Search Observatree
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Pests and diseases
Agrilus fleischeri
Native to Asia, this beetle can infest poplar and willow trees with the beetles emerging from spring onwards.
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Pests and diseases
Oriental Chestnut Gall Wasp
The oriental chestnut gall wasp larvae cause galls to develop on the buds, leaves and leaf stalks of sweet chestnut trees making them vulnerable to other pests and diseases.
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Blog
Host of the month - Maple
This month Matt Parratt looks at Maples (Sapindaceae family), Asian longhorn beetle and Citrus longhorn beetle.
Matt Parratt • 19 Sep 2024
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Blog
Host of the month - Ash
Matt Parratt highlights Common ash (Fraxinus excelsior), the well-known ash dieback disease and its associated pest, Emerald ash borer.
Matt Parratt • 14 Nov 2024
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Blog
Host of the month - Pine
Matt Parratt discusses the different types of Pine (Pinus) and Dothistroma needle blight (DNB).
Matt Parratt • 15 Jul 2024
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An Introduction to recording the location of a tree
Video • 00:12:21
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Step 2 - Site and setting
Video • 00:11:49
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Plane wilt worldwide distribution map
External link
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Laypersons Report English
PDF • 5.59 MB
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Pest and disease calendar
PDF • 1.36 MB