In this issue:

Sweet Corn

Snap Bean

Strawberries…brief alert for spider mites

Snap Bean Insect Update

Bill Hutchison, Eric Burkness, Robert Koch & Patrick O’Rourke, Dept. of Entomology, University of Minnesota

Potato Leafhopper (PLH) and Bean Leaf Beetle (BLB) continue to be active throughout southern Minnesota. PLH counts continue to exceed 3-4/sweep at Rosemount. BLB activity, as measured by estimated foliar defoliation in soybeans is illustrated in the following figure. In snap beans, both pests should be controlled adequately by the 2-3 pyrethroid sprays used for ECB and CEW control. However, for snap beans that are not yet flowering, an additional vegetative spray will likely be needed, particularly for PLH. The first “summer” (F1) generation of BLB adults have been active at Rosemount for about 12 days; feeding could continue for another 2 weeks.

Co-Editors: Bill Hutchison, Department of Entomology, University of Minnesota, hutch002@tc.umn.edu
Jeanne Ciborowski, IPM Program, Minnesota Department of Agriculture, jeanne.ciborowski@state.mn.us
Cindy Tong, Department of Horticulture, University of Minnesota, ctong@extension.umn.edu
Production Editor: Suzanne Wold, Research Assistant, University of Minnesota, woldx018@tc.umn.edu

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 directions of the manufacturer

Last Revised August 2, 2002.
The University, including the Minnesota Extension Service, is an equal opportunity educator and employer.©2002 Minnesota Extension Service, University of Minnesota. All rights reserved. Contact copyright@extension.umn.edu for information on reproduction or use of this material.