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Downy mildew makes E. coli more likely to contaminate lettuce

in USDA Agricultural Research Service News.

Escherichia coli O157:H7, a bacterium that causes foodborne illness in humans, is more likely to contaminate lettuce when downy mildew is already present, according to U.S. Department of Agriculture (USDA) scientists.

Downy mildew, a lettuce disease caused by the fungus-like water mold Bremia lactucae, is one of the biggest problems that lettuce growers must deal with.

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Two positions open at USDA-ARS Southeast Watershed Research Lab in Tifton, GA

The USDA Agricultural Research Service (ARS) Southeast Watershed Research Lab in Tifton has two open technical support positions that have recently been advertised:

https://www.usajobs.gov/GetJob/ViewDetails/406561400

Current federal employees may also apply under:

https://www.usajobs.gov/GetJob/ViewDetails/406567700

The two positions will be filled from the one announcement. The announcements close on June 24.

Honeybee diseases may strike year-round, research shows

From ARS News

U.S. Department of Agriculture (USDA) scientists in Maryland and their colleagues have found that two pathogens causing mysterious honey bee ailments are a problem not just in the spring, but they might pose a threat year-round. Ryan Schwarz and Jay Evans, entomologists with the Agricultural Research Service (ARS), have shown that two species of bacteria, Spiroplasma melliferum and S. apis, are more common than previously thought and infect honey bees in places as diverse as Brazil and Beltsville, Maryland.

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Two lepidopterist positions open at USDA ARS in Washington, DC

USDA Agricultural Research Service is seeking candidates for  two Lepidopterist (Research Entomologists) positions in the Systematic Entomology Laboratory. The positions are open for applicants via the USA Jobs website:  https://www.usajobs.gov/GetJob/ViewDetails/391979300

Deadline is February 6.