈等藥劑噴施莖基部。食葉類害蟲可選用氯蟲苯甲酰胺等藥劑噴霧防治;刺吸類害蟲可選用吡蟲啉、高氯·吡蟲啉、噻蟲·高氯氟等化學(xué)藥劑,或苦參堿、阿維菌素等生物農(nóng)藥噴霧。防治病毒病需及時(shí)防治刺吸類害蟲,阻斷其傳播病毒,可結(jié)合噴施氨基寡糖素等植物誘抗劑進(jìn)行預(yù)防。大面積連片田塊可結(jié)合使用黃板、燈誘等物理防控技術(shù),監(jiān)測(cè)并誘殺煙粉虱、金龜子和鱗翅目等害蟲成蟲。
(三)開花至鼓粒期。發(fā)病初期噴施唑醚·氟環(huán)唑、丙環(huán)·嘧菌酯等防治銹病、莖枯病和炭疽病,兼治霜霉病和細(xì)菌性斑點(diǎn)病,同時(shí)噴施葉面肥、生長調(diào)節(jié)劑、誘抗劑等,強(qiáng)健植株,預(yù)防早衰。防控點(diǎn)蜂緣蝽選用聚集信息素誘捕,并噴施噻蟲嗪等藥劑,同時(shí)兼治其它刺吸式害蟲。大豆食心蟲、豆莢螟成蟲盛發(fā)期選用食誘劑、性誘劑誘殺,產(chǎn)卵初期釋放赤眼蜂滅卵;初孵幼蟲選用蘇云金桿菌、氯蟲苯甲酰胺、高效氯氟氰菊酯等
殺蟲劑防治;老熟幼蟲開始脫莢入土前,選用球孢白僵菌粉劑均勻撒施于地表防治越冬幼蟲。紅蜘蛛選用阿維菌素、乙螨唑、噠螨靈等殺螨劑噴霧防治。蝸牛等軟體類害蟲發(fā)生為害時(shí),撒施或噴施四聚乙醛或四聚·殺螺胺等進(jìn)行防治。
(四)收獲期。收獲時(shí)秸稈粉碎還田,深翻耕耙,降低病蟲基數(shù)。
五、注意事項(xiàng)
(一)在病蟲害發(fā)生前期或初期優(yōu)先選用生物、物理等非化學(xué)防治措施,注意保護(hù)利用自然天敵和生物多樣性。
(二)防治食葉害蟲在大豆?fàn)I養(yǎng)生長期可適當(dāng)減少化學(xué)用藥,注重開花結(jié)莢鼓粒期的防控。
(三)大豆登記用藥品種有限,本方案中提到的藥劑僅供參考,根據(jù)當(dāng)?shù)剞r(nóng)業(yè)農(nóng)村部門有關(guān)規(guī)定和指導(dǎo)意見,科學(xué)選用藥劑,注意合理輪換用藥和交替使用。
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