《植物病蟲(chóng)害綠色防控技術(shù)》課件-柑橘煤煙?。p語(yǔ)）

柑橘病蟲(chóng)害綠色防控柑橘煤煙病GreenPreventionandControlofCitrusDiseasesandPestsCitrusSootyMold柑橘煤煙病CitrusSootyMold葉片受害Leafhazard果實(shí)受害Harmtofruit病原物種類(lèi)Typesofpathogens煤炱屬、刺盾炱屬、小煤炱屬Capnodium,ChaetothyriumsoinigreFum,Meliolabutleri同翅目害蟲(chóng)的分泌物和排泄物引起Causedbysecretionsandexcretaofhomopteranpests純寄生菌Pureparasiticbacteria發(fā)生規(guī)律Occurrencelaw發(fā)病高峰期：主要集中在每年的5-9月份Peakincidenceperiod:mainlyfromMaytoSeptemberofeachyear8月中下旬，病菌侵害果實(shí)的關(guān)鍵時(shí)期。Mid-to-lateAugustisacriticalperiodforthepathogenstoharmthefruits.煤煙病“罪行”"Crimes"ofDarkmildew第一宗罪：影響光合作用

Affectphotosynthesis煤煙病“罪行”"Crimes"ofDarkmildew第二宗罪：削弱樹(shù)勢(shì)Weakentreevigor煤煙病“罪行”"Crimes"ofDarkmildew第三宗罪：降低果實(shí)商品性

Reducefruitcommodity紅蠟蚧CeroplastesrubensMaskell先治蟲(chóng)，后防病Controlpestsbeforepreventingdiseases綜合防治Integratedcontrol1.農(nóng)業(yè)防治

Strengthenorchardmanagement（1）加強(qiáng)園區(qū)管理Strengthenorchardmanagement（2）做好清園工作Orchardclearing（3）合理平衡施肥Reasonableandbalancedfertilization綜合防治Integratedcontrol2.化學(xué)防治Chemicalcontrol（1）有效防治蟲(chóng)害Effectivepestcontrol蚜蟲(chóng)：應(yīng)在春季萌芽期和開(kāi)花前噴施化學(xué)藥劑進(jìn)行防治Aphids:Chemicalsshouldbesprayedduringthegerminationperiodandbeforefloweringinspringforcontrol蚧殼蟲(chóng)：應(yīng)在5月中旬，整樹(shù)噴施2-3次化學(xué)藥劑，每次間隔7-10天左右噴施一次Scaleinsects:Chemicalsshouldbesprayed2-3timesonthewholeplantinmid-May,withanintervalofabout7-10dayseachtime粉虱：應(yīng)在7-9月份，噴施化學(xué)藥劑防治。Whitefly:ChemicalsshouldbesprayedfromJulytoSeptember