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Potatoes and oak trees don’t have a lot in common, but there is one thing, and it isn’t good – a fungal-like plant pathogen in the genus Phytophthora. One of the many invasive pathogens contained in this genus, P. infestans, was responsible for the Irish potato famine. Since the mid-1990s, though, Phytophthora has been attacking forest trees along the West Coast, with the pathogen P. ramorum, also known as "sudden oak death" (SOD). SOD was first detected in the San Francisco Bay Area; it has since spread throughout California. In 2001, SOD was discovered in southwest Oregon where it infected tanoaks trees. The discovery led to the formation of an interagency team that included researchers from the Agricultural Research Service (ARS) and Oregon State University (OSU), to develop strategies to mitigate the impacts of SOD.

Although not yet detected here, thousand cankers disease (TCD) is a potentially fatal disease of black walnut, caused by the walnut twig beetle (Pityophthorus juglandis) and an associated fungus (Geosmithia morbida). TCD could easily spread to Missouri from the several eastern and western states where TCD is already present. You can help minimize the chances of spreading TCD by following these steps:

• Don't move firewood
• Don't transport walnut for woodworking (including buying walnut wood over the Internet)
• Promptly report dead or dying walnut trees

The U.S. Fish and Wildlife Service (Service) is providing much needed support in the fight against the bat-killing fungal disease white-nose syndrome (WNS) through an additional $1 million in grants to 39 states and the District of Columbia. WNS has killed millions of North American bats in recent years, decimating many populations and putting several species at additional risk of extinction.

The U.S. Fish and Wildlife Service (Service) announced today that a team of six researchers from Oregon State University and the University of California, Santa Cruz are the winners of a national prize challenge to combat white-nose syndrome (WNS), a lethal wildlife disease that has killed millions of bats in North America and pushed some native bat species to the brink of extinction. The Service's White-nose Syndrome Program launched the challenge last October as part of a multi-faceted funding strategy to develop management tools to fight the disease. A total of 47 proposed solutions were submitted for permanently eradicating, weakening or disarming Pseudogymnoascus destructans, the fungus that causes WNS, thereby improving survival in bat species affected by the disease. A panel of 18 experts from academic institutions, federal agencies and nongovernmental organizations evaluated the challenge entries based on readiness, deployment scale, species susceptibility, ease of use, cost efficiency, efficacy and risk to resources.

In the coming months, the Service will announce a second challenge to offer an additional $80,000, as we continue to pursue novel, innovative solutions that could help us permanently eradicate, weaken, or disarm the fungus that causes white-nose syndrome. The Service plans to hold additional idea prize challenges in the future to invite solvers with a diverse array of knowledge, skills, expertise and perspectives to help the agency tackle today’s toughest conservation issues.

The U.S. Fish and Wildlife Service announced a final rule to reclassify the northern long-eared bat as endangered under the Endangered Species Act (ESA). The bat, listed as threatened in 2015, now faces extinction due to the rangewide impacts of white-nose syndrome, a deadly disease affecting hibernating bats across North America. The rule takes effect on January 30, 2023.

A national cooperative effort (funded by USDA-NIFA) on Late Blight of Tomato and Potato in the U.S. This site serves 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.

View Outbreak Map for current year or for prior years.

The U.S. Department of Agriculture today announced it is taking several additional actions to ensure the health and viability of the nation’s livestock and poultry. In the two months since the initial detection of H5N1 in dairy cattle, USDA has worked quickly and in concert with its federal and state partners to better understand the virus and contain the disease and remains committed to seeking additional ways to collect the data needed to better understand and mitigate the risk created by this outbreak.
See related resource: Avian Influenza