Kev noj qab nyob zoo magnolias tsis tshua muaj kev cuam tshuam los ntawm cov kab mob fungal. Fungi, tshwj xeeb tshaj yog peb tau hais hauv cov ntawv nyeem, feem ntau nkag mus rau cov ntoo uas tsis muaj zog lossis raug mob (piv txwv li los ntawm cov cuab yeej tsis huv pruning). Nco ntsoov kho cov kab mob fungal kom sai li sai tau, vim tias cov kab mob ua rau cov magnolia tsis muaj zog thiab tuaj yeem ua rau nws tuag.
Cov kab mob fungal twg tuaj yeem cuam tshuam rau magnolias?
Magnolias tuaj yeem cuam tshuam los ntawm powdery mildew, downy mildew, vermilion fungus (Nectria cinnabarina) thiab grey pwm (Botrytis). Cov kev kho mob muaj xws li kev kho mob hauv tsev, tshuaj tua kab mob tooj liab, kev siv dav dav ntawm cov chaw muaj kab mob thiab cov tshuaj muaj sulfur-muaj fungicides.
Powdery and downy mildew
Yog tias koj pom ib qho greyish lossis dawb txheej ntawm ob sab saum toj thiab hauv qab ntawm nplooj, nws yog cov kab mob mildew. Muaj ob qhov txawv ntawm qhov no. Powdery mildew tseem hu ua "cov huab cua ncaj ncees fungus" vim nws feem ntau tshwm rau hnub sov thiab qhuav. Downy mildew, ntawm qhov tod tes, nyiam huab cua txias dua thiab ntub dej. Mildew tuaj yeem kho tau zoo nrog cov tshuaj hauv tsev (xws li qej lossis nettle decoction); yog tias muaj kab mob hnyav, cov tshuaj tua kab mob uas muaj tooj liab tuaj yeem pab tau.
Nectria cinnabarina (Vermilion Pustule Mushroom)
Cov kab mob fungal no cuam tshuam rau cov ceg ntoo thiab cov ceg ntoo thiab feem ntau yog qhia los ntawm cov cuab yeej tsis huv pruning. Koj tuaj yeem paub txog kev kis kab mob los ntawm cov txiv kab ntxwv-liab lossis liab liab me ntsis ntawm cov ceg. Nectria cinnabarina yog qhov txaus ntshai vim tias cov fungus qhia co toxins rau hauv cov nroj tsuag cov metabolism, ua rau nws tsis muaj zog thiab ua rau nws tuag. Nws feem ntau tshwm sim thaum tsis muaj dej lossis muaj cua sov. Txiav cov chaw cuam tshuam zoo rov qab mus rau ntoo noj qab haus huv thiab pov tseg cov txiav tam sim ntawd - lawv tseem kis tau rau lwm cov nroj tsuag.
Botrytis (muab grey)
Botrytis, tseem hu ua grey rot lossis grey pwm rot, tshwj xeeb tshaj yog insidious. Nws tawm tsam yuav luag txhua qhov chaw ntawm cov nroj tsuag los ntawm cov hauv paus hniav mus rau nplooj kawg thiab txawm tias cov txiv hmab txiv ntoo, pub tsis tau tsuas yog nyob rau hauv lub neej tab sis kuj rau cov khoom tuag. Txawm li cas los xij, cov fungus nyiam tawm tsam (yog tias ib tus tuaj yeem hais txog cov kab mob fungus) cov tawv ntoo ntawm cov tub ntxhais hluas tua nrog rau nplooj thiab paj buds. Tsob ntoo zoo li nws yog npog nrog ib tug grey-dawb ntaub pua plag - uas nws yog, vim hais tias nws yog ib tug ntaub pua plag ntawm fungi uas kis tau sai heev. Tshem tag nrho cov cuam tshuam ntawm cov nroj tsuag thiab khaws cia rau hauv ib lub hnab yas kaw kom nruj. Tom qab ntawd lossis yog tias muaj kab mob hnyav dhau lawm, xaiv cov tshuaj tua kab mob uas muaj sulfur (€ 11.00 ntawm Amazon), piv txwv li nrog cov khoom xyaw nquag fludioxonil.
Tips & Tricks
Txij thaum kev tiv thaiv tseem zoo dua li kev kho, tsuas yog txiav koj cov magnolia nrog cov cuab yeej txiav kom huv si thiab tom qab ntawd muab lub qhov txhab nrog tsob ntoo. Tsis tas li ntawd, tshem cov nroj tsuag tuag lossis kab mob tam sim ntawd kom cov nroj tsuag muaj zog.
