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Conferences/Workshops/Announcements
Pest Alerts-- NEW
Publications--NEW
 
Conferences//Workshops/Announcements  
March 24-26. The Sixth International IPM symposium: Transcending Boundaries. Portland, Oregon. For more information see the symposium website.

NEW--April 5. A Christmas tree workshop for new growers will be held at Glengary Christmas Tree Farm in Amissville, VA.This workshop is open to the public and is an annual event held by the Virginia Christmas Tree Growers Association. For the agenda and registration info refer to the pdf.
  
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Pest Alerts

Sirex noctilo NEW--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.

Sirex noctilio is an exotic species of wood-boring wasp that can cause significant mortality to healthy pine trees.
 
For more information on this pest see the NAPPO websiteand the APHIS website.
 
Image: Adult female Sirex woodwasp. Courtesy of Stanislaw Kinelski, Bugwood.org.
On October 17th Emerald Ash Borer (Agrilus planipennis) was confirmed found in Fayette County, West Virginia. This was the first confirmed EAB detection in this state. The affected facility is an outdoor recreational site supporting camping, mountain biking, and white water rafting. This site is located approximately 180 miles south of the nearest EAB detection in the area of Pittsburgh, Pennsylvania. The movement of EAB-infested firewood is an important pathway for moving the beetle and is believed to be how the insect found its way to Fayette County. EAB is present in other areas of the United States, including Ohio, Indiana, and Illinois, Michigan, and Prince George’s County, Maryland. It was first detected in the United States in southeastern Michigan. Since then, EAB has been responsible for the death and decline of more that 25 million ash trees in the United States. APHIS is working with State cooperators and foresters to raise public awareness about the high risk of spreading EAB associated with the interstate movement of firewood from quarantined areas. For more information on this pest see the NAPPO pest alert.
 
Emerald Ash Borer adults and larvae. Images courtesy of David Cappaert, Michigan State University, Bugwood.org
 
 
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Publications  
NEW--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.
 

Last updated 3/11/08

Virginia Cooperative Extension - Virginia Agriculture & Experiment Station