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Pests and diseases
Phytophthora lateralis
Discovered in the UK in 2010, Phytophthora lateralis is a fungus-like plant pathogen that attacks the roots of Lawson cypress trees.
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Blog
Volunteering to help our trees!
This Plant Health Week, Rebecca, our Observatree volunteer manager celebrates the achievements of our wonderful volunteers.
Rebecca Gosling • 09 May 2022
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Blog
Host of the month - Birch
Matt Parratt, Observatree Scientific Coordinator, looks at birch (Betula species) and bronze birch borer.
Matt Parratt • 26 Feb 2024
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Blog
Host of the month - Plane
Matt Parratt, Observatree Scientific Coordinator, highlights plane, plane lace bug and plane wilt.
Matt Parratt • 29 Aug 2023
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Blog
British cedars under attack?
Recently, cedars have been considered as an alternative forestry species, learn about how Sirococcus tsugae threatens this species.
Ana Perez-Sierra • 16 Feb 2016
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Blog
Host of the month - Maples
Matt Parratt, Observatree Scientific Coordinator, looks at Asian and Citrus longhorn beetles.
Matt Parratt • 26 Sep 2023
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Blog
A new collaboration as part of the UK Garden Sentinel Network
As Observatree continues to establish collaborative networks, we recently teamed up with the Botanic Gardens Conservation International (BGCI) and PlantNetwork to help raise awareness of tree health in wider audiences and promote surveillance and reporting by more people.
Peter Crow • 26 Apr 2024
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Blog
Host of the month - Spruce
Matt Parratt, Observatree Scientific Coordinator, looks at common spruce (Picea species) and great spruce bark beetle.
Matt Parratt • 01 Jan 2024
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Blog
Emerging pests and diseases and their suitability for citizen science surveillance
A review of emerging pests and diseases
Charles Lane • 01 May 2024
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Blog
Observatree is a Constant in 2020
We could say that this year has been unusual, and we had to adapt to new ways. However, nothing has stopped Observatree volunteers keeping their eyes open and reporting pests and diseases to the Tree Health Diagnostic and Advisory Service (THDAS).
Ana Perez-Sierra • 11 Feb 2021