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VEGETABLE NEWS
Vegetable Insect Update
STRAWBERRY NEWS
APPLE NEWS
| Vol 2 No.12 | August 15 , 2005 |
Vegetable Insect Update
Eric Burkness, Suzanne Wold-Burkness, and Bill Hutchison, University of Minnesota
European Corn Borer (ECB) & Corn Earworm (CEW): We continue to see increased CEW activity across southern Minnesota (see Fig. 1), but ECB activity is beginning to decline. This week we harvested an untreated sweet corn plot that was planted May 16 at Rosemount, MN. Despite the presence of CEW moth activity during the silking period (2/night), we did not find any CEW larvae. However, 2 ears out of 100 were infested with late-instar ECB. As late-planted sweet corn begins to silk, fields should be monitored using pheromone traps for CEW.
Reminder: Check current ECB and CEW trap catch data at the Weekly Moth Catch site: http://www.vegedge.umn.edu/2005/moth.htm
Cabbage Looper (CL): Cabbage looper moths continue to be caught in pheromone traps at Rosemount, MN. Plant samples this week indicated infestation level of 40% of plants with CL eggs, and 20% of plants with small CL larvae. Treatment recommendations can be found at http://www.entm.purdue.edu/entomology/ext/targets/ID/index.htm.
ACKNOWLEDGEMENTS
Co-Editors: Bill Hutchison (hutch002@umn.edu), Department of Entomology, University of Minnesota, Jeanne Ciborowski, Minnesota Department of Agriculture, Ag. Resources Management and Development Division, and Suzanne Wold-Burkness (woldx018@umn.edu), Department of Entomology, University of Minnesota
The Newsletter is published weekly from May through August, cooperatively, by the Minnesota Department of Agriculture (MDA) and the University of Minnesota (U of MN). Reports are posted on the U of MN and MDA web sites on Fridays. If you have suggestions and/or comments, please send your contributions by 4 p.m., Wednesday to Jeanne Ciborowski, 651-297-3217, jeanne.ciborowski@state.mn.us , MDA, 90 W. Plato Blvd., St. Paul, MN 55107-2094. You can access the Newsletter at the U of MN web site in htm format at: www.vegedge.umn.edu/MNFruit&VegNews/mnindex.htm and at the MDA web site in pdf format at: www.mda.state.mn.us/biocon/fruitreports/
Partial funding for this publication is provided through partnership agreements with the Minnesota Fruit and Vegetable Growers Association (MFVGA) and the United States Department of Agriculture – Risk Management Agency (RMA). These institutions are equal opportunity providers.
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The University, including the Minnesota Extension Service, is an equal opportunity educator and employer. ©1999-2005 Minnesota Extension Service, University of Minnesota. All rights reserved. Contact copyright@extension.umn.edu for information on reproduction or use of this material.