Posts Tagged: USDA-ARS

USDA-ARS Researcher to Give UC Davis Seminar on Beech Leaf Disease

In the spotlight: the newly discovered beech leaf disease caused by the nematode, Litylenchus crenatae mccannii. First found in Ohio in 2012 and now spreading to at least 10 other states, plus Canada, the lethal disease kills the native...

Symptoms of beech leaf disease include swelling and darkening of interveinal tissues as well as chlorosis. (Photo courtesy of Paulo Vieira of USDA-ARS, Beltsville, MD.)

Symptoms of beech leaf disease include swelling and darkening of interveinal tissues as well as chlorosis. (Photo courtesy of Paulo Vieira of USDA-ARS, Beltsville, MD.)

USDA-ARS Researcher Targeting Honey Bee Health Decline

If you're interested in the honey bee health decline--and you should be--then you'll want to listen to what research associate Christopher Mayack of the USDA's Agricultural Research Service (ARS), Davis, says about "Chemical Biomarkers and...

A sick bee crawling on a leaf. (Photo by Kathy Keatley Garvey)

A sick bee crawling on a leaf. (Photo by Kathy Keatley Garvey)

How House Flies Are Trading Antibiotic Resistance Genes Among Themselves

If you're curious about house flies and the latest research on antibiotic resistance, you won't want to miss this seminar sponsored by the UC Davis Department of Entomology and Nematology. Research molecular biologist Dana Nayduch of the Agricultural...

A house fly feeding. (Photo courtesy of USDA-ARS)

A house fly feeding. (Photo courtesy of USDA-ARS)

Molecular Biologist Michelle Heck: Challenges of Citrus Greening Disease

If you grow citrus, you've no doubt heard of the invasive pest, Asian citrus psyllid, Diaphorina citri. ACP they call it. A native of southern Asia, it was first detected it in the United States (Florida) in 1998. ACP serves as a vector or...

Asian citrus psyllid nymphs and adults on stem and leaves of a citrus. (USDA-ARS Photo)

Asian citrus psyllid nymphs and adults on stem and leaves of a citrus. (USDA-ARS Photo)

Research Entomologist to Discuss Enemy of Lettuce: Thrips

They're small, about 1 mm long or less, with characteristic fringed wings. They fly, but not well. But thrips do pack a powerful punch.  A major pest of many agricultural crops, including lettuce, they damage plants by (1) sucking their...

Thrips is a major pest of lettuce production in Salinas. (Illustration courtesy of Daniel Hasegawa)

Thrips is a major pest of lettuce production in Salinas. (Illustration courtesy of Daniel Hasegawa)

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