First records of elm zigzag sawfly (Hymenoptera: Argidae) in the United States

IF 2.4 3区农林科学 Q1 ENTOMOLOGY

Journal of Integrated Pest Management Pub Date : 2023-01-01 DOI:10.1093/jipm/pmad009

K. Oten, E. Day, T. Dellinger, H. H. Disque, L. Barringer, Jessica Cancelliere, Liam Somers, Matthew A. Bertone

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引用次数: 0

Abstract

The elm zigzag sawfly (EZS), Aproceros leucopoda Takeuchi, was detected in the United States for the first time in Virginia in 2021. In 2022, it was confirmed in 4 additional states: Pennsylvania, North Carolina, Maryland, and New York. These are the first records of this species in the United States and demonstrate a rapid range expansion of an invasive defoliating pest. Native to Asia, EZS feeds exclusively on Ulmus spp. (elms; Ulmaceae). In the United States, feeding damage ranges in severity from minor to severe. Young instars create a zigzag-shaped pattern in leaves as they feed, while older larvae feed more completely on foliage, leaving only the midvein and sometimes thick lateral veins. This more complete feeding often obscures the signature zigzag defoliation of younger instars. Long-term health impacts to host trees are unknown, though aesthetic damage, growth loss, and branch dieback occur in Europe where it is also invasive. Little is known about management options for this pest, and continued expansion of this species’ range in the United States is expected.

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榆树锯齿锯蝇在美国的首次记录（膜翅目：锯蝇科）

2021年，在美国弗吉尼亚州首次发现了榆树锯齿状锯蝇（EZS），即竹内Aproceros leucopoda Takeuchi。2022年，又有4个州确诊：宾夕法尼亚州、北卡罗来纳州、马里兰州和纽约州。这是该物种在美国的首次记录，证明了一种入侵性落叶害虫的范围迅速扩大。原产于亚洲，EZS只以榆树为食。在美国，进食损伤的严重程度从轻微到严重不等。幼龄幼虫在觅食时会在叶子上形成锯齿状图案，而年长幼虫则更完全地以叶子为食，只留下中脉，有时还会留下较厚的侧脉。这种更完整的喂养往往掩盖了年轻幼虫标志性的锯齿状落叶。对寄主树木的长期健康影响尚不清楚，尽管在欧洲也会发生美学损伤、生长损失和枝条枯死，在那里它也是入侵性的。人们对这种害虫的管理选择知之甚少，预计该物种在美国的范围将继续扩大。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Integrated Pest Management Agricultural and Biological Sciences-Insect Science

CiteScore

5.80

自引率

3.60%

发文量

审稿时长

25 weeks

期刊介绍： Journal of Integrated Pest Management is an open access, peer-reviewed, extension journal covering the field of integrated pest management. The Editors-in-Chief are Dr. Marlin E. Rice (formerly with Iowa State University) and Dr. Kevin L. Steffey (formerly with the University of Illinois). The journal is multi-disciplinary in scope, publishing articles in all pest management disciplines, including entomology, nematology, plant pathology, weed science, and other subject areas.