Posts Tagged: USDA

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...

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...

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...

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

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

UC Davis Seminars: Two USDA Forest Entomologists to Zero in on Bark Beetles

There's so much to know about bark beetles! How can a tiny insect wreak such havoc in our forests? Two USDA forest entomologists will be presenting...

Bark beetles are the culprits in this forest image. USDA forest entomologist Chris Fettig will speak at 4:10 p.m., Feb. 1 on "Bark Beetles: How Tiny Insects Are Transforming Western Forests with a Little Help From Climate Change." (Photo courtesy of Chris Fettig)

Bark beetles are the culprits in this forest image. USDA forest entomologist Chris Fettig will speak at 4:10 p.m., Feb. 1 on "Bark Beetles: How Tiny Insects Are Transforming Western Forests with a Little Help From Climate Change." (Photo courtesy of Chris Fettig)

UC Davis forest entomologist and doctoral student Crystal Homicz assists in a fire beetle demonstration at a 2018 Bohart Museum of Entomology open house. The fire beetles are in the genus Melanophila and are sensitive to smoke and heat from smoldering trees after a fire. (Photo by Kathy Keatley Garvey)

UC Davis forest entomologist and doctoral student Crystal Homicz assists in a fire beetle demonstration at a 2018 Bohart Museum of Entomology open house. The fire beetles are in the genus Melanophila and are sensitive to smoke and heat from smoldering trees after a fire. (Photo by Kathy Keatley Garvey)

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...

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)

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