Search Observatree
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Asian longhorn beetle - Forest Research
External link
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Acute oak decline detailed information
External link
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Pests and diseases
Emerald Ash Borer
Native to Asia and Eastern Russia, the emerald ash borer is a threat to our already vulnerable ash trees.
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Pests and diseases
Asian Longhorn Beetle
Native to Eastern China, Japan and Korea, this beetle can infest a wide variety of trees with beetles emerging from spring onwards.
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Pests and diseases
Plane Lace Bug
The plane lace bug feeds only on plane trees, laying its eggs on the underside of its leaves.
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Video
Seasonal survey highlights - March to May 2025
In this video, Charles Lane, Plant Health Consultant at Fera Science Ltd, reminds us of the Observatree project resources that are relevant for the forthcoming season, focusing on the priority pest and diseases for March-May: Bronze birch borer, Oak processionary moth, Acute oak decline, Oak lace bug and Sirococcus tsugae.
00:10:36
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Host of the Month: Acer and Longhorn Beetle - October 2024
PDF • 1.47 MB
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Spruce and Great Spruce Bark Beetle - January 2025
PDF • 1.32 MB
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Host of the Month: Lawson Cypress and Phytophthora lateralis - February 2025
PDF • 955 KB
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Acute oak decline field identification guide
PDF • 22.17 MB