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Blog
Plane Lace Bug: A Delicate Micro Menace Concealed in the City
On the 25th of July 2024, a public observation was made on iNaturalist of an interesting tiny bug found on someone’s bag in central London. A scientist from Defra spotted the report and gathered more information from the informer, believing it to be a specimen of the plane lace bug (Corythucha ciliata) due to its lace-like appearance and the location of the find in central London, where London plane trees abound.
Amirah Nigoumi • 30 Apr 2025
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Blog
Host of the month - Elm
For this month's host tree of interest, Matt Parratt focusses on Elm (Ulmus species) and Elm zigzag sawfly (Aproceros leucopoda).
Matt Parratt • 15 May 2025
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Blog
Observatree Visit to Shibden Hall Park
Charles Lane reflects on a recent Observatree visit to Shibden Hall Park.
Charles Lane • 29 May 2025
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Blog
Do we still need to record and report Chalara dieback of Ash?
Matt Parratt discusses the prevalence of Chalara dieback of Ash and offers some guidance on reporting this widespread disease.
Matt Parratt • 27 Nov 2025
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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
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Great spruce bark beetle poster
PDF • 4.00 MB