Observatree Blog
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Blog
Host of the month - Lawson cypress
This month Matt looks at at Lawson cypress (Cupressus lawsoniana) and its associated pathogen, Phytophthora lateralis.
Matt Parratt • 22 Jan 2025
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Blog
Host of the month - Spruce
For December, Matt Parratt looks at Spruce (Picea species) and the Great spruce bark beetle.
Matt Parratt • 19 Dec 2024
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Blog
Defining Tree Health
Matt Parratt offers an explanation of how to define tree health in the context of Observatree.
Matt Parratt • 21 Nov 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 - Sweet chestnut
Matt Parratt discusses Sweet chestnut (Castanea sativa) and its associated pest: the Oriental chestnut gall wasp, and its associated disease: Sweet chestnut blight.
Matt Parratt • 17 Oct 2024
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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
The Alder Leaf Beetle - Agelastica alni
In this blog article John Pitcairn, who has been volunteering with Observatree for 6 years, shares with us his observations of the Alder Leaf Beetle.
John Pitcairn • 05 Sep 2024
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Blog
From Lens to Lab: The Power of Photography in Tree Disease Identification
David McKellar discusses the importance of photography in our diagnostic process and offers some guidelines for using our TreeAlert system to report suspected tree pests and diseases.
David McKellar • 22 Aug 2024
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Blog
Host of the month - Plane
Matt Parratt highlights Plane trees (Platanus), Plane lace bugs and Plane wilt.
Matt Parratt • 15 Aug 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