The small grain survey run jointly across Minnesota and North Dakota is underway. Maps are posted at the above link. Still have some concerns with Cereal Aphids in late wheat, Tan spot and Scab outlook for susceptible wheat varieties.
Watch the later fields of wheat that may still be in the boot stage to heading. Some of these later fields have had large populations of cereal aphids, particularly English grain aphid building for awhile.
For a review of recommended insecticides for aphid management in small grains, a good summary is available in the 2013 North Dakota Insect Management Guide
Tan spot has been the most prevalent disease reported in small grains. Now, Fusarium Head Blight / Scab is also creeping into the picture. Check the disease outbreak forecast map for your wheat (susceptible vs. resistant)
Don't forget that here are the Small Grain Disease Forecasting Models currently available for tan spot, Septoria, leaf rust, and Fusarium head blight.
Report from Bruce Potter, IPM Specialist, SWROC-Lamberton
In the most recent issue of the IPM Stuff 2013-10b, 7/18/2013, Bruce is reporting on armyworm infestations, including reports from SE North Dakota (Richland County). Read more at Bruce’s on-line posting.
Read more in Bruce’s True Armyworm Management summary posted for your reference.
By Jeffrey L. Gunsolus, Extension Agronomist - Weed Science
The wet weather pattern this spring and early summer has left a significant number of acres, especially in southeastern MN, unplanted. Current estimates in southeastern MN project 30% of the tillable acres have not been planted and on many of these acres weeds such as giant ragweed, common lambsquarters and waterhemp are thriving.
Although weeds are beneficial from an erosion control perspective their rapid growth will make seedbed preparation for planting cover crops very difficult and weed seed production potential will challenge even the best weed management tactics available in 2014.
The Crop and Pest Report is a valuable resource for staying abreast of current cropping events. It is a free update that you can subscribe to and receive weekly during the growing season via e-mail. If you are not receiving this, you might want to check out the on-line and newsletter formats that are available and consider subscribing.
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View regional maps summarizing current observations in
Wheat and Barley