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January 15, 2013
Potato Late Blight Still a Threat to Global Food Security (Dec 28, 2012)
A study by scientists has warned the organism responsible for the Irish potato famine is still a major threat. The team said the results showed the need for strategies to protect potatoes from disease. Phytophtora infestans is a fungus like organism that causes late blight in potatoes. It infects leaves, stems and tubers and can cause devastating crop losses.
* See our Species Profile - Late Blight page for more information and additional resources.
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Microbes / Species Profiles
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January 8, 2013
Species Profile -- Karnal Bunt
Karnal bunt is a fungal disease that infects wheat, reducing quality and yield. Karnal bunt was first detected in the U.S. in 1996, possibly arrived from Mexico in shipments of contaminated grain.
* See our Microbes section for more information and additional species profiles.
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June 5, 2012
Species Profile -- Chestnut Blight
Chestnut Blight is a fungal disease that virtually eliminated mature American chestnuts from the U.S. The disease was introduced on nursery stock imported from Asia and was first discovered in 1904.
* See our Microbes section for more information and additional species profiles.
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Species Profile -- Butternut Canker
Butternut Canker is a lethal disease which is killing butternut trees throughout its range in North America. The disease was first detected in the U.S. in 1967, but may have been present before then. The wood from butternut trees is valued for furniture, paneling, specialty products, and carving. Butternut produces nuts for wildlife and is important for commercial nut production.
* See our Microbes section for more information and additional species profiles.
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June 4, 2012
Species Profile -- Beech Bar Disease
Beech bar disease is a fungal disease that kills American beech trees after being attacked by the beech scale insect (Cryptococcus fagisuga). The disease was Introduced accidentally on imported European beech saplings and was introduced to Canada during the late 1800s and first appeared in the U.S. during the 1930s.
* See our Microbes section for more information and additional species profiles.
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May 16, 2012
Thousand Cankers Disease Survey Guidelines Now Available (May 2012)
In cooperation with the U.S. Forest Service, APHIS Plant Protection and Quarantine has updated the Thousand Cankers Disease Survey Guidelines for 2012 (Apr 2012). The main change to the guidelines from last year is the addition of instructions on how to use the lure that has been developed for walnut twig beetle. TCD results from the combined activity of Geosmithia morbida fungus and the walnut twig beetle (WTB, Pityophthorus juglandis).
* See our Thousand Cankers Disease page for more information and additional resources.
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April 19, 2012
Bat-killing Fungus is a European Import (Apr 9, 2012)
The fungal pathogen Geomyces destructans, introduced into North America from Europe, is the likely cause of white-nose syndrome, an epidemic that has killed millions of North American bats, according to a study from the Proceedings of the National Academy of Sciences (Apr 9, 2012).
* See our Species Profile - White-Nose Syndrome and our In the News section for more information and additional resources.
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March 27, 2012
Spinach Genes May Stop Deadly Citrus Disease (Mar 26, 2012)
Citrus growers worldwide who currently have no cure for a devastating, tree-killing disease may soon find relief from an unlikely source -- spinach. Researchers have transferred two genes from spinach into citrus trees, apparently providing resistance to citrus greening disease, or Huanglongbing, often referred to as HLB.
* See our In the News or our Species Profile - Citrus Greening page for more information and additional resources.
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August 3, 2011
Late Blight - USAblight -- a National Project on Late Blight of Tomatoes and Potato in the United States.
This new national website that will act as an information portal on late blight. You can report disease occurrences, submit a sample online, observe disease occurrence maps, and sign up for text disease alerts. There are also useful links to a decision support system, and information about identification and management of the disease.
* See our Species Profile - Late Blight page for more information and additional resources.
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August 2, 2011
Developing Vaccines to Combat Diseases in Animals: A New Vaccine to Fight Newcastle Disease (Jul 2011)
Newcastle disease, which can be deadly for domestic and commercial poultry as well as wild bird populations, is a major concern worldwide for the poultry industry. ARS Scientists have developed a new vaccine that reduces mortality and severity of ND symptoms in poultry.
* See our In the News section and our Species Profile - Exotic Newcastle Disease page for more information and additional resources.
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April 28, 2011
2011 California Oak Mortality Task Force Online Meeting -- "Sudden Oak Death/Phytophthora ramorum: A Global Perspective on Management and Movement
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April 14, 2011
National Interagency Team Mobilizing To Tackle White-Nose Syndrome of Bats (2011)
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February 22, 2011
White-Nose Syndrome Devasting Bat Colonies (Winter 2011)
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December 14, 2010
Species Profile -- Thousand Cankers Black Walnut Disease
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November 9, 2010
Psyllid Identification Key to Area-wide Control of Citrus Greening Spread (Nov 3, 2010)
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September 8, 2010
Environmental Assessment for the proposed Asian Citrus Psyllid Control Program in the Continental United States and Puerto Rico (Aug 2010)
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June 22, 2010
USDA Announces Quarantine to Prevent Spread of Citrus Disease (Jun 17, 2010)
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June 15, 2010
Whirling Disease in the United States: A Summary of Progress in Research and Management (2009; PDF | 1.9 MB)
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April 26, 2010
Species Profile -- White-Nose Syndrome
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January 26, 2010
Species Profile -- Dutch Elm Disease
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August 13, 2009
Species Profile -- Laurel Wilt
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August 5, 2009
Species Profile -- Dogwood Anthracnose
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July 9, 2009
Species Profile -- Late Blight
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July 1, 2009
Citrus Canker; Movement of Fruit From Quarantined Areas - Proposed rule (Jun 30, 2009)
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June 11, 2009
Species Profile -- Gladiolus Rust
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Species Profile -- White Pine Blister Rust
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February 10, 2009
Update of Asian Citrus Psyllid and Citrus Greening Quarantine Areas (Jan 28, 2009)
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November 6, 2008
Species Profile -- Citrus Greening
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October 1, 2008
Species Profile -- Citrus Canker
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June 19, 2008
Species Profile -- Viral Hemorrhagic Septicemia
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September 13, 2007
Interactive Avian Influenza Map
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August 3, 2007
HoneySweet Plum Trees: A Transgenic Answer to the Plum Pox Problem - Frequently Asked Questions (Jul 2007)
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February 14, 2007
Pest Alert: Phytophthora ramorum (Sudden Oak Death) update for 2006 (Feb 8, 2007)
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November 21, 2006
Avian Flu
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November 20, 2006
West Nile Virus
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June 27, 2006
Yield Loss Prediction Tool for Field-Specific Risk Management of Asian Soybean Rust
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June 12, 2006
New Species Information - Microbes
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