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| Conferences//Workshops/Announcements |
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NEW--Upcoming Virginia vineyard meetings:
For registration and details refer to the pdf file. |
| NEW--September 10: All America's Horticulture Field Day at Virginia Tech's Hampton Roads Agriculture and Research Extension Center. Classes on disease diagnosis, weed management, propagation, turfgrass, bare root planting, pesticide safety, water quality and more. Classes in Spanish. Online regristration at www.vahort.org. For the full program listing and registration see the pdf file. |
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August 14: the 2008 Virginia Ag Expo will be held in
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| Pest Alerts |
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NEW--On July 8th Emerald Ash Borer (EAB) was identified at sites in Herndon and Springfield, Virginia. This is the second time that this invasive species, which is usually lethal to ash trees, was found in the county. It was previoulsly found and contained in 2003. The movement of EAB-infested firewood is an important pathway for moving the beetle. See the press release for more information. Symptoms of EAB infestation include dieback and sprouts growing from the trunk or roots.
Emerald Ash Borer adults and larvae. Images courtesy of David Cappaert, Michigan State University, Bugwood.org
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Sirex noctilio is an exotic species of wood-boring wasp that can cause significant mortality to healthy pine trees.
Image: Adult female Sirex woodwasp. Courtesy of Stanislaw Kinelski, Bugwood.org |
On February 19, 2008, the USDA Animal and Plant Health Inspection Service (APHIS) confirmed two female Sirex noctilio detected in Sanilac County, Michigan. The Sirex survey area in Michigan is part of a multi-state survey effort that has been ongoing for several years in high-risk areas throughout the United States. To date, cooperative State and Federal survey efforts have detected S. noctilio in 6 Pennsylvania Counties, 2 Michigan counties (including Sanilac), 29 New York counties, and 1 Vermont County. | Publications |
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Baudoin, A., Olaya, G., Delmotte, F., Colcol, J. F., and Sierotzki, H. 2008. QoI resistance of Plasmopara viticola and Erysiphe necator in the mid-Atlantic United States. Online. Plant Health Progress doi:10.1094/PHP-2008-0211-02-RS. |
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New Virginia Cooperative Extension publications: Problem-free Trees for Virginia Landscapes and Problem-free Shrubs for Virginia Landscapes |
Last updated 3/11/08
Virginia Cooperative Extension - Virginia Agriculture & Experiment Station