Liab rot yog ib qho tseem ceeb cia kab mob ntawm qos yaj ywm.Nws yog tshwm sim los ntawm cov av-borne pathogen Phytophthora, Phytophthora, thiab muaj nyob rau hauv cov qos loj hlob nyob ib ncig ntawm lub ntiaj teb no.
Cov kab mob no rov ua dua tshiab hauv cov av saturated, yog li tus kab mob feem ntau cuam tshuam nrog cov teb qis lossis cov dej tsis zoo.Qhov tshwm sim ntawm tus kab mob yog siab tshaj ntawm qhov kub ntawm 70 ° F thiab 85 ° F.
Tej zaum koj yuav tsis pom cov liab rot ua ntej sau los yog tuber cia, tab sis nws pib hauv teb.Cov kab mob feem ntau tshwm sim los ntawm ko taw, tab sis lawv tuaj yeem tshwm sim hauv qhov muag lossis qhov txhab.Pink rot kuj tseem kis tau los ntawm tubers mus rau tubers thaum khaws cia.
Zoo li cov kab mob lig blight (Phytophthora infestans) thiab to (Pythium lethal), cov kab mob liab liab yog cov kab mob zoo li oomycete, tsis yog "tiag" fungus.
Vim li cas peb yuav tsum saib xyuas?Vim hais tias tshuaj tswj cov kab mob fungal feem ntau tsis siv rau oomycetes.Qhov no txwv cov kev xaiv tshuaj lom neeg.
Feem ntau siv oomycete fungicides rau kev kho mob liab rot yog mefenfloxacin (xws li Ridomil Kub los ntawm Syngenta, Ultra Flourish los ntawm Nuffam) thiab metalaxyl (xws li MetaStar los ntawm LG Life Sciences).Metalaxyl tseem hu ua metalaxyl-M, uas yog tshuaj zoo ib yam li metalaxyl.
Daim ntawv lo ntawm phosphoric acid implies ntau daim ntawv thov lub sij hawm thiab txoj kev.Nyob rau hauv Pacific Northwest, peb pom zoo kom peb mus rau plaub nplooj ntawv thov, pib nrog qhov loj ntawm tuber thiab qhov loj ntawm lub ces kaum.
Phosphoric acid kuj tseem siv tau ua kev kho mob tom qab sau qoob loo tom qab cov tubers nkag rau hauv cia.Lwm cov fungicides siv los tswj cov kab liab liab yog fentrazone (piv txwv li, Ranman los ntawm Summit Agro), oxatipyrine (piv txwv li, Orondis los ntawm Syngenta), thiab flufentrazone (piv txwv li, Valent USA Presidio).
Nyeem cov khoom lag luam kom zoo thiab sab laj nrog cov kws tshaj lij hauv zos txog tus nqi zoo tshaj plaws thiab lub sijhawm teem sijhawm hauv koj cheeb tsam.
Hmoov tsis zoo, qee qhov Rhodopseudomonas tiv taus metalaxyl.Tshuaj tiv thaiv tau raug lees paub hauv thaj chaw cog qoob loo hauv Tebchaws Meskas thiab Canada.Qhov no txhais tau hais tias qee tus neeg cog qoob loo yuav tsum xav txog lwm txoj hauv kev los tswj cov kab liab liab, xws li daim ntawv thov ntawm phosphoric acid.
Yuav ua li cas koj paub yog tias muaj metalaxyl-resistant liab rot cais nyob rau hauv koj lub teb?Xa cov qauv tuber mus rau qhov chaw kuaj mob cog thiab hais kom lawv ua ib qho kev sim metalaxyl rhiab heev - lub tuber yuav tsum pom cov tsos mob ntawm liab rot.
Qee qhov chaw tau raug soj ntsuam los txiav txim seb qhov tshwm sim ntawm cov tshuaj tiv thaiv kab mob liab rot.Peb yuav ua ib daim ntawv ntsuam xyuas xyoo no hauv Washington, Oregon thiab Idaho.
Peb thov kom cov neeg cog qoob loo hauv Pacific Northwest nrhiav cov tsos mob ntawm cov paj liab rot thaum sau los yog tshuaj xyuas cia, thiab yog tias pom, xa tuaj rau peb.Qhov kev pabcuam no yog pub dawb, vim tias tus nqi ntawm kev xeem yog them los ntawm kev pabcuam los ntawm Northwest Potato Research Association.
Carrie Huffman Wohleb yog tus kws tshaj lij / tus kws tshaj lij hauv cheeb tsam hauv qos yaj ywm, zaub thiab noob qoob loo ntawm Washington State University.Saib tag nrho cov neeg sau zaj dab neeg ntawm no.