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Blog
Host of the month - Plane
This month Matt Parratt delves into the world of Plane trees, Plane lace bugs and Canker stain of plane (formerly known as 'Plane wilt').
Matt Parratt • 21 Aug 2025
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Host of the Month: Rowan European Mountain ash Ringspot Associated Virus - July 2026
PDF • 1.03 MB
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An introduction to our priority pests and diseases
Video • 00:03:36
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Tree health
The importance of biosecurity
Good biosecurity practice can reduce the risk of introducing or spreading pests, diseases and invasive species.
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Acute oak decline training video
Video • 00:08:47
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Biosecurity
Video • 00:05:55
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Phytophthora lateralis - Worldwide distribution map
External link
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Phytophthora lateralis factsheet
External link
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Horse chestnut leaf miner poster
PDF • 3.62 MB
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Blog
The role of citizen science in tree health in Slovenia
As part of the International Year of Plant Health, Observatree is hosting blogs from colleagues around the world who, like us, are working to slow the spread of invasive tree pests and diseases. This blog is from the Slovenian Forestry Institute who talk about their citizen science project LIFE ARTEMIS.
Simon Zidar and Dr Maarten de Groot • 08 Apr 2020