Taw qhia rau Sulfoxaflor
Sulfoximine yog tshuaj tua kab sulfoximine tsim los ntawm Dow AgroSciences (tam sim no Corteva) hauv Tebchaws Meskas. Nws ua rau kab acetylcholine receptors thiab yog acetylcholine receptor agonist.
Sulfoxaflor muaj txiaj ntsig zoo rau kev nqus cov kab tsuag xws li aphids, planthoppers, thiab whiteflies, thiab vim nws cov qauv tshuaj tshiab, nws tsis muaj qhov cuam tshuam nrog cov tshuaj tua kab neonicotinoid. Nws tuaj yeem siv rau kev tswj hwm kev tiv thaiv los tiv thaiv thiab tswj cov kab tsuag uas tiv taus neonicotinoids, pyrethroids, organophosphorus thiab carbamate insecticides. Ua tsaug rau nws cov kev tswj hwm zoo heev thiab kev tswj hwm dav dav, kev muag khoom ntawm sulfoxaflor tau pib tswj hwm txoj kev loj hlob sai txij li thaum nws tso tawm, nrog rau kev loj hlob txhua xyoo ntawm 18.3% los ntawm 2014 txog 2019.
Mechanism ntawm kev ua thiab kev siv
Sulfoxaflor yog nicotinic acetylcholine receptor agonist. Tom qab khi rau lub receptor, qhov kev ua haujlwm ntawm lub receptor yog qhib, lub receptor channel qhib, thiab Na + sab nraum lub cell membrane ntws mus rau hauv lub cell, tswj lub zog ntawm lub paj hlwb los ntawm hluav taws xob teeb liab kis tau tus mob ntawm paj hlwb. Nws muaj kev ua haujlwm ntawm qhov systemic conduction. Tom qab kev tswj hwm, nws coj los ntawm hauv qab mus rau sab saum toj los ntawm xylem ntawm cov nroj tsuag.
Lub International Action Committee on Insecticide Resistance (IRAC) faib sulfoxaflor raws li 4C (sulfoximines) pawg ntawm pawg 4, thiab nws yog tib cov khoom xyaw hauv pawg no.
Sulfoxaflor muaj ob qho tib si plab lom thiab tiv thaiv kev tua. Nws muaj ib tug dav insecticidal spectrum thiab zoo tiv thaiv ntau yam kab tsuag nrog nqus qhov ncauj. Xws li kab tsuag Hemipteran, Lygus kab, Homoptera kab tsuag xws li aphids, scale kab, planthoppers, whiteflies, thiab lwm yam. Nws yog tsim rau ntau yam qoob loo, xws li citrus, paj rwb, zaub qhwv, paj, zaub thiab txiv hmab txiv ntoo ntoo. Nws muaj kev tswj xyuas zoo heev tiv thaiv kab tsuag, ua haujlwm zoo sai thiab ua haujlwm ntev. Nws tuaj yeem siv rau kev tswj hwm kev tiv thaiv kom zoo tiv thaiv thiab tswj kev nqus cov kab tsuag nrog lub qhov ncauj uas tiv taus neonicotinoids, pyrethroids, organophosphorus thiab carbamate insecticides.
Cov ntsiab lus
Sulfoxaflor yog ib qho tshuaj tua kab sulfoximine uas ua rau acetylcholine receptors ntawm kab. Nws yog systemic thiab yuav absorbed los ntawm stems, nplooj thiab keeb kwm ntawm cov nroj tsuag. Nws muaj ib tug dav insecticidal spectrum, high efficiency, tsawg npaum li cas, ntev ntev nyhuv, thiab yog tshwj xeeb tshaj yog zoo tiv thaiv piercing-sucking mouthparts kab tsuag. Ntxiv mus, nws cov qauv tshuaj yog qhov tshiab thiab tsis muaj kev sib tw nrog cov tshuaj tua kab neonicotinoid. Nws tuaj yeem siv los tswj cov kab tsuag uas tiv taus neonicotinoids, pyrethroids, organophosphorus, thiab tshuaj tua kab carbamate. Txawm li cas los xij, sulfoxaflor yog cov tshuaj lom ntau rau cov muv, yog li muaj kev pheej hmoo ntawm kev txwv nyob rau xyoo tas los no. Tsis tas li ntawd, lub sij hawm patent hauv tsev tseem yog peb mus rau plaub xyoos, thiab cov nqi tsim khoom ntawm cov tshuaj tseem ceeb kuj yog siab heev. Ntau manufacturers xav tsim nws thiab yog li ntawd deterred los ntawm kev tsim nws. Txawm li cas los xij, nws cov txheej txheem tshwj xeeb ntawm kev ua thiab cov tshuaj tua kab muaj txiaj ntsig zoo tsim nyog ntawm kev ua lag luam kev cia siab.
