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Phytophthora pluvialis

Gobbledigook? Probably - so read on, it's IMPORTANT gobbledigook if you are a tree, woodland or forest owner OR if you buy timber or firewood locally.

Phytophthora pluvialis is a fungus-like pathogen known to affect a variety of trees including western hemlock, tanoak, pine (Pinus radiata, Pinus patula and Pinus strobus) and Douglas-fir.

There is no shortage of 'have a go heroes' with chainsaws that call themselves 'tree surgeons' or 'arborists' or even 'foresters' but unless they have sufficient knowledge and experience they are actually just amateurs with little idea of the damage they can do. So if you think good tree work is expensive, wait til you try and cut corners and find out how expensive 'cheap' tree work is....

Western Hemlock, Tanoak, Pinus radiata, Pinus patula and Pinus strobus and Douglas-fir - these trees and timber products are subject to an embargo iaw the relevant plant health notices.

The notices prohibit the movement of any wood, isolated bark and trees (including live trees, felled or fallen trees, fruit, seeds, leaves or foliage) of the genus Tsuga, Pseudotsuga, Pinus and Notholithocarpus, that has originated within the demarcated area.

Demarcated Area No.8 Notice comes into force on 4 March 2022 replacing the Notice No.6 which was issued on 20 January 2022 and applies to parts of Cornwall and Devon.

You will find detailed information on disease identification and symptom guide here:


If you are planning (or having) tree work conducted, be sure to ask your contractor about the implications of Phytophthora pluvialis.

If you get a blank look it will be pretty obvious that you are dealing with an idiot.....

You will find detailed information on plant health notices here: