Botrythiasis Ntawm Gladioli

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

Botrythiosis yog kab mob txaus ntshai heev uas ua rau muaj neeg tuag coob ntawm gladiolus corms ze rau qhov kawg ntawm lub caij. Qhov no feem ntau tshwm sim thaum lawv qhuav los yog lub caij ntuj no cia. Thiab qhov kev kov yeej loj ntawm cov paj ntxim nyiam no feem ntau pom nyob rau ib nrab ntawm lub caij ntuj sov - cov av noo nce nyob rau lub sijhawm no, thiab tus pas ntsuas kub poob mus rau kaum tsib txog kaum yim degrees. Txhawm rau kom tsis txhob poob paj zoo nkauj, nws yog ib qho tseem ceeb kom pib tawm tsam qhov phom sij txaus ntshai no sai li sai tau

Ob peb lo lus hais txog tus kab mob

Cov yam ntxwv tshwj xeeb tshaj plaws ntawm kev puas tsuaj botrythiasis yog qhov pom ntawm cov nplooj ntawm gladiolus, uas cov duab oval lossis sib npaug ntawm qhov ntau qhov sib txawv, pleev xim rau hauv lub suab xim daj, pib tsim. Thiab hauv cov chaw uas muaj cov kab mob tsis zoo raug nthuav tawm, cov dej me me ua rau ntawm perianths, uas dhau los ua xim av tom qab qee lub sijhawm. Tsis tas li ntawd, thaum huab cua ntub txaus, cov paj zoo nkauj ntawm cov paj zoo nkauj pib yaim, thiab cov nplaim paj npleg sporulation tshwm rau lawv sai dua. Qhov no, nyeg, ua rau kev txhim kho ntawm grey rot ntawm lub caj dab, thiab vim li ntawd, cov qia tawg thiab cov nroj tsuag tuag.

Tsis tas li ntawd, kev kis tus kabmob, kis mus los ntawm cov hlab ntsha ntawm gladioli, dhau los ntawm lawv cov aerial qhov chaw thiab mus rau corms. Cov cheeb tsam uas kis tau tam sim ntawd tig xim av, thaum lawv sib txawv heev los ntawm cov ntaub so ntswg noj qab haus huv ntawm paj. Cov corms maj mam ploj mus, thiab nyob ze lawv saum, qhov pom ntawm cov xim av nkag mus tob tau pom. Cov corms ntawm corms tau maj mam ua kom tiav tag nrho, thiab cov corms dhau los zoo li bagels. Lawv tig mus sai sai rau mos, spongy, cov tawv nqaij brownish, tab sis corm teev tsis hloov xim, thiab yog li ntawd lawv tuaj yeem ua rau muaj kev xav zoo. Txawm li cas los xij, yog tias koj coj lawv mus rau hauv koj txhais tes, qhov tsis muaj dab tsi thiab lub teeb yuav hnov tau yooj yim.

Hauv cov chaw khaws khoom ntub, tag nrho cov zes ntawm cov ntoo cotten npog nrog cov kab mob grey rot tuaj yeem tshwm sim qee zaum. Thiab txawm hais tias thaj chaw ntawm rot ntawm lawv tsis tseem ceeb, cov corms tseem yuav tsis tsim nyog rau cog, txij li muaj zog tsis muaj zog thiab sai sai tuag tua ib txwm tsim los ntawm lawv.

Tus neeg sawv cev ua rau botrytosis yog cov kab mob me me hu ua Botrytis gifdioli, koom nrog cov genus Botrytis. Cov kab mob sib kis no muaj peev xwm tsim tau ntev sclerotia hauv cov av, uas, nyob rau hauv cov xwm txheej zoo, nquag txhim kho ntawm cov nroj tsuag lwj. Qhov tshwm sim ntawm kev ua haujlwm zoo li no yog kev tsim cov spores, nqa los ntawm cua hla qhov deb. Ua ke nrog cov dej noo, cov kab tsim nyob ntawm cov nplooj thiab cov qia nrog paj, qhov uas lawv pib nquag cog, nkag mus rau hauv cov nqaij ntawm cov nroj tsuag zoo nkauj. Kev kis tus kab mob ib txwm tshwm sim los ntawm saum toj mus rau hauv qab, uas yog, los ntawm cov nplooj nrog cov qia, cov kab mob maj mam nqis mus rau corms.

Yuav ua li cas sib ntaus

Txhawm rau tiv thaiv botrythiosis, nws raug nquahu kom ua nruj ua raws cov cai ntawm kev cog qoob loo thiab tshem tawm txhua tsob ntoo seem ntawm qhov chaw. Thiab cov corms npaj rau cog, uas pom cov cim ntawm rot, yuav tsum tau muab pov tseg thiab tam sim ntawd puas. Ib qho ntxiv, cov khoom cog yuav tsum tsis txhob raug cov khoom puas.

Thaum lub caij cog qoob loo, thiab nyob rau ib nrab ntawm lub caij ntuj sov tshwj xeeb, txhua kaum txog kaum tsib hnub nws yuav tsum tau nqa tawm cov tshuaj tiv thaiv kab mob txau nrog tooj liab-xab npum sib xyaw (20 g ntawm xab npum ntsuab thiab 1 g ntawm tooj liab sulfate) lossis Bordeaux kua ntawm qhov concentration ntawm 1-1.5%.

Corms yuav tsum tau sau sai li sai tau. Tom qab ntxuav, lawv yuav tsum tau ntxuav, thiab tom qab ntawd kho nrog tshuaj "Fundazole" (0.2%) thiab qhuav tam sim ntawd rau tsib mus rau xya hnub ntawm qhov kub ntawm nees nkaum tsib mus rau peb caug degrees. Nws tsis yooj yim sua kom tso corms ntawm chav sov - botrythiosis hauv qhov no tuaj yeem pib ua tiav thiab rhuav tshem lawv sai. Thiab nws yog qhov tsim nyog los khaws cov corms qhuav hauv chav qhuav.