Thaum lub sij hawm thaum cov kab tsuag rov tsim dua sai tshaj plaws thiab ua rau muaj kev puas tsuaj loj tshaj plaws, ntau yam kab tsuag feem ntau sib koom ua ke, thiab tiam sis sib tshooj loj heev. Ntau yam tshuaj tua kab muaj kev tswj tsis tau zoo, thiab ntau cov txiv hmab txiv ntoo raug puas tsuaj, ua rau cov qoob loo loj heev. Niaj hnub no, kuv xav qhia rau koj ib tug zoo heev insecticide, uas muaj ib tug zoo tswj nyhuv ntawm lub qe thiab larvae ntawm resistant pests. Tus neeg sawv cev no yog ib hom tshuaj tua kab tshiab uas tau tsim tawm hauv xyoo tas los no - lufenuron.
1. Tshuaj tua kab
Lufenuron yog tiam tshiab los hloov urea insecticides. Lub hauv paus ntsiab lus ntawm cov tshuaj tua kab yog feem ntau los ntawm kev ua ntawm kab larvae, inhibiting chitin synthesis los tiv thaiv kev loj hlob ntxiv thiab tev txheej txheem ntawm kab exoskeleton, yog li tua kab tsuag. Nws muaj zog qe tua thiab tua kab muaj peev xwm. Nws muaj cov nyhuv tshwj xeeb tua ntawm thrips, xeb mites, whiteflies thiab lwm yam kab tsuag. Nws yog tshwj xeeb tshaj yog zoo tiv thaiv kab tsuag xws li beet armyworm, paj rwb bollworm, Spodoptera litura, Spodoptera frugiperda, thiab whitefly uas tau tsim los tiv thaiv organophosphorus thiab pyrethroid tshuaj tua kab.
2. Cov yam ntxwv tseem ceeb
(1) Kev siv tshuaj tua kab dav dav: Lufenuron muaj txiaj ntsig zoo rau cov kab tsuag lepidopteran xws li paj rwb bollworm, beet armyworm, Spodoptera litura, diamondback npauj thiab lwm yam kab tsuag lepidopteran, whitefly, thrips, aphids thiab lwm yam kab tsuag pteran, ruster mites, mites, ob-spotted kab laug sab mites thiab lwm yam teeb meem mites.
(2) Tua tag nrho cov qe: Lufenuron tsis tsuas yog tua kab, tab sis kuj muaj cov nyhuv tua zoo rau cov qe. Ntau tshaj 95% ntawm cov qe tso los ntawm cov kab tsuag hauv 48 teev tom qab cov nplooj raug kho nrog cov tshuaj tsis tuaj yeem tua; qe nteg nyob rau hauv 10 hnub tsis tuaj yeem hnia ib txwm.
(3) Lub sijhawm siv tau ntev: Lufenuron muaj txiaj ntsig zoo tua cov qe thiab larvae. Tom qab cov kab tsuag noj, lub qhov ncauj yuav muab tshuaj loog tsis pub dhau 2 teev thiab tsis pub noj, yog li txwv tsis pub cov qoob loo. Lub ncov ntawm cov kab tuag yuav ncav cuag hauv 3 mus rau 5 hnub. Lub sijhawm siv tau yog 15 txog 25 hnub.
(4) Kev ua haujlwm siab, tsis muaj tshuaj lom thiab tsis muaj qhov seem: Lufenuron muaj kev nyab xeeb rau cov kab uas muaj txiaj ntsig zoo tshaj plaws thiab nyab xeeb rau tib neeg, tsiaj txhu, qoob loo thiab ib puag ncig. Nws yog ib qho tshuaj tua kab tshiab nrog kev ua haujlwm siab, tsis muaj tshuaj lom thiab tsis tshua muaj residue, tsim nyog rau kev tswj xyuas cov kab tsuag tsis muaj kuab paug.
3. Cov qoob loo siv tau
Tus neeg sawv cev tuaj yeem siv dav hauv txiv lws suav, kua txob, txiv laum huab xeeb, pob kws, taum pauv, paj rwb, qos yaj ywm, txiv hmab txiv ntoo, txiv apples, pears, walnuts, pomegranates, persimmons, kiwis, txiv duaj, lychees, mangos, longans thiab lwm yam qoob loo.
4. Tiv thaiv thiab tswj cov khoom
Lufenuron feem ntau tswj ntau ntau cov kab tsuag thiab cov kab mob phem, xws li Asian qia borer, Suav stem borer, nplej nplooj cov menyuam, pob kws borer, paj rwb bollworm, nplooj ntoos, nplooj miner, kua xeb mite, kua borer, thiab hais txog.
5. Yuav siv li cas
Txhawm rau txhim kho cov nyhuv tshuaj tua kab, nws tuaj yeem sib xyaw nrog emamectin ntsev, abamectin thiab lwm yam tshuaj kom ua tiav cov txiaj ntsig zoo thiab siv tau ntev.
Tswj cov kab tsuag xws li paj rwb bollworm, beet Armyworm, Spodoptera litura, thiab npauj pob zeb diamondback. Nws tuaj yeem siv tau thaum cov kab tsuag nyob hauv lawv cov theem pib. Siv 5% lufenuron ncua kev kawm ntawv 16-30 ml / mu, tov nrog 30 kg dej, thiab tshuaj tsuag tusyees ntawm stems thiab nplooj. Cov qe qe tuag tuaj yeem ncav cuag 87.30%; Cov nyhuv ntawm larval tswj tuaj yeem ncav cuag ntau dua 89%.
