1. Infestation intensity by the invasive oak lace bug, Corythucha arcuata (Say) in mixed and pure oak standsGernot Hoch, Alex Stemmelen, Eötvös Csaba Béla, Werner Hinterstoisser, Miran Lanšćak, Srđan Stojnić, Máté Tóth, Marjana Westergren, Simon Zidar, Milica Zlatković, Nikola Zoric, Maarten De Groot, 2023, original scientific article Abstract: There has been accumulating evidence for effects of tree species composition on herbivory with many examples of lower damage by specialist feeders in tree species rich forests. In a joint study in five Central and Southeastern European countries, we studied the effect of tree species richness on infestation intensity of the oak lace bug, Corythucha arcuata (Say) (Heteroptera, Tingidae), an invasive pest on oak trees that has spread rapidly across the Balkan Peninsula and Central Europe. Intensity of infestation by C. arcuata on oaks was assessed on three or four study plots with high (pure stands) and three or four plots with low percentage of oak (mixed stands) in each country. Ordinal regression analysis showed that intensity of infestation of trees by C. arcuata differed between countries; no significant effect of stand type (mixed or pure) on infestation levels was detected. When analysing the percentage of trees in the highest infestation class, stand type had a significant effect with more intensive infestation in pure stands. We conclude that mixed stands will not prevent severe infestation but may help mitigating the impact of established C. arcuata populations.
Keywords: associational resistance, Corythucha arcuata, diversity, host tree concentration, invasive forest pest
Published in DiRROS: 14.11.2023; Views: 95; Downloads: 52
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3. Regionalno srečanje strokovnjakov varstva gozdov na “Forest Protection Colloquim” na Dunaju, 21.-22. marec 2023Simon Zidar, Eva Groznik, 2023, popular article Keywords: srečanja, Ips typographus, osmerozobi smrekov lubadar, Agrilus, krasnik, Corythucha arcuata, hrastova čipkarka
Published in DiRROS: 17.05.2023; Views: 255; Downloads: 101
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4. Ukrepanje ob sumu pojava karantenskih škodljivih organizmov v Kočevju – simulacijska vaja v živoEva Groznik, Simon Zidar, Maarten De Groot, Nikica Ogris, Katja Kunc, Barbara Piškur, 2022, popular article Keywords: karantenski škodljivi organizmi, ukrepanje, simulacijska vaja
Published in DiRROS: 20.02.2023; Views: 362; Downloads: 40
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5. Prvi koraki vzpostavitve Centra za semenarstvo, drevesničarstvo in varstvo gozdovSimon Zidar, Barbara Piškur, Hojka Kraigher, Tjaša Baloh, Primož Simončič, 2022, popular article Keywords: Center za semenarstvo, drevesničarstvo in varstvo gozdov, gozdarstvo, raziskovanje
Published in DiRROS: 20.02.2023; Views: 339; Downloads: 55
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