《植物病蟲害綠色防控技術(shù)》課件-柑橘紅黃蜘蛛（雙語）

柑橘病蟲害綠色防控柑橘紅、黃蜘蛛GreenPreventionandControlofCitrusDiseasesandPestsCitrusRedandYellowMites柑橘紅蜘蛛——1.為害狀柑橘全爪螨（紅蜘蛛）為害狀Citrusredmite-1.HazardHazardofpanonychuscitrimcgregor(citrusredmite)成螨卵柑橘紅蜘蛛——顯微鏡下的紅蜘蛛Citrusredmite-redmiteundermicroscopeImagoesEgg柑橘紅蜘蛛——2.發(fā)生規(guī)律繁殖力特強(qiáng)一年十多代世代重疊知識(shí)回顧：一年多代的害蟲，在一定時(shí)間和空間前后世代往往相互重疊，同一時(shí)間出現(xiàn)不同世代的相同蟲態(tài)，不同蟲態(tài)相互并存，這樣的現(xiàn)象叫做世代重疊。Citrusredmite-2.OccurrenceregularityExtremelyhighfertilityMorethantengenerationsayearGenerationoverlappingKnowledgereview:pestsofmorethanonegenerationinayear,aroundacertaintimeandspaceGenerationsoftenoverlapwitheachotherandthesamewormsofdifferentgenerationsappearatthesametimeThecoexistenceofdifferentinsectstagesiscalledgenerationoverlapping.柑橘紅蜘蛛——2.發(fā)生規(guī)律越冬場所葉片背面枯枝落葉土壤表層Citrusredmite-2.OccurrenceregularityOverwinteringplace柑橘紅蜘蛛——2.發(fā)生規(guī)律3月開始為害繁殖7-8月高溫?cái)?shù)量少9-10月秋梢期溫度漸降蟲口密度達(dá)高峰4-5月春梢期種群數(shù)量迅速增加達(dá)高峰Citrusredmite-2.OccurrenceregularityFromSeptembertoOctober,thetemperaturegraduallydropsintheautumnshootstage,andthepopulationdensityreachesthepeakLowamountfromJulytoAugustduetohightemperatureLowamountfromJulytoAugustduetohightemperatureFromApriltoMay,thepopulationrapidlyincreasestoapeakinthespringshootstage柑橘黃蜘蛛——1.為害狀柑橘始葉螨（黃蜘蛛）為害狀Citrusyellowmite-1.HazardHazardofEotetranychuskankitusEhara(yellowmite)柑橘黃蜘蛛——顯微鏡下的黃蜘蛛Citrusyellowmite-yellowmiteundermicroscope防治措施（1）農(nóng)業(yè)防治加強(qiáng)柑桔園水肥管理

冬春季干旱時(shí)及時(shí)灌水、切忌偏施氮肥Strengthenwaterandfertilizermanagementincitrusorchards.Irrigateintimeincaseofdroughtinwinterandspring,andavoidexcessiveapplicationofnitrogenfertilizer冬季結(jié)合整枝修剪剪除過密枝條和被害枝條（2）生物防治

Biologiccontrol

保護(hù)和利用天敵，對(duì)害螨有顯著的控制作用。4～5月和9～10月間，在平均每葉有害螨2頭以上的柑橘樹上，每株釋放鈍綏螨等捕食螨。

Protectandmakeuseofnaturalenemiestosignificantlycontrolmites.FromApriltoMayandSeptembertoOctober,onthecitrustreeswithanaverageofmorethantwoharmfulmitesperleaf,releasepredatorymitessuchasAmblyseiidaetoeachtree.（3）化學(xué)防治

Chemicalcontrol合理用藥的關(guān)鍵是掌握防治指標(biāo)、防治時(shí)期和藥劑種類。

Thekeytorationaluseofpesticidesistomasterthecontrolindicators,controlperiod,andchemicaltypes.Citrusyellowmite-yellowmiteundermicroscopeAgriculturalcontrolPruneinwintertoremoveoverdensean