Hauv 20 xyoo dhau los, kuv lub teb chaws cov tshuaj tua kab tu cev tau tsim kho sai heev. Ua ntej, vim muaj kev qhia txog ntau yam tshiab thiab cov thev naus laus zis siab heev los ntawm txawv teb chaws, thiab qhov thib ob, kev siv zog ntawm cov koom haum hauv tsev tau ua rau feem ntau ntawm cov ntaub ntawv tseem ceeb thiab ntau npaum li cas ntawm cov tshuaj tua kab kom huv. thiab hais txog kev ua tau zoo thiab kev tsim kho tshiab ntawm kev tsim tshuaj. Txawm hais tias muaj ntau hom tshuaj tua kab raw cov ntaub ntawv, raws li cov tshuaj tua kab mob muaj kev txhawj xeeb, pyrethroids tseem yog cov tseem ceeb siv tam sim no. Vim tias cov kab tsuag tau tsim cov qib sib txawv ntawm kev tiv thaiv pyrethroids hauv qee qhov chaw, thiab muaj kev tiv thaiv kev sib tw, uas cuam tshuam rau kev siv. Txawm li cas los xij, vim tias nws muaj ntau yam zoo xws li tsis tshua muaj toxicity thiab high efficiency, nws yog ib qho nyuaj rau hloov los ntawm lwm yam ntau yam nyob rau hauv ib lub sij hawm ntawm lub sij hawm. Feem ntau siv hom yog tetramethrin, Es-bio-allethrin, d-allethrin, methothrin, pyrethrin, permethrin, cypermethrin, beta-cypermethrin, deltamethrin thiab nplua nuj dextramethrin Allethrin thiab lwm yam. Ntawm lawv, cov nplua nuj D-trans allethrin yog nws tus kheej tsim thiab tsim nyob rau hauv kuv lub teb chaws. Cov kua qaub ib feem ntawm cov allethrin yog sib cais los ntawm cis thiab trans isomers thiab sab laug thiab sab xis isomers raug cais kom nce qhov sib piv ntawm nws lub cev zoo, yog li txhim kho cov khoom siv tau zoo. Nyob rau tib lub sijhawm, lub cev tsis raug hloov mus rau hauv lub cev siv tau, ntxiv txo tus nqi. Nws cim tias kev tsim cov pyrethroids hauv kuv lub teb chaws tau nkag mus rau hauv thaj chaw ntawm kev ywj pheej txoj kev loj hlob thiab nkag mus rau hauv kev ua haujlwm ntawm stereochemistry thiab kev siv tshuab ua haujlwm siab. Dichlorvos ntawm organophosphorus insecticides yog hom uas muaj cov txiaj ntsig loj tshaj plaws thiab dav tshaj plaws vim nws cov txiaj ntsig muaj zog, muaj zog tua muaj peev xwm thiab ntuj volatilization muaj nuj nqi, tab sis DDVP thiab chlorpyrifos tau txwv tsis pub siv. Xyoo 1999, Hunan Research Institute of Chemical Industry, raws li kev pom zoo ntawm WHO, tau tsim cov kab dav dav, tshuaj tua kab sai thiab acaricide pirimiphos-methyl, uas tuaj yeem siv los tswj yoov tshaj cum, yoov, kab laum thiab mites.
Ntawm cov carbamates, propoxur thiab Zhongbucarb tau siv ntau heev. Txawm li cas los xij, raws li cov ntaub ntawv cuam tshuam, cov khoom decomposition ntawm sec-butacarb, methyl isocyanate, muaj teeb meem toxicity. Cov khoom no tsis suav nrog hauv cov npe khoom siv tshuaj tua kab hauv tsev uas tau luam tawm los ntawm Lub Koom Haum Saib Xyuas Kev Noj Qab Haus Huv Hauv Ntiaj Teb hauv xyoo 1997, thiab tsuas yog Tuam Tshoj, tsis muaj lwm lub tebchaws hauv ntiaj teb tau siv cov khoom no rau cov khoom siv tshuaj tua kab hauv tsev. Txhawm rau kom muaj kev nyab xeeb ntawm cov tshuaj tua kab hauv tsev thiab ua raws li cov qauv thoob ntiaj teb, Lub Tsev Haujlwm Saib Xyuas Tshuaj Tiv Thaiv Kab Tsuag ntawm Ministry of Agriculture ua ke nrog kuv lub teb chaws cov xwm txheej, thaum Lub Peb Hlis 23, 2000, rau Zhongbuwei, cov kev cai cuam tshuam rau kev hloov maj mam hloov. rau kev txiav txim siab ntawm kev siv tshuaj tua kab hauv tsev.
Muaj ntau tus kws tshawb fawb txog kab kev loj hlob regulators, thiab muaj ntau ntau yam, xws li: diflubenzuron, diflubenzuron, hexaflumuron, thiab lwm yam. Hauv qee qhov chaw, lawv tau siv los tswj cov larvae hauv yoov tshaj cum thiab ya chaw yug me nyuam, thiab tau ua tiav cov txiaj ntsig zoo. Lawv tau maj mam nrov thiab siv.
Nyob rau xyoo tas los no, cov chav xws li Fudan University tau tshawb fawb thiab tsim cov pheromones hauv tsev, thiab Wuhan University tau tsim nws tus kheej tsim kab laum parvoviruses. Cov khoom no muaj cov kev cia siab rau kev siv dav. Cov khoom siv tshuaj tua kab mob microbial tab tom tsim kho, xws li: Bacillus thuringiensis, Bacillus sphaericus, kab laum kab mob thiab Metarhizium anisopliae tau sau npe ua cov khoom siv huv. Lub ntsiab synergists yog piperonyl butoxide, octachlorodipropyl ether, thiab synergist amine. Tsis tas li ntawd, nyob rau hauv xyoo tas los no, vim muaj teeb meem ntawm daim ntawv thov kev cia siab ntawm octachlorodipropyl ether, Nanjing Forestry Research Institute tau rho tawm AI-1 synergist los ntawm turpentine, thiab Shanghai Entomology Research Institute thiab Nanjing Agricultural University tsim ib tug 94o synergist. tus neeg sawv cev. Kuj tseem muaj cov tshuaj tiv thaiv kev sib koom ua ke, cov neeg ua haujlwm sib koom ua ke, thiab kev txhim kho ntawm S-855 cog-derived synergists.
Tam sim no, muaj tag nrho ntawm 87 cov khoom xyaw nquag ntawm cov tshuaj tua kab hauv qhov ua tau zoo ntawm kev tso npe tshuaj tua kab huv hauv peb lub tebchaws, ntawm cov no: 46 (52.87%) ntawm pyrethroids, 8 (9.20%) ntawm organophosphorus, 5 ntawm carbamates 1 (5.75). %), 5 inorganic tshuaj (5.75%), 4 microorganisms (4.60%), 1 organochlorine (1.15%), thiab 18 lwm yam (20.68%).
Post lub sij hawm: Mar-20-2023