Subcutaneous Viral Chaw Ntawm Pear

2024 Tus sau: Gavin MacAdam | [email protected]. Kawg hloov kho: 2023-12-16 13:40

Subcutaneous viral spotting ntawm pears ua rau txo qis hauv pear tawm los. Ib qho ntxiv, quince nrog cov ntoo kua (feem ntau nyob hauv daim ntawv latent) kuj tuaj yeem raug kev txom nyem los ntawm qhov mob tsis zoo no. Txiv hmab txiv ntoo ntawm pears nrog tawv thiab convex formations yog qhov tshwm sim ntawm lawv swb los ntawm cov kab mob subcutaneous. Nws feem ntau tsis tuaj yeem tshem tawm qhov xwm txheej no, yog li ntawd, yuav tsum tau them nyiaj tshwj xeeb rau kev tiv thaiv kev tiv thaiv txhawm rau tiv thaiv qhov tshwm sim ntawm qhov mob tsis zoo

Ob peb lo lus hais txog tus kab mob

Thaum kis tus kab mob subcutaneous, pom nyob rau hauv qhov tob heev ntawm cov txiv hmab txiv ntoo ntawm cov txiv hmab txiv ntoo hluas, ntau pawg ntawm scleroids tau tsim - tawv thiab tsis qab kiag li. Hauv thaj chaw cuam tshuam, kev loj hlob ntawm pear pulp tam sim nres, thiab nrog kev loj hlob ntxiv ntawm cov txiv hmab txiv ntoo, dents tsim rau lawv. Vim li ntawd, cov txiv hmab txiv ntoo zoo li tsis zoo. Qhov ntau, nrog rau qhov zoo ntawm kev sau los ntawm cov ntoo muaj kab mob, poob qis, thiab qee zaum lawv cov txiv hmab txiv ntoo nres tag nrho.

Cov ntoo ntawm tsob ntoo cuam tshuam los ntawm subcutaneous spotting ntawm pears feem ntau tau txais cov xim mosaic, ua raws los ntawm kev tuag ntawm suav tsis txheeb mosaic specks. Cov kab tawg ntawm cov ceg ntoo thiab cov tawv ntoo ntawm cov ntoo. Cov ntoo kis tau qaug zog thiab feem ntau khov tawm thaum lub caij ntuj no.

Ua rau cov kab mob subcutaneous pom tus kab mob txhim kho hauv cov cell ntawm cov kab mob muaj sia. Thiab tus kab mob no sib kis los ntawm txhua yam kev nqus kab (feem ntau aphids), nrog cov kua ntoo ntawm cov nroj tsuag muaj kab mob, cov zaub ntsuab, thiab tseem thaum lub sij hawm txiav cov kab mob uas raug txiav rau ntawm tsob ntoo noj qab nyob zoo. Qhov tsis muaj tshuaj tua kab nruab nrab ntawm lub vaj siv thaum txiav tawm ntau yam qoob loo zoo nyob rau tib lub sijhawm vim cov qoob loo muaj mob kuj ua rau kis tus kab mob tsis zoo.

Ntawm cov txiv hmab txiv ntoo ntau yam ua rau pom cov kab mob subcutaneous, ib tus tuaj yeem sau tseg hauv qab no: Williams, Klappa, Lyubimitsa thiab Bere Boek.

Subcutaneous viral spotting ntawm pears tau nthuav dav hauv yuav luag txhua lub tebchaws European.

Yuav ua li cas sib ntaus

Thaum cog pears, nws yog ib qho tseem ceeb heev uas yuav tsum tau siv cov khoom cog kom muaj kev noj qab haus huv, nrog rau ua raws cov lus pom zoo cais cais tawm. Yuav kom tsis txhob cia tus kab mob sib kis, cov nroj tsuag yuav tsum tau kho kom raws sijhawm tiv thaiv ntau yam kab noj.

Ua tib zoo, tsawg kawg ob zaug, nws yog qhov yuav tsum tau tshuaj xyuas txhua tsob ntoo kom pom muaj cov kab mob subcutaneous pom: qhov no feem ntau ua tiav thaum pib ntawm lub caij ntuj sov lossis lub caij nplooj ntoo hlav thaum ntxov, ntxiv rau lub caij nplooj zeeg, kwv yees li ib hlis ua ntej nplooj pib poob los ntawm cov ntoo.

Ua ntej lub paj tawg, nws raug nquahu kom tsuag ntoo nrog Nitrafen ib zaug, thiab tam sim ntawd tom qab paj, nrog 1% Bordeaux kua. Txau nrog Bordeaux kua yog rov ua dua tom qab kaum tsib mus rau nees nkaum hnub. Ua ntej paj, nws tseem raug tso cai tsuag nrog 0.4% zineb lossis 0.4% tooj liab oxychloride. Thiab txog ib zaug txhua tsib xyoos, cov kws paub dhau los tau qhia kom tsuag ntoo nrog tooj liab lossis hlau sulfate.

Pears nrog cov cim ntawm tus kab mob pom ntawm lawv raug tshem tawm thiab hlawv tam sim ntawd. Cov nplooj poob nyob rau lub caij nplooj zeeg raug kho nrog tshuaj urea (7%), thiab thaum lub caij nplooj ntoo hlav lawv raug faus rau hauv av. Thiab txhawm rau txhawm rau txo qis cov peev txheej ntawm kev kis tus kab mob, cov nplooj yuav tsum tau raked rau hauv pawg, hlawv lossis tso rau hauv cov quav, hloov pauv nrog txheej txheej hauv ntiaj teb kaum rau kaum tsib centimeters.

Nws tseem yuav tsum tau hais txog qhov teeb meem ntawm kev tawm tsam ntau yam kab mob los ntawm kev ua kom sov cov nroj tsuag muaj kab mob tam sim no tab tom ua haujlwm. Tab sis, hmoov tsis, kev tshawb fawb tseem tsis tau muaj cov txheej txheem tseem ceeb ntawm kev cuam tshuam nrog cov kab mob tsis zoo li cov kab mob subcutaneous pom ntawm pear.