Thiocyclam yog ib qho tshuaj nereistoxin-analogue insecticide uas ua los ntawm kev sib cuag, noj, thiab kev hloov pauv hauv lub cev. Nws nthuav tawm cov khoom ovicidal zoo heev thiab tau siv dav rau kev tswj kab tsuag nrog kev ua tau zoo, ua rau nws yog tus neeg sawv cev tseem ceeb hauv kev tiv thaiv qoob loo thoob ntiaj teb.
Thiocyclam muaj kev tswj xyuas kev ua haujlwm ruaj khov, tswj cov tshuaj tua kab mob siab txawm tias qhov kub thiab txias. Nws muaj toxicity nruab nrab rau cov tsiaj siab dua thiab nruab nrab mus rau tsawg toxicity rau ntses thiab cov kab mob hauv dej; thaum muaj tshuaj lom rau honeybees thiab silkworms, nws tsis muaj teebmeem rau cov yeeb ncuab ntuj.
Thiocyclam Insecticide yog dab tsi?
Thiocyclam (lub npe tshuaj: N, N-dimethyl-1,2,3-trithian-5-amine hydrogen oxalate) kuj paub los ntawm cov npe lag luam xws li Evisect, Dothian, thiab Methiocyclam.
Physicochemical zog: Nws yog formulated raws li ib tug soluble hmoov, tshwm raws li ib tug dawb mus rau daj daj hmoov nrog ib tug melting point ntawm 125-128 degree. Nws solubility yog 84 g / kg hauv dej ntawm 23 degree; 500 mg / L hauv acetone; 1.9 g / L hauv diethyl ether thiab ethanol; 17 g / L hauv methanol; thiab tsawg dua 10 g / L hauv xylene. Nws yog insoluble hauv kerosene tab sis soluble hauv cov kuab tshuaj xws li benzene, toluene, thiab turpentine, thiab me ntsis soluble hauv dej. Nws tseem nyob ruaj khov rau tsawg kawg yog ob xyoos nyob rau hauv ib txwm khaws cia.
Mechanism ntawm Action
Thiocyclam ua haujlwm li neurotoxin los ntawm kev tuav acetylcholine receptors thiab thaiv kev sib kis ntawm synaptic. Thaum intoxication, kab tsuag ua rau tuag tes tuag taw ua ntej nws thiaj li tuag. Nws feem ntau ua los ntawm kev sib cuag thiab noj, tab sis kuj muaj cov kab mob, fumigant, thiab ovicidal zog. Nws muaj kev ua haujlwm dav dav, muaj txiaj ntsig zoo tiv thaiv kab tsuag xws li Lepidoptera, Coleoptera, Hemiptera, thiab Thysanoptera. Txawm li cas los xij, nws cov nyhuv tshuaj lom yog qeeb - ua yeeb yam, thiab cov tib neeg muaj tshuaj lom me me tuaj yeem rov zoo; tank- sib tov nrog ceev- cov tshuaj tua kab tuaj yeem txhim kho lub zog poob qis. Nws muab kev tswj xyuas kom ruaj khov thiab tswj xyuas cov kab mob tua kab mob siab txawm tias nyob rau hauv qis - qhov kub thiab txias. Nws nthuav tawm cov tshuaj toxicity nruab nrab rau cov tsiaj siab dua thiab muaj cov tshuaj lom rau cov kab mob hauv dej (xws li ntses); nws yog tshuaj lom rau honeybees thiab silkworms tab sis tsis muaj kev cuam tshuam rau cov yeeb ncuab ntuj.
Cov txiaj ntsig tseem ceeb ntawm Thiocyclam
Lub zog tseem ceeb ntawm thiocyclam nyob hauv nws cov txheej txheem neurotoxicological tshwj xeeb. Thaum sib cuag nrog cov tshuaj, nws nkag mus rau cov kab tsuag lub cev thiab:
· Blocks acetylcholine receptors, inhibiting paj hlwb.
· Ua rau tuag tes tuag taw, ua rau kab tsuag tsis pub noj.
Hom kev ua tshwj xeeb no ua kom tsis muaj qhov sib txawv ntawm - tawm tsam nrog cov tshuaj tua kab tseem ceeb xws li organophosphates, pyrethroids, lossis neonicotinoids; Nws tseem muaj txiaj ntsig zoo tiv thaiv kab tsuag xws li kab txaij nplej qia borer, nplooj nplooj ntawv, thiab pob zeb diamondback npauj. Muab piv rau cov tshuaj tua kab ib txwm muaj uas muaj ib hom kev ua haujlwm thiab ua rau muaj teeb meem tiv thaiv, thiocyclam muaj qhov kev xaiv tsis tuaj yeem hloov pauv rau kev tswj kab tsuag.
Cov Hom Phiaj Tseem Ceeb
Nws feem ntau tsom rau plaub yam kab tsuag: kab kab kab, kab tsuag ntawm oilseed thiab nyiaj ntsuab qoob loo, zaub kab, thiab txiv hmab txiv ntoo kab tsuag.
·Kev tswj cov kab tsuag nplej: Piv txwv li, thaum ua ntawv thov thaum lub sij hawm ua mov nplej theem - tshwj xeeb tshaj yog nyob rau ntawm lub ncov ntawm lub 1st thiab 2nd larval instars ntawm cov nplooj ntawv tais ceev tseg - cov tshuaj ua rau larvae kom txhob noj yuav luag tam sim ntawd. Qhov no tiv thaiv cov nplooj ntoo ntxiv - dov thiab kev puas tsuaj rau cov nplooj ua haujlwm, yog li khaws cia thaj chaw photosynthetic thaum lub sij hawm mus rau theem thiab txo qhov tshwm sim ntawm cov nplej tsis tau sau.
·Control ntawm oilseed thiab nyiaj ntsuab qoob kab kab: Larvae thiab cov neeg laus ntawm Colorado qos beetle feem ntau pub rau hauv qab ntawm nplooj. Thiocyclam txoj kev tiv thaiv tua cov kab tsuag thaum raug cov tshuaj tsuag ncaj qha, thaum nws cov tshuaj lom hauv plab tseem zoo tiv thaiv kab tsuag uas noj cov nplooj ntoo; tshuaj tsuag ob sab saum toj thiab hauv qab nplooj nplooj kom paub meej.
·Tswj cov kab tsuag zaub: Cabbage worms feem ntau noj nyob rau saum nplooj nplooj, whereas pob zeb diamondback npauj larvae nyiam mus nkaum ze ntawm nplooj hauv qab, lub plawv nplooj, thiab nplooj nplooj. Thiocyclam qhov kev tiv thaiv kev tiv thaiv tua kab tsuag thaum raug, thiab nws cov tshuaj lom hauv plab ua rau lawv tsis pub noj sai. Qhov no tiv thaiv kev puas tsuaj ntxiv ntawm nplooj ntoo, tiv thaiv kev ua lag luam ntawm nplooj ntoo, thiab txo qis nyiaj txiag poob.
·Tswj cov txiv hmab txiv ntoo kab tsuag: Citrus leafminer yog cov kab tsuag loj heev thaum lub sij hawm tshiab tua ntawm citrus ntoo. Siv cov tshuaj tua kab thaum tus menyuam mos nyob rau hauv thawj lossis thib ob instar-tsuas yog hatched thiab tseem tsis tau dhuav tob rau hauv cov ntaub so ntswg- tso cai rau kev sib cuag thiab plab- tshuaj lom ntawm nereistoxin- tshuaj tua kab tshuaj (xws li thiocyclam) ua kom sai sai; cov larvae sai sai ua tuag tes tuag taw thiab tsis pub noj, ua rau muaj kev tiv thaiv zoo heev ntawm tua.
Cov qoob loo tsim nyog rau kev kho mob:
Zaub, mov, pob kws, txiv hmab txiv ntoo ntoo, tshuaj yej nroj tsuag, thiab lwm yam.
Lus Cim Tseem Ceeb: Txhua daim ntawv thov yuav tsum nruj me ntsis ua raws li tus nqi ntau npaum li cas thiab cov qoob loo specifications teev nyob rau hauv daim ntawv sau npe tshuaj tua kab hauv zos.
