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EffectsonControlEfficacyofPesticide-AdjuvantsMixture
againstRiceChiloSuppressalis(walker)BasedonPlant
ProtectionUnmannedAerialVehicle
1,2,3,41,2,3,41,2,3,41,2,3,4
ZILe,ZANGYu,HUANGJunhao,BAORuifeng,
1,2,3,45
ZHOUZhiyan,XIAOHanxiang
（1.CollegeofEngineering,SouthChinaAgriculturalUniversity/GuangdongEngineeringResearchCenterforAgricul‐
turalAviationApplication,Guangzhou510642,China;2.GuangdongProvincialKeyLaboratoryforAgriculturalArti‐
ficialIntelligence,Guangzhou510642,China;3.NationalCenterforInternationalCollaborationResearchonPreci‐
sionAgriculturalAviationPesticidesSprayingTechnology,Guangzhou510642,China;4.KeyLaboratoryofKeyTech‐
nologyonAgriculturalMachineandEquipment(SouthChinaAgriculturalUniversity),MinistryofEducation,Guang‐
zhou,GuangdongProvince,P.R.China,Guangzhou510642,China;5.Institute,GuangdongAcademyofAgricultural
Sciences/GuangdongProvincialKeyLaboratoryofHighTechnologyforPlantProtection,Guangzhou510640,China）
Abstract:Toexploretheeffectofpesticide-adjuvantsmixtureonthecontrolefficacyagainstRiceChiloSuppressalis(walker).
Thisstudydesignedathree-factor,three-levelorthogonalexperimentswithpesticides(10%emamectinbenzoate·indoxacard
SC,5%chlorantraniliproleSCand0.8%rotenoneSC),adjuvants(organosilicon,lecithinandmineralOil),sprayvolume(21,
2
24and27L/hm),referredtothethree-factor,three-levelorthogonalexperimentalscheme.Andmadetheblankfactorthedevia‐
tiontoanalyzeitsrationality.Analysisofvariance(ANOVA)statisticalmethodwasusedtoanalyzethesignificancelevelof
eachfactor.Duncan''snewmultiplerangetest(DMRT)methodwasusedtoanalyzetheorderoftheinfluenceofdifferentlevels
ofeachfactoronthecontrolefficacyagainstRiceChiloSuppressalis(walker).Theresultsshowedthat,undertheexperiment
conditionsofthisresearch,themeansquarevalueofthedeviationfactorwassmallerthanthemeansquarevalueofthepesti‐
cides,theadjuvantsandthesprayvolume,andthedeviationoftheorthogonalexperimentwaswithinareasonablerange.The
mainorderoftheeffectofthethreefactorsonthecontrolefficacyofRiceChiloSuppressalis(walker)was:adjuvants>pesti‐
cides>sprayvolumn.Onthe14thdayafterspraying,pesticidesshowedasignificanteffectonthecontrolefficacy(P<0.05)and
adjuvantsshowedahighlysignificanteffectonthecontrolefficacy(P<0.01),andsprayvolumeshowednosignificanteffecton
thecontrolefficacy.Onthe14thdayafterspraying,thelevel3ofthefactor"pesticides"wasmoreeffective,intheorderofRo‐
tenone>Chlorantraniliprole>EmamectinBenzoate·Indoxacard.Thelevel1ofthefactor"adjuvants"wasmoreeffective,in
theorderofOrganosilicon>Lecithin>MineralOil.Thelevel3ofthefactor"sprayvolume"wasmoreeffective,intheorder
222
of27L/hm>24L/hm>21L/hm.Therefore,apreferredpesticide-adjuvantsmixturemethodwas0.8%rotenoneSC,organo‐
siliconadjuvantsand27L/hm2ofsprayvolume,whichhadarapidandlong-lastingcontrolefficacy,anditscontrolefficacyin
thefieldreached81.45%onthe14thdayafterspraying.Additionally,therewasalsoasatisfactorypesticide-adjuvantsmixture
methodthatwas5%Chlorantraniliprole,organosiliconadjuvantsand24L/hm2ofsprayvolume.Thismixturemethodalsoper‐
formedwell,achieving79.3%controlefficacyinthefieldonthe14thdayafterspraying.Thisstudycouldprovideareference
fortheoptimizationofthemixturemethodsofsolutions(pesticides,adjuvantsandsprayvolume)forcontrollingRiceChilo
Suppressalis(walker).
Keywords:plantprotectionUAV;RiceChiloSuppressalis(walker);adjuvants;pesticide;controlefficacy
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