In this Issue:
VEGETABLE NEWS
Vegetable Insect Update
APPLE NEWS
STRAWBERRY NEWS
NOTE: THERE WILL BE 2 MORE ISSUES OF THE NEWSLETTER, AUGUST 30th AND SEPTEMBER 13th.
| Vol 1 No. 13 | August 16, 2004 |
Vegetable Insect Updates
Eric Burkness Suzanne Wold-Burkness, and Bill Hutchison, Dept. of Entomology, University of Minnesota, St. Paul, MN
With the cold temperatures across the state this week; insect activity has decreased in most crops. However, insect feeding and egg lay may still continue for most pests, just at a reduced rate.
Squash Bug: During this time period in previous years, we have seen populations of squash bug increase and plants begin to wilt from squash bug feeding. However, this year at Rosemount, we have not observed any wilting plants or squash bug nymphs or adults in cucurbits. Despite apparent low populations, growers should watch the developing squash/pumpkin fruit for late-season infestations of both squash bug and striped cucumber beetle feeding.
For more information on squash bug, see the VegEdge fact sheet at: http://www.vegedge.umn.edu/vegpest/cucs/squabug.htm
Potato Leafhopper (PLH): In snap beans at Rosemount, PLH adult and nymph counts remain high in untreated plots.
Bean Leaf Beetle (BLB): The first generation of BLB is in full swing. Defoliation is noticeable in all snap bean plots at Rosemount and feeding damage on pods is present at low levels.
European corn borer (ECB) and Corn Earworm (CEW): The ECB and CEW flight at Rosemount has remained low for the past 3 weeks. For additional information see the 2004 Moth Flight site for up-to-date information on moth flights (http://vegedge.umn.edu/2004/moth.htm).
Cabbage looper (CL): On late-planted cabbage, CL populations in untreated plots remain above threshold and some late instar larvae are beginning to pupate. In treated plots, we continue to see egg lay. With the cooler temperatures, we expect egg lay and larval development to slow down but when temperatures rebound we should expect egg lay and feeding damage from larvae to pick up again.
ACKNOWLEDGEMENTS
Co-Editors: Bill Hutchison, Department of Entomology,
University of Minnesota, hutch002@umn.edu
Jeanne Ciborowski, Minnesota Department of Agriculture, Ag. Resources Division,jeanne.ciborowski@state.mn.us
Suzanne Wold-Burkness, Department of Entomology, University of
Minnesota, woldx018@umn.edu
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., Tuesday 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/default.htm
Partial funding for this publication is provided through partnership agreements with the Minnesota Fruit and Vegetable Growers Association and the United States Department of Agriculture – Risk Management Agency (RMA) and the RMA Community Outreach and Assistance Partnership Program. These institutions are equal opportunity providers.
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Last Revised August 13, 2004.
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