Nyob rau hauv xyoo tas los no, nrog rau kev txhim kho txuas ntxiv thiab kev loj hlob ntawm cov chaw ua liaj ua teb, ib qho kev tshwm sim tsis tu ncua thiab nyuaj rau tswj kab tsuag tau dhau los ua teeb meem ntev rau ntau tus neeg ua liaj ua teb thiab txawm tias cov neeg ua haujlwm tiv thaiv cov nroj tsuag, thiab qhov ntawd yog lub tsev cog khoom whitefly. Niaj hnub no kuv yuav qhia koj txog cov ncauj lus kom ntxaws tshwm sim ntawm cov kab dawb me me no thiab qee qhov kev ntsuas uas tuaj yeem ua rau kev tiv thaiv thiab tswj.
Whiteflies, feem ntau hu ua moths me me, muaj nyob rau hauv qhov kev txiav txim Homoptera thiab tsev neeg Aleyrodidae. Nws yog ib hom kab mob polyphagous uas muaj ntau hom tswv, muaj peev xwm ua kom muaj peev xwm loj hlob, thiab kev loj hlob sai. Nws feem ntau pub rau hauv qab ntawm nplooj nplooj. Nyob rau tib lub sijhawm, vim nws qhov me me, nws ya mus ntawm qhov kov, ua rau nws nyuaj rau tswj.
Ib zaug cuam tshuam los ntawm whitefly kev puas tsuaj, nplooj ntawm cov qoob loo yuav dhau los ua chlorotic, wilted los yog tuag. Cov nymphs nyiam noj cov nplooj ntawm cov zaub solanaceous, ua rau cov nplooj ntoo tsim cov kab mob nyiaj, uas feem ntau tsis meej pem nrog cov kab mob kis, ua rau txo qis yields thiab txawm tias lub vaj puas tsuaj. Honeydew kuj tseem yuav zais thaum lub sijhawm pub mis, ua rau cov qoob loo sooty. Tsis tas li ntawd, whiteflies kuj yog cov kis ntawm ntau cov kab mob qoob loo, xws li cov kab mob luam yeeb mosaic, kab mob nplooj curl, thiab lwm yam, thiab qee zaum qhov kev puas tsuaj los ntawm kev puas tsuaj ncaj qha yog qhov hnyav dua.
Greenhouse whiteflies tuaj yeem tsim tau 10 tiam hauv ib xyoos hauv thaj chaw tiv thaiv, nrog rau tiam loj sib tshooj. Hauv tsev cog khoom, nws yuav siv li 23 mus rau 32 hnub kom tiav lub qe-nymph-pupa-laus tiam. Tom qab ib tiam neeg tuaj yeem nce 64.2 npaug. Cov poj niam laus ua khub rau 1 mus rau 3 hnub, thiab txhua tus poj niam nteg qe 120 txog 130 qe, nrog rau qhov siab tshaj plaws ntawm 534 qe. Tsis muaj diapause lossis dormancy.
Kev tiv thaiv thiab kev kho mob:
1. kev tswj xyuas kev ua liaj ua teb
Tshem tawm qhov chaw ntawm kab thiab ua ntej cog qoob loo hauv tsev cog khoom, ntxuav cov nroj tsuag hauv tsev cog khoom thiab cov ceg tuag thiab nplooj ntawm cov qoob loo yav dhau los, thiab hlawv lawv ua ke. Thaum lub sij hawm txoj kev loj hlob, tshem tawm cov kab mob thiab kab kab mob nyob rau hauv lub sij hawm thiab coj lawv tawm ntawm lub tsev xog paj rau kev puas tsuaj. Nyob rau tib lub sijhawm, xyuam xim rau cov qoob loo tig. Nws yog qhov zoo tshaj kom tsis txhob sib xyaw cov qoob loo cruciferous thiab solanaceous. disinfect lub seedlings ua ntej teeb.
2. Kev tiv thaiv lub cev thiab kev tswj xyuas
Yellow board trapping and killing: dai 30-40 yellow boards in the greenhouse about 10 days after planting to trap and tua whiteflies. Whiteflies tseem tuaj yeem tua kab mob los ntawm kev siv lub tsev cog khoom kub kub tom qab sau qoob. Whiteflies feem ntau tsuas tuaj yeem tiv taus qhov kub siab ntawm 33-35 degree . Qhov kub siab tshaj 40 degree tuaj yeem tua tau whiteflies.
3. Tshuaj tswj
Koj tuaj yeem xaiv abamectin, imidacloprid, dinotefuran, nitenpyram, pymetrozine, fluopyrfuranone, thiab lwm yam. ua ke nrog spirotetramat lossis pyriproxyfen. Ob leeg larvae thiab cov neeg laus tuaj yeem tua tau los ntawm kev txau 2-3 zaug tsis tu ncua, tab sis yuav tsum tau them nyiaj rau lub sijhawm txau.
Lub sij hawm tsim nyog rau kev txau yog ua ntej 9 teev sawv ntxov los yog tom qab 6 teev tsaus ntuj, thaum whitefly kev ua si nquag. Tus nqi ntawm cov tshuaj tsuag dej yuav tsum txaus, thiab cov tshuaj tsuag yuav tsum tau txau tag nrho, tshwj xeeb tshaj yog nyob rau hauv qab ntawm nplooj.
Ua raws li cov haujlwm saum toj no, tsev cog khoom whiteflies tuaj yeem tiv thaiv tau zoo, txo kev puas tsuaj rau cov qoob loo, thiab nce cov qoob loo thiab zoo.
Kuv vam tias yuav muaj txiaj ntsig zoo rau kuv cov phooj ywg, thiab txhua tus tuaj yeem nyiam, sau thiab xa tawm.
