1. Cov tsos mob:
Mango anthracnose feem ntau cuam tshuam rau cov tub ntxhais hluas tua, nplooj hluas, paj pob ntseg thiab cov txiv hmab txiv ntoo hluas, cov paj pob ntseg thiab cov txiv hmab txiv ntoo hluas yog qhov tshwj xeeb tshaj yog kis kab mob.
(1) Muaj ntau cov xim daj daj tshwm rau ntawm cov nplooj me, puag ncig los ntawm daj halos, thiab maj mam nthuav mus rau puag ncig, polygonal lossis xim av tsis sib xws, thiab tom qab ntawd tawg thiab perforate.
(2) Cov kab mob uas tshwm sim los ntawm kev puas tsuaj rau nplooj thiab txiv hmab txiv ntoo hluas los ntawm kab yoov tshaj cum thiab nplooj nplooj kuj raug rau tus kab mob no. Cov nplooj me me uas muaj kab mob hnyav heev yog qhov yooj yim rau khoov, nplooj cov lus qhia thiab cov nplooj nplooj feem ntau scorched, thiab cov nplooj muaj kab mob yooj yim poob tawm.
(3) Cov pob dub yog tsim tom qab cov ceg ntoo raug mob, thiab tom qab ntawd maj mam qhuav. Qee qhov me me tshwm sim tom qab paj pob ntseg kis tau, thiab thaum kawg tig dub thiab rot, ua rau hlawv paj thiab txiv hmab txiv ntoo poob.
(4) Cov txiv hmab txiv ntoo muaj kev tiv thaiv kab mob thaum lub sijhawm loj hlob tag nrho. Cov txiv hmab txiv ntoo hluas yog deformed, tig dub thiab poob tawm tom qab kis kab mob. Tom qab cov txiv hmab txiv ntoo loj dua raug puas lawm, cov xim dub-xim av puag ncig yog tsim rau ntawm tev, qhov chaw yog sunken, thiab cov kab mob yog txhav thiab deteriorated. Thaum huab cua ntub, tus kab mob A liab nplaum nplaum loj hlob tuaj.
2. Yog vim li cas:
Ntxiv nrog rau qhov kev puas tsuaj thaum lub sij hawm loj hlob ntawm txiv nkhaus taw, nws tseem ua rau cov txiv hmab txiv ntoo puas thaum lub sij hawm cia thiab thauj mus los, ua rau muaj coob tus txiv hmab txiv ntoo rot. Qhov kub zoo tshaj plaws rau sporulation thiab kev loj hlob thiab kev loj hlob ntawm cov kab mob pathogenic ntawm tus kab mob no yog 22-30 degree ; Cov huab cua tam sim no thiab kev nyab xeeb nyob rau hauv Youjiang District yog qhov tsim nyog tshaj plaws rau kev loj hlob ntawm cov kab mob pathogenic, thiab txiv nkhaus taw kuj nyob rau theem ntawm kev tawg rau cov txiv hmab txiv ntoo hluas, uas tseem raug rau cov kab mob. .
3. Kev tiv thaiv thiab tswj kev ntsuas:
1. Combined trimming:
Txiav tawm ib co kab mob los txo cov kab mob.
2. Tsom ntsoov rau kev tiv thaiv
Txhawm rau tiv thaiv cov tub ntxhais hluas tua, pob ntseg paj thiab cov txiv hmab txiv ntoo hluas kom txo qis cov kab mob hauv thaj teb, tshuaj tsuag cov tshuaj tiv thaiv nyob rau lub sijhawm ntawm hnub ci, nyob rau theem pib ntawm flowering, fruiting thiab tua, thiab nyob rau hauv thaum ntxov theem ntawm cov kab mob, koj muaj peev xwm tiv thaiv cov tub ntxhais hluas tua, paj pob ntseg thiab cov tub ntxhais hluas txiv hmab txiv ntoo. xaiv Amicida, pyraclostrobin, Baitai, Kai Moisturizing, dinconazole wettable hmoov, cov tshuaj siv hloov pauv.
Txau ib zaug ua ntej paj, thiab pib los ntawm theem pib ntawm floret qhib, tshuaj tsuag ib zaug txhua 7 mus rau 10 hnub, thiab tshuaj tsuag 1 mus rau 2 zaug ua ke. Thaum lub sij hawm paj, tshuaj tsuag ib zaug ib lub lim tiam, siv chlorothalonil 600 zaug, 50 feem pua carbendazim 500 zaug, 70 feem pua thiophanate-methyl 800 zaug, 40 feem pua methamphetamine 400 zaug, 25 feem pua Shibaoke EC 1000 zaug kua (paj bud theem), 2. chlorolactide 600 zaug ua kua (hnub los nag). Nyob rau tib lub sijhawm, 0.2 feem pua -0.3 feem pua poov tshuaj dihydrogen phosphate, urea thiab borax paj-preserving thiab txiv hmab txiv ntoo-preserving tus neeg sawv cev yog txau rau ntawm nplooj txhua txhua 7-10 hnub rau 2-3 zaug sib law liag. , uas tuaj yeem txhim kho cov kab mob tiv thaiv ntawm cov nroj tsuag.
3. Thaum lub sij hawm tshwm sim, tshuaj tsuag ib zaug ib nrab ib hlis, thiab cov tshuaj tua kab hauv qab no tuaj yeem siv rau hauv kev sib hloov: 70 feem pua thiophanate-methyl 700 zaug, 1:1:100 Bordeaux sib tov, 75% chlorothalonil 600 zaug, 25% Shibaoke EC 800 zaug ua kua, 500 zaug kua ntawm 20 feem pua chlorinated tooj liab lacquer roj. Tom qab sau qoob, muab cov txiv hmab txiv ntoo tso rau hauv 70 feem pua thiophanate-methyl 1000 zaug tov (dej kub yog 52-54 degree) rau 15 feeb, khaws nws thiab muab tso rau hauv qhov chaw cua kom qhuav, los yog cia li ob hnub rau cia cov txiv hmab txiv ntoo tawm hws, ces siv ib lub thawv los yog Xyoob pob ntim, los yog txav mus rau qhov kub thiab txias tswj qhov chaw cia.
