Utjecaj hrastove mrežaste stjenice Corythucha arcuata na visinu biljaka hrasta lužnjaka ovisno o načinu podmlađivanja

IF 0.5 4区 农林科学 Q4 FORESTRY Sumarski List Pub Date : 2023-10-31 DOI:10.31298/sl.147.9-10.4
Milan Drekić, Branislav Kovačević, Leopold Poljaković Pajnik, Andrej Pilipović, Marina Milović, Vid Rađević
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Abstract

Oak lace bug Corythucha arcuata represents a new pest of oaks in Europe, introduced from North America in year 2000. Damage is caused by adults and larvae that feed on the underside of leaves. The paper presents the results of investigation of impact of Corythucha arcuata on pedunculate oak growth. The two variant experiment was established in 2019 and included the evaluation of the effect of oak lace bug on the height of the seedlings (i) grown under the shade of the adult trees after the intermediate felling and (ii) seedlings grown unshaded after the final felling. Both variants included eight plots of which four were treated with the insecticide thiamethoxam, while other four were untreated. Assessment of the intensity of the attack was performed in June, July and August in 2019, 2020 and 2021, while the height of the plants was measured at the end of the vegetation period in 2019, 2020 and 2021.The results indicate significant decrease in the intensity of the attack on seedlings grown unshaded by the old trees. After first year, there was no difference in average height of the treated and untreated seedlings grown after the intermediate felling, while the difference was evident after second and third year. Such results indicate cumulative effect of the oak lace bug attack on the seedlings of the penduculate oak. On the other hand, during whole experiment, the differences between treated and untreated plant average height after the final felling were not evident.
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栎网虫 Corythucha arcuata 对栎树台球高度的影响取决于浇水方法
橡树花边虫(Corythucha arcuata)是2000年从北美传入欧洲的一种新的橡树害虫。破坏是由以树叶背面为食的成虫和幼虫造成的。本文介绍了山茱萸对有梗栎生长影响的研究结果。两种变异实验于2019年建立,包括评估橡木花边虫对幼苗高度的影响(i)中间砍伐后在成树树荫下生长的幼苗,以及(ii)最终砍伐后在无树荫下生长的幼苗。两种变异包括8块地,其中4块用噻虫嗪杀虫剂处理,另外4块未经处理。在2019年、2020年和2021年的6月、7月和8月进行了攻击强度评估,在2019年、2020年和2021年的植被期结束时测量了植物的高度。结果表明,对未被老树遮蔽的幼苗的攻击强度显著降低。第1年以后,中间采伐后处理苗与未处理苗的平均高度没有差异,第2年和第3年差异明显。这些结果表明,栎花边虫对垂穗栎幼苗的攻击具有累积效应。另一方面,在整个试验过程中,处理和未处理的植株最终砍伐后的平均高度差异不明显。
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来源期刊
Sumarski List
Sumarski List FORESTRY-
CiteScore
0.90
自引率
20.00%
发文量
32
审稿时长
>12 weeks
期刊介绍: Forestry Journal publishes scientific and specialist articles from the fields of forestry, forestry-related scientific branches, nature protection and wildlife management.
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