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Acta Agriculturae Slovenica
Article . 2005 . Peer-reviewed
License: CC BY
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Acta Agriculturae Slovenica
Article . 2005
Data sources: DOAJ
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Poškodovanost kostanjevih listov zaradi kostanjevega listnega zavrtača (Cameraria ohridella Deschka&Dimić)

Authors: Pivk, Alenka; Milevoj, Lea;

Poškodovanost kostanjevih listov zaradi kostanjevega listnega zavrtača (Cameraria ohridella Deschka&Dimić)

Abstract

Za potrebe načrtovanja varstva kostanjevih dreves smo v letih 2003 in 2004 ocenjevali poškodbe, ki jih povzročajo gosenice kostanjevega listnega zavrtača (Cameraria ohridella Deschka&Dimić) na listih divjega kostanja (Aesculus hippocastanum L.) v parku Tivoli v Ljubljani. V letu 2003 smo določili stopnjo napadenosti dreves s pomočjo računalniškega programa, v letu 2004 pa smo se odločili za vizualno ocenjevanje napadenosti listov. Liste smo glede na delež izvrtin uvrstili v osem razredov. Rezultati poskusa so pokazali, da so bila drevesa v letu 2003 bolj napadena s kostanjevim listnim zavrtačem kot v naslednjem letu. Površina izvrtin v avgustu 2003 je pri več kot 80% listov v povprečju zavzela od 10% do 50% njihove celotne površine, v septembru istega leta pa od 50% do 100%. V letu 2004 so bili listi napadeni s kostanjevim listnim zavrtačem v obeh mesecih pod 25%, vendar smo opazili, da so bili istočasno okuženi z listno sušico divjega kostanja (Guignardia aesculi Peck./Stev./) tudi do 50%. Pri spremljanju napadenosti listov glede na starost kostanjevih dreves v letu 2003 smo ugotovili, da obstajajo statistično značilne razlike med obravnavanji. Podatki kažejo, da so bila junija najmlajša drevesa manj napadena, v juliju pa bolj napadena od ostalih dveh obravnavanj. V avgustu in septembru so bila drevesa srednje starosti manj napadena od najmlajših in najstarejših dreves, a hkrati močno okužena z glivo Guignardia aesculi.

Country
Slovenia
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Keywords

horse chestnut leafminer, seasonal variation, poškodbe listov, ljubljana, S, stopnja napadenosti, Agriculture, foliage, aesculus, leaf damage, park tivoli, info:eu-repo/classification/udc/635.9:632.78, cameraria ohridella, park Tivoli, kostanjev listni zavrtač, Ljubljana, infestation, public parks

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
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