Integrated Crop Management News
 

Document Type

Article

Publication Date

4-23-2007

Abstract

Below normal temperatures and wet conditions, such as Iowa is experiencing this spring, provide ideal conditions for the occurrence of major alfalfa foliar diseases. While producers are waiting for temperatures to warm up and the soil to dry, they should not forget to check their alfalfa fields as the season progresses into May. High levels of foliar diseases in May can cause early defoliation for the first cutting. In a cool, wet spring, spring black stem, Leptosphaerulina leaf spot, and downy mildew are most common in first-year alfalfa crops in Iowa.

Copyright Owner

Iowa State University

Language

en

File Format

application/pdf

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The Iowa State University Digital Repository provides access to Integrated Crop Management News for historical purposes only. Users are hereby notified that the content may be inaccurate, out of date, incomplete and/or may not meet the needs and requirements of the user. Users should make their own assessment of the information and whether it is suitable for their intended purpose. For current information on integrated crop management from Iowa State University Extension and Outreach, please visit https://crops.extension.iastate.edu/.