![](https://nthumb.tpgimages.com/mid2_com_img/28103/24053/TOP22296348.jpg)
Using high-performance liquid chromatography, USDA entomologists Michael Reding (left) and Christopher Ranger analyze geranium extracts with paralytic activity against Japanese beetles to identify the active phytochemicals.
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TOP22296348
Source:
達志影像
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RM
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須由TPG 完整授權
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paralyticcompoundscomputeranalysisliquidchromatographytwopeopleentomologistoccupationplant-basedpesticideplant-basedinsecticideinsecticidalphytochemicalsorganicpesticideagriculturalresearchusdaunitedstatesresearchphytochemicalsphytochemicalpestspesticidespersonpeoplenaturalpesticidejapanesebeetlesinsecticidesinsecticidegeraniumsgeraniumextractingcontrolbotanicalamericanagriculturalpestmanmaleadulttechniciansscientistsresearchersscientistresearcherentomologyagricultureusanorthamericalaboratoryplanthumanequipment
adultagriculturalagriculturalagricultureamericaamericananalysisbeetlesbotanicalchromatographycompoundscomputercontrolentomologistentomologyequipmentextractinggeraniumgeraniumshumaninsecticidalinsecticideinsecticideinsecticidesjapaneselaboratoryliquidmalemannaturalnorthoccupationorganicparalyticpeoplepeoplepersonpestpesticidepesticidepesticidepesticidespestsphytochemicalphytochemicalsphytochemicalsplantplant-basedplant-basedresearchresearchresearcherresearchersscientistscientistsstatestechnicianstwounitedusausda