Canopy recovery of pedunculate oak, Turkey oak and beech trees after severe defoliation by gypsy moth (Lymantria dispar): Case study from Western Hungary

Forestry Journal Pub Date : 2015-09-01 DOI:10.1515/FORJ-2015-0022

G. Csóka, Zoltán Pödör, G. Nagy, A. Hirka

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引用次数: 10

Abstract

Abstract We investigated the canopy recovery of 3 tree species (pedunculate oak, Turkey oak, European beech) at two locations in the Veszprém county (Western Hungary) after severe defoliation by gypsy moth caterpillars in the spring of 2005. The Turkey oak has evidently the best recovery potential, and it almost completely replaced the lost foliage in 4 months. The pedunculate oak and beech needed 2 years to reach the same level of recovery. The pedunculate oak suffered from a heavy infection of Microsphaera alphitoides after defoliation and it probably slowed down its recovery. Neither the presence of Agrilus biguttatus in the oak plot nor the appearance of Agrilus viridis in the beech plot was observed during the study period. Population density of the buprestid Coraebus floerentinus showed a considerable increase in the oak plot, but remained under the damage level. Neither other harmful appearance of other pests nor significant tree mortality were observed within 4 years from the defoliation. These results provide information for the evaluation of longer term influences of the gypsy moth defoliation and may support the decisions concerning pest control.

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舞毒蛾(Lymantria dispar)严重落叶后带梗栎树、土耳其栎树和山毛榉树的冠层恢复:匈牙利西部的案例研究

摘要/ Abstract摘要:2005年春季，在匈牙利西部veszpracimm县，我们调查了舞毒蛾毛虫严重落叶后3种树种(有梗栎、土耳其栎和欧洲山毛榉)的冠层恢复情况。土耳其栎恢复潜力最大，4个月内几乎完全恢复。有花序的橡树和山毛榉需要2年才能达到相同的恢复水平。有花序的栎树在落叶后遭受了严重的微球蚜感染，可能减缓了其恢复速度。在研究期间，既没有观察到在栎树样地出现长尾蚜，也没有观察到在山毛榉样地出现绿尾蚜。在栎树样地，花冠蝇种群密度显著增加，但仍低于危害水平。在落叶后的4年内，没有观察到其他有害害虫的出现，也没有观察到树木的显著死亡。这些结果为舞毒蛾落叶的长期影响评价提供了信息，并可能支持有关害虫防治的决策。

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来源期刊

Forestry Journal

自引率

0.00%

发文量

审稿时长

4 weeks

期刊介绍： Central European Forestry Journal (published as Lesnícky Èasopis - Forestry Journal until 2016) publishes novel science originating from research in forestry and related braches. Central European Forestry Journal is a professional peer-reviewed scientific journal published 4-time a year. The journal contains original papers and review papers of basic and applied research from all fields of forestry and related disciplines. The editorial office accepts the manuscripts within the focus of the journal exclusively in English language. The journal does not have article processing charges (APCs) nor article submission charges. Central European Forestry Journal, abbreviation: Cent. Eur. For. J., publishes original papers and review papers of basic and applied research from all fields of forestry and related scientific areas. The journal focuses on forestry issues relevant for Europe, primarily Central European regions. Original works and review papers can be submitted only in English language.