Forest Health News
November 3rd, 2025
Elm Zigzag Sawfly Continues to Spread and is Now Found on Japanese Zelkova

Elm zigzag sawfly (Aproceros leucopoda) is an invasive, defoliating pest of elm species originating from eastern Asia. Since its first detection in North America in 2020, the species has rapidly expanded across the southeastern United States and into multiple Canadian provinces. This new publication highlights the swift spread of the elm zigzag sawfly and reports its feeding on a newly confirmed host tree — Japanese zelkova. Check out the article to learn more!

Read the article here

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