In this Issue:
GUEST ARTICLE
VEGETABLE NEWS
Time to Watch for European Corn Borer Flights
GRAPE NEWS
STRAWBERRY NEWS
Strawberry Sampling Data from MDA and Grower Cooperators
What Fungicide Do I Choose for Disease Control in Strawberries?
APPLE NEWS
| Vol 2 No.4 | May 30, 2005 |
Strawberry Sampling Data from MDA and Grower Cooperators
Location |
Date Sampled |
Strawberry Bud Weevil |
Strawberry Bud Weevil |
Tarnished Plant Bug (TPB) |
Thrips |
Avg. # clipped buds/2ft2 |
Adult weevils in field |
nymphs/flower cluster |
Avg./flower bud |
||
Fairhaven ** |
5/23/05 |
0.13 |
0 |
0.9 |
1.4 |
White Bear Lake *** |
5/26/05 |
1.0 |
3 |
0 |
0.2 |
*Sampling is done using standard sampling techniques for each pest. ** Plants are at about 50% bloom. *** Plants are at about 80% bloom and 5% fruit set. Data collected at a given cooperator site is a snap-shot” of that particular field and does not represent other fields in that area.
Strawberry Insect Pest Information from Strawberry IPM Project Cooperators
Thaddeus McCamant, Specialty Crops Management Specialist, Northland Community & Technical College
Summary: Strawberry plants started blooming across the state during the week of May 23. Some varieties are approaching full bloom in southern Minnesota. In northern and central Minnesota, the Cavendish and Annapolis are starting to bloom, but other varieties are still in the early bud stage.
As the fields begin to bloom, carefully monitor your plants. Clipper weevils are starting to damage strawberry plants even in fields that are still four days away from 10% bloom. The tarnished plant bug nymphs are also hatching early, and approached threshold levels in several fields that were only at 10% bloom.
Location |
Date Sampled |
Strawberry Bud Weevils |
Tarnished Plant Bug |
||
|
|
#clipped buds/2ft2 |
Adult weevils in field |
Nymphs/flower cluster |
Adults/trap |
Faribault |
5/17 |
0 |
0 |
0.125 |
0 |
Hastings |
5/25 |
.5 |
2 |
0.14 |
7 |
Monticello |
5/25 |
0 |
0 |
0 |
0 |
Hinckley |
5/24 |
trace |
1 |
0 |
0 |
Alexandria |
5/25 |
|
|
Too wet |
|
Wadena |
5/24 |
0 |
0 |
0 |
1 |
Grand Rapids * |
5/26 |
xxx |
xxx |
xxx |
xxx |
* Nothing to check, strawberries still not developed.
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.
DISCLAIMER
Reference to products in this publication is not intended to be an endorsement to the exclusion of others which may have similar uses. Any person using products listed in this publication assumes full responsibility for their use in accordance with current manufacturer directions.
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.