sudden oak death


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sudden oak death

n.
A disease caused by the oomycete Phytophthora ramorum that affects oak trees and certain other woody plants and is characterized by oozing cankers on the trunk, browning of foliage, shoot dieback, and often death of the plant.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
According to the United States Department of Agriculture's Animal and Plant Inspection Service (APHIS), some of the more than 75 tree and plant species that can host or spread sudden oak death are:
Sudden oak death and Phytophthora ramorum: A summary of the literature, 2010 edition.
* Phytophthora ramorum causes two plant diseases, sudden oak death and ramorum blight.
Sudden oak death was discovered in oak trees in the 1990s but jumped to other species.
The opening of the new facilities comes at a time when the spread of new plant diseases in the UK, in particular 'Phytophthora ramorum' which causes Sudden Oak Death, have required an acceleration of emergency propagation to ensure the survival of threatened specimens and the supply of disease-free replacements.
Key Words: Phytophthora ramorum, sudden oak death, service learning, stream monitoring.
This problem has got worse in recent years, as the global market place seems to run out of control and, for our part, is only scantily checked by Her Majesty's Border Agency staff - the result is that sudden oak death, scarlet lily beetle, box blight and many more previously unseen and unheard of problems are now plaguing our gardens, at a time when the quantity and diversity of suitable chemical controls is gradually but inexorably declining.
Around 1m trees in Wales are being felled in an attempt to halt the advance of the Ramorum fungus, commonly known as Sudden Oak Death.
But in recent years, such invasive species as emerald ash borer and Asian longhorned beetle, and diseases such as sudden oak death, have been killing trees in various regions of North America.
AS thousands of trees are currently being felled across the south west due to sudden oak death disease, I write to celebrate Liverpool's greenery.
He added: "The disease is called Sudden Oak Death and there are signs of a major outbreak in south-west England.
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