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影响Xyleborus glabratus攻击和宿主利用的因素在卡罗来纳州的萨萨弗拉斯和红海湾

Katy Crout¹, Albert Mayfield², Julia Kerrigan³

¹Forestry and Environmental Conservation, Clemson University, Clemson, SC, USA.

Journal of economic entomology

|September 20, 2024

概括

红山甲虫 (RAB) 和与之相关的真菌导致树枯的疾病. 甲虫的攻击聚集在树上,特别是在树根附近,影响了萨萨弗拉斯和红贝的疾病传播.

科学领域:

植物病理学植物病理学
森林昆虫学森林昆虫学
生态生态学生态生态学

背景情况:

Laurel 枯病综合体,由非本地 redbay ambrosia 甲虫 (RAB) 和真菌 Harringtonia lauricola 引起,对美国东南部的 Lauraceae 种类构成重大威胁.
这种疾病于2002年首次被发现,现在迅速蔓延,在北美造成广泛的树木死亡和潜在的生态破坏.

研究的目的:

为了研究红湾虫 (RAB) 在红湾树和萨萨弗拉斯树上攻击的空间分布模式.
了解这些攻击模式如何与花枯疾病综合体在其扩张前沿的进展和传播有关.

主要方法:

检查了红湾树和萨萨弗拉斯树中RAB攻击的空间分布.
分析了RAB攻击集群,树侧集中,以及来自不同树干部分的出现率.
测量了不同高度的入口孔密度和茎的水分含量.

主要成果:

发现RAB攻击在红海湾和萨萨弗拉斯两种类型中都聚集在一起.
攻击集中在萨萨弗拉斯的南侧,而红湾则与其他RAB攻击集群.
在两种物种中,在茎底附近观察到更高的RAB出现,入口孔密度和水分含量.

结论:

RAB攻击的空间分布受到树种特定生理特征的影响,在林枯疾病的进展中起着至关重要的作用.
了解这些模式是预测和管理这种破坏性疾病在萨萨弗拉斯和其他Lauraceae中传播的关键.

关键词:

安布罗西亚甲虫是一种甲虫.劳伦病是劳伦病的一种疾病.空间分布的空间分布

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