Early instar oak skeletonizer. Photo provided by: G. Keith Douce, University of Georgia, Bugwood.org
Oak skeletonizer. Larvae feed on undersides of the leaf and top side of leaf remains. White areas along veins are where insect molts from stage to stage and pupates. Photo provided by: Ronald S. Kelley, Vermont Department of Forests, Parks and Recreation, Bugwood.org
One color morph of yellownecked caterpillars. Photo provided by: Gerald J. Lenhard, Louiana State Univ, Bugwood.org
Color morph of yellownecked caterpillar. Photo provided by: Eric R. Day, Virginia Polytechnic Institute and State University, Bugwood.org
Color morph of yellownecked caterpillar. Photo provided by: Gerald J. Lenhard, Louiana State Univ, Bugwood.org
Tag Archives: August
Disease Hotline Issue 20
Alfalfa mosaic virus on potato. Photo provided by: Howard F. Schwartz, Colorado State University, Bugwood.org
Cercospora leaf spot on Bigleaf Hydrangea. Photo found at: http://www.aces.edu/pubs/docs/A/ANR-1212/
Cercospora leaf spot on rose. Photo provided by: Paul Bachi, University of Kentucky Research & Education Center, Bugwood.org
Daylily leafstreak. Photo found at: http://www.umass.edu/umext/floriculture/fact_sheets/pest_management/daylily_rust_streak.htm
Insect Hotline Issue 20
The amount of azadirachtin present in a formulation varies and may reflect whether the
product is a Ready-to-Use (RTU) formulation or a concentrate.
Commercial applicators can buy AZA containing brands such as
Azatin, Azatrol, Azamax, etc. Home Garden trade names include
Safer BioNeem, Neem-Away Insect Spray, and others.
This image was copied from a website and modified to prevent promotion of a particular brand of neem products. The image is presented to show concentrated and RTU neem products. The University of Delaware does not discriminate or endorse the use of one particular product over others.
Culture Hotline Issue 19
Above is a photo of a style of compost bins. Photo found at: http://www.flickr.com/photos/tobin/193568007/
Disease Hotline Issue 19
Chrysanthemum white rust on Chrysanthemum. Photo provided by: Division of Plant Industry Archive, Florida Department of Agriculture and Consumer Services, Bugwood.org
Chrysanthemum white rust on Chrysanthemum. Photo provided by: Central Science Laboratory, Harpenden Archive, British Crown, Bugwood.org
Chrysanthemum white rust on Chrysanthemum. Photo provided by: John W. Dooley, USDA APHIS PPQ, Bugwood.org