Tree showing signs of Emerald Ash Borer damage. Photo provided by: Brian Kunkel, Ornamentals IPM Specialist, University of Delware
Emerald ash borer adult and serpentine tunnels packed with frass. Photo provided by: Eric R. Day, Virginia Polytechnic Institute and State University, Bugwood.org
Tree damaged by Asian Longhorn beetle. Photo provided by: Pennsylvania Department of Conservation & Natural Resources - Forestry Archive, Bugwood.org
Emergence hole of Asian Longhorn beetle. Photo provided by: Kenneth R. Law, USDA APHIS PPQ, Bugwood.org
Asian Longhorn beetle. Photo provided by: Photo provided by: Pennsylvania Department of Conservation & Natural Resources - Forestry Archive, Bugwood.org
Another picture of rose midge damage (bull-necking) and the white spots are midge larvae. Photos found at: http://oregonstate.edu/dept/nurspest/rose_midge.htm website and appears to have been taken by Robin Rosetta.
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