Gumoza ili smeđa trulež korjenova vrata
Agrumi - štetnici

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Biology
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Vocational training
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Hard
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1.
FLASHCARD QUESTION
Front
Back
Phytophthora citrophthora
i
P. nicotianae
2.
FLASHCARD QUESTION
Front
Gumoza, ili smeđa trulež vrata, je ozbiljna x________ bolest koja pogađa agrume i druge biljke, uzrokovana ______ iz roda P__________________.
Back
gljivična,
gljivicama,
Phytophthora
3.
FLASHCARD QUESTION
Front
Simptomi gumoze ili smeđe truleži vrata:
a)__________
b)_________
c)_________
d)_________
Back
a)Promjena boje i truljenje kore: Na mjestu zaraze kora postaje smeđa, vlažna i trula.
b)Izlučivanje gume: Iz oštećenih mjesta izlazi ljepljiva, smeđa smolasta tekućina (guma).
c)Opadanje lišća i sušenje grana: U naprednim fazama bolesti, lišće žuti i otpada, a grane se suše.
d)Uginuće biljke: Ako se bolest ne liječi
4.
FLASHCARD QUESTION
Front
Kao podloga, najotporniji je limun, dok je podloga gorka naranča najosjetljivija.
T/N
Back
N,
Kao podloga, najotpornija je gorka naranča, dok je podloga limun najosjetljivija.
5.
FLASHCARD QUESTION
Front
Uzroci gumoze su najčešće u:
1._______
2._______
3.________
4.________
Back
1.predubokoj sadnji,
2.prevlažnom i teškom tlu,
3.u uporabi nezrelog organskog gnojiva
4. ozljedama zaraženim alatom.
6.
FLASHCARD QUESTION
Front
Mjere suzbijanja gumoze:
Back
a) potpuno se odstranjuje zaražena kora te se zahvaća i dio zdrave kore
b)• Rana se premazuje bordoškom juhom (3%) ili bakrenim vapnom (3%). Dobri rezultati u ranom stadiju bolesti se postižu preparatom Ridomil. •
c) Mlada stabla se liječe tokom cijele godine, a rodna samo poslije berbe.
d)• Ako se bolest ne izliječi stablo se vadi iz nasada i spaljuje, a zemlja na kojoj je zaraženo stablo raslo se više ne smije koristiti za daljnji uzgoj agruma.
7.
FLASHCARD QUESTION
Front
Trulež korijena
Back
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