2024 Tus sau: Chloe Blomfield | [email protected]. Kawg hloov kho: 2023-12-15 23:55
Citrus yog ib pawg loj tshaj plaws ntawm cov txiv hmab txiv ntoo uas muaj ntau. Cov ntxhiab tsw thiab qab zib yog txaus siab sib npaug hauv cov zaub mov, ua kua txiv hmab txiv ntoo, los yog noj tshiab. Hmoov tsis zoo, lawv txhua tus raug raug rau ntau yam kab mob, ntau yam uas yog fungal. Diplodia stem-kawg rot ntawm citrus yog ib qho ntawm feem ntau cov kab mob tom qab sau qoob. Nws muaj ntau yam hauv Florida cov qoob loo thiab lwm qhov. Citrus qia-kawg rot tuaj yeem rhuav tshem cov qoob loo muaj txiaj ntsig yog tias tsis tiv thaiv los ntawm kev saib xyuas zoo tom qab sau qoob.
Dab tsi yog Diplodia Stem-end Rot ntawm Citrus?
Thaum lub sijhawm tawg paj thiab fruiting, citrus ntoo tuaj yeem tsim teeb meem fungal ntau, tab sis cov teeb meem no kuj tshwm sim thaum cov txiv hmab txiv ntoo tau sau thiab khaws cia. Cov kab mob no yog qhov phem tshaj plaws vim tias koj yuav tsum saib xyuas txhua yam kev ua haujlwm nyuaj mus pov tseg. Diplodia citrus rot ua rau lwj ntawm cov txiv hmab txiv ntoo. Nws kis tau nyob rau hauv ntim citrus thiab tuaj yeem ua rau muaj kev puas tsuaj loj.
qia-kawg rot ntawm citrus tshwm sim feem ntau hauv cheeb tsam subtropical. Lub luag hauj lwm ntawm lub cev yog ib tug fungus, Lasiodiplodia theobromae, uas yog harbored ntawm stems ntawm tsob ntoo thiab pauv mus rau cov txiv hmab txiv ntoo. Nws tshwm sim rau txhua hom citrus nyob rau hauv qhov kub thiab av noo. Cov fungus yog latent ntawm lub txiv hmab txiv ntoo khawm kom txog thaum sau qhov twg nwsrov qhib dua.
Citrus nrog diplodia qia-kawg rot zoo li feem ntau tshwm sim uas muaj cov ntoo tuag ntau ntawm cov ntoo, dej nag thiab kub, thiab qhov twg tsis siv cov tshuaj fungicides tsis tu ncua. Thaum cov txiv hmab txiv ntoo nyob rau hauv cia, citrus tsis kho tuaj yeem ua kom lwj sai sai.
Cov cim ntawm Diplodia Citrus Rot
Tus kab mob nkag mus rau cov txiv hmab txiv ntoo uas khawm thiab txiv hmab txiv ntoo txuas. Nyob rau ntawm qhov chaw no, discoloration yuav tshwm sim thiab sai sai mus rau lwj. Citrus qia-kawg rot yuav dhau los ntawm lub pob kom cuam tshuam rau daim tawv nqaij thiab nqaij ntawm cov txiv hmab txiv ntoo. Tus kab mob yuav luag zoo li xim av bruises ntawm tev ntawm citrus.
Discoloration raws rau hauv cov txiv hmab txiv ntoo. Cov kev tshawb fawb qhia tias tus kab mob no tshwm sim ntau dua thaum kev tsis huv tsis txaus thiab thaum lub sij hawm kawm ntawv ntev, thaum daim tawv nqaij ntawm citrus raug yuam kom xim.
Minimizing qia kawg rot ntawm citrus
Cov kws tshaj lij pom zoo kom txo lub sijhawm cov txiv hmab txiv ntoo raug rau cov tshuaj ethylene ntsuab. Qee cov fungicides kuj tau siv tom qab sau qoob los txo qhov tshwm sim ntawm qia-kawg rot thiab lwm yam fungi. Lwm cov lus pom zoo suav nrog:
- Tshem cov ntoo tuag thiab kab mob ntawm tsob ntoo.
- Cia txiv hmab txiv ntoo siav rau tsob ntoo ntev dua.
- Txau ntoo nrog tshuaj tua kab mob ua ntej sau los yog drench cov txiv hmab txiv ntoo hauv fungicide tom qab sau.
- Lub sijhawm ntsuas qis dua thiab siv ethylene tsawg dua.
- Khaws txiv hmab txiv ntoo ntawm 50 degrees F. (10 C.).
Pom zoo:
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