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Cerambycid Communities and Their Associated Hymenopteran Parasitoids From Major Hardwood Trees in Delaware: Implications for Biocontrol of Invasive Longhorned Beetles
Environmental Entomology ( IF 1.7 ) Pub Date : 2020-01-08 , DOI: 10.1093/ee/nvz169
Julian R Golec 1, 2, 3 , Ellen Aparicio 2 , Xingeng Wang 1 , Jian J Duan 1 , Roger W Fuester 1 , Daria Tatman 1 , Robert R Kula 4
Affiliation  

Abstract Cerambycidae provide important ecological services in forests yet cause economic damage when they infest living trees. Parasitoids can regulate woodborer populations, providing considerable control of pest cerambycids. Identifying parasitoids of native cerambycids may be useful in managing cerambycid outbreaks and aid in new-association biocontrol of exotic invasive cerambycids.We investigated Cerambycidae and associated hymenopteran parasitoid communities infesting Acer rubrum, Pinus virginiana, and Carya tomentosa from a forest in Delaware from 2005 to 2012. Cerambycid abundance, diversity, and richness, as well as parasitoid abundance, were measured by collecting trees in different conditions: felled, girdled, and naturally infested. Effect of edge or interior red maple on cerambycid abundance, diversity, and richness was examined. Over 14,500 cerambycids of 56 species and 38 genera were collected during the 7-yr period. Eleven species represented 95% of all cerambycids collected. Treatment only affected red maple, showing increased cerambycid richness and diversity from naturally infested trees. Cerambycid richness and diversity were two times greater on hickory than other species when combining girdled and felled treatments. Over 19,000 parasitic Hymenoptera of 12 families emerged from woodborer-infested wood with >70% of individuals belonging to Braconidae. Thirteen known species, and two unknown species, of Braconidae were identified from a subsample of 495 specimens; Ontsira mellipes (Ashmead) (Hymenoptera: Braconidae) and Rhoptrocentrus piceus Marshall (Hymenoptera: Braconidae) were the most abundant.This study provides fundamental information on native parasitoids associated with Cerambycidae, including cerambycid larval host associations. Parasitoids identified herein should be investigated for potential adaptation to invasive Cerambycidae to benefit invasive woodborer management.

中文翻译:

来自特拉华州主要硬木树的天牛群落及其相关膜翅目寄生虫:对入侵性长角甲虫生物防治的影响

摘要 天牛科在森林中提供重要的生态服务,但当它们侵染活树时会造成经济损失。寄生蜂可以调节蛀木虫的数量,对害虫天竺葵提供相当大的控制。鉴定天然天牛的寄生蜂可能有助于管理天牛爆发并有助于外来入侵天牛的新关联生物防治。 2012. 天牛的丰度、多样性和丰富度,以及寄生蜂丰度,是通过收集不同条件下的树木来测量的:砍伐的、环抱的和自然感染的。检查边缘或内部红枫对天牛菌丰度、多样性和丰富度的影响。7 年间共收集到 56 种 38 属的 14,500 多株天牛。11 个物种占收集到的所有天牛菌的 95%。处理仅影响红枫,显示自然受侵染的树木中天牛菌的丰富度和多样性增加。当结合环切和砍伐处理时,山核桃木上天牛的丰富度和多样性是其他物种的两倍。12 个科的 19,000 多个寄生膜翅目出现在蛀木虫侵染的木材中,其中 70% 以上的个体属于茧蜂科。从 495 个样本的子样本中确定了 13 种已知物种和 2 种未知物种;Ontsira mellipes (Ashmead) (膜翅目:Braconidae) 和 Rhoptrocentrus piceus Marshall (Hymenoptera: Braconidae) 是最丰富的。这项研究提供了与天牛科相关的本地寄生蜂的基本信息,包括天牛幼虫宿主协会。应调查此处确定的拟寄生物对侵入性天牛科的潜在适应性,以利于侵入性蛀木虫管理。
更新日期:2020-01-08
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