Cucumber yog ibfeem ntaunrov zaub.In txheej txheem ntawm cog cucumbers, ntau yam kab mob yuav inevitably tshwm sim, uas yuav cuam tshuam rau dib txiv hmab txiv ntoo, stems, nplooj, thiab seedlings.Txhawm rau ua kom cov qoob loo ntawm cucumbers, nws yog ib qho tsim nyog yuav tau ua kom cucumbers zoo.Wkaus mom yog cov kab mob ntawm dib thiab lawv txoj kev tswj?Cia wb mus saib ua ke!

1. Daj downy mildew

Ob qho tib si theem yub thiab cov neeg laus cog theem tuaj yeem cuam tshuam, feem ntau ua rau cov nplooj.

Cov tsos mob: Tom qab nplooj raug puas lawm, cov dej-soaked me ntsis tshwm nyob rau hauv thaum pib, thiab cov me ntsis maj mam nthuav, qhia polygonal lub teeb xim av me ntsis.Thaum cov av noo siab, txheej txheej grey-dub tuaj yeem loj hlob rau sab nraub qaum lossis saum npoo ntawm nplooj.Thaum nws loj heev nyob rau theem lig, cov kab mob rupture los yog txuas.

Tshuaj tswj:

Propamocarb hydrochloride , Mancozeb + Dimethomorph,Azoxystrobin, Metalaxyl-M+Propamocarb hydrochloride

2.Txiv lws suavdawbpowdery mildew

Nws tuaj yeem kis tau los ntawm cov yub mus rau theem sau, thiab nplooj yog qhov cuam tshuam loj tshaj plaws, ua raws li petioles thiab stems, thiab cov txiv hmab txiv ntoo tsis cuam tshuam.

Cov tsos mob: Thaum ntxov ntawm tus kab mob, me me dawb ze li ntawm cov hmoov me me tshwm ntawm ob sab ntawm nplooj, thiab muaj ntau nplooj.Tom qab ntawd, nws nthuav mus rau hauv cov npoo tsis pom tseeb thiab cov hmoov dawb tsis tu ncua.Hauv qhov xwm txheej hnyav, tag nrho cov nplooj yog them nrog cov hmoov dawb, thiab nws tig grey nyob rau theem tom qab.Cov kab mob nplooj yog withered thiab daj, tab sis feem ntau tsis poob.Cov tsos mob ntawm petioles thiab stems zoo ib yam li cov nplooj.

Tshuaj tswj:

Pyraclostrobin, Chlorothalonil, Thiophanatemethyl, Propineb

 

3.Txiv lws suavliabpowdery mildew

Cov tsos mob: Feem ntau ua rau cov nplooj ntawm dib nyob rau hauv lub lig kev loj hlob lub sij hawm.Tsaus ntsuab mus rau lub teeb xim av lesions tsim ntawm nplooj.Thaum cov av noo siab, cov kab mob nyias nyias, cov npoo yog dej-soaked, thiab lawv yooj yim tawg.Qhov ntev ntawm cov av noo nyob ntev, qhov yooj yim dua rau lub teeb txiv kab ntxwv pwm kom loj hlob ntawm cov kab mob, uas nthuav tawm sai heev thiab ua rau cov nplooj rot lossis qhuav.

Cov colony yog pib dawb thiab tom qab ntawd tig liab.

Cov tshuaj tiv thaiv:

Iprodione, Azoxystrobin, Chlorothalonil

4.Cucumber blight

Cucumber vine blight feem ntau puas stems thiab nplooj.

Nplooj kab mob: Nyob rau theem pib, muaj ze li ntawm puag ncig lossis tsis xwm yeem lub teeb xim av, qee qhov tsim "V" zoo li ntawm nplooj nplooj sab hauv.Tom qab ntawd, cov kab mob tau yooj yim tawg, lub nplhaib qauv tsis pom tseeb, thiab cov dots dub loj tuaj rau lawv.

Kab mob ntawm stems thiab tendrils: feem ntau nyob rau hauv lub hauv paus los yog nodes ntawm stems, oval mus rau fusiform, me ntsis sunken, oil-soaked lesions tshwm sim, tej zaum overflowing nrog amber resin jelly, thaum tus kab mob yog heev, lub qia ntawm nplooj tig dub, rot, yooj yim. ua txhaum.Nws ua rau yellowing thiab necrosis ntawm nplooj saum toj no qhov txhab, vascular bundles ntawm cov nroj tsuag muaj kab mob zoo li qub thiab tsis hloov xim, thiab cov hauv paus hniav zoo li qub.

Cov tshuaj tiv thaiv:

Azoxystrobin, Difenoconazole

 

5.Cucumber anthracnose

Cucumbers tuaj yeem raug puas tsuaj ntawm ob theem yub thiab cov neeg laus cog theem, feem ntau yog nplooj, tab sis kuj yog cov petioles, stems, thiab melon strips.

Cov yam ntxwv tshwm sim:

Seedling kab mob: Semicircular xim av lesions tshwm nyob rau ntawm ntug ntawm lub cotyledon, nrog dub dots los yog lub teeb liab nplaum teeb meem rau nws, thiab lub hauv paus ntawm qia tig xim av thiab shrinks, ua rau melon seedlings poob.

Kev tshwm sim ntawm cov neeg laus cov nroj tsuag: Cov nplooj tshwm lub teeb daj, dej-soaked, thiab puag ncig lesions thaum pib, thiab ces tig daj xim av nrog daj halos.Thaum qhuav, qhov txhab tawg thiab perforate;Thaum ntub, qhov txhab zais cov xim liab nplaum nplaum.Pib ntawm melon strips: Dej-soaked lub teeb ntsuab qhov txhab raug tsim, uas tom qab ntawd tig mus rau hauv cov xim av tsaus me ntsis sunken puag ncig los yog ze-puag ncig.Nyob rau theem tom ntej, cov txiv hmab txiv ntoo muaj kab mob yog khoov thiab deformed, tawg, thiab cov xim liab nplaum yog tsim thaum ntub dej.

Cov tshuaj tiv thaiv:

Pyraclostrobin, Metiram, Mancozeb, Propineb