2024 Tus sau: Chloe Blomfield | [email protected]. Kawg hloov kho: 2023-12-15 23:55
Pear poob yog dab tsi? Raws li lub npe qhia, nws tsis yog kev kuaj mob zoo siab. Cov kab mob no ua rau cov kab mob pear uas muaj peev xwm poob qis hauv kev noj qab haus huv thiab tuag. Txij li thaum tsis muaj kev kho mob pear poob zoo, koj qhov thawj koom ruam zoo tshaj plaws yog yuav cov nroj tsuag tiv taus thawj qhov chaw. Yog xav paub txog cov tsos mob ntawm tus kab mob pear poob, nyeem rau.
Pear Decline Disease yog dab tsi?
Pear poob yog ib qho mob hnyav, feem ntau tuag pear ntoo kab mob tshwm sim los ntawm phytoplasma hu ua Candidatus Phytoplasma pyri. Nws yog cov kab mob zoo li mycoplasma yam tsis muaj phab ntsa ntawm tes.
Ib tsob ntoo kis tus kab mob no pear poob phytoplasma los ntawm kab hu ua pear psylla. Lub pear psylla nws tus kheej tau kis tus kab mob pear poob phytoplasma los ntawm kev noj cov nplooj ntawm cov ntoo pear. Thaum kis tus kab mob, tus kab mob psylla nyob twj ywm thiab kis tau tus kab mob mus rau lwm cov ntoo ntoo.
Nws tseem muaj peev xwm rau tsob ntoo txiv ntoo kom tau txais pear poob phytoplasma yog tias tsob ntoo muaj kab mob yog grafted rau hauv. Cov kab mob overwinters nyob rau hauv cov hauv paus hniav ntawm cov ntoo uas muaj kab mob los tua dua nyob rau lub caij nplooj ntoos hlav.
Tsis yog txhua hom ntoo txiv ntoo sib npaug sib npaug rau tus kab mob no. Txij li thaum tsis muaj kev kho mob pear poob zoo tsis tau pom,Koj yuav tsum cog hom uas tiv thaiv pear poob phytoplasma.
Xaiv ib tsob ntoo cog qoob loo uas siv cov cag ntoo los ntawm Pyrus communis. Nws txoj kev pheej hmoo ntawm kev ntes cov pear poob phytoplasma muaj tsawg dua rau cov ntoo nrog Asian rootstocks xws li P. ussuriensis, P. serotina los yog P. pyricola.
Lwm cov cag ntoo uas muaj peev xwm muaj nyob. Lawv suav nrog Bartlett seedling, Winter Nelis, Old Home x Farmingdale, thiab Pyrus betulaefolia.
Symptoms of Pear Decline
Pear ntoo grafted rau cov neeg Esxias cov cag ntoo uas raug mob los ntawm pear poob phytoplasma zoo li tawg tam sim ntawd, thaum tua tuag thiab nplooj yob, tig liab, thiab poob. Vim li no, ob peb lub khw muag khoom pear ntau yam siv Asian rootstocks.
Yog tias koj cov txiv pear tau cog rau cov cag ntoo, koj yuav pom qhov poob qis thaum tsob ntoo ntxhov siab rau cov dej lossis cov as-ham. Tsob ntoo ntawm cov cag ntoo siab ntev tuaj yeem pom cov tsos mob me me ntawm cov kab mob pear poob thaum muaj ntau psylla thaum lub caij cog qoob loo.
Nrog kev saib xyuas kom raug, suav nrog cov dej txaus thiab cov khoom noj, cov ntoo ua siab ntev yuav txuas ntxiv tsim cov pears txawm tias tom qab lawv nqa cov phytoplasma. Ua kom cov pej xeem ntawm psylla txo qis cov tsos mob ntawm cov ntoo no.
Pom zoo:
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