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Armyworm will lay its eggs in rye and other grasses.  so will black cutworm.  When the rye is plowed under or mowed the larvae will move to whatever food they can find, which could be a newly planted corn field.  Killing the rye a couple of weeks before planting should reduce the damage.  Both of these migrate into Michigan, so paying attention to Extension reports of moth flight could help you make management decisions.

Larry
Larry Dyer
1113 Klondike Ave.
Petoskey, MI 49770
231-347-7162
231-881-2784 - cell
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On 1/30/2013 9:45 AM, Morrone, Vicki wrote:
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Hey field crop farmers-any probs with corn insects if you preceded the crop with rye cover?
Vicki Morrone
Organic Farming Specialist
Center For Regional Food Systems at MSU
480 Wilson Rd. Room 303
East Lansing, MI 48824
517-353-3542/517-282-3557 (cell)


From: Sarah Carlson <[log in to unmask]>
Reply-To: Sarah Carlson <[log in to unmask]>
Date: Tuesday, January 29, 2013 4:52 PM
To: Mid council <[log in to unmask]>
Subject: Winter Rye, Corn and Insects

Who has had issues with corn insects in the spring following a winter rye cover crop?
What are solutions beyond in-furrow insecticide?
---a different cover crop?
---timing of termination?
---nitrogen application timing?
---tillage versus no tillage?
---a cover crop mix?
---corn genetics?

Your thoughts would be appreciated.
Thanks,
Sarah

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