Agronomy Articles
Post Applications
By Matt Horstman, Agronomist, Dimock
Hopefully everyone got their crops in the ground this spring and have been receiving some much-needed rain. I know some areas have been more fortunate than others, but I think our trade territory has been blessed with some rain. Post spraying of corn is quickly approaching us and, in some areas, maybe has been going on for a little while already. I just wanted to remind everyone to keep in mind foliar applied nutrients. It may be a good idea to talk with your agronomist and have them pull some tissue samples to see where nutrient levels are at. Helena Chemical Company offers a wide variety of Macro and Micro Foliar Nutrients. All of these products can be tank mixed with your post herbicide which makes it a lot easier to consider putting some in the tank if you can kill 2 birds with 1 stone. Also, something to consider is top dressing corn, if you have been receiving rain and think adding a little extra fertilizer would be an option please reach out to your agronomist and schedule something. We have the ability at every location to spin on some fertilizer for you. As always call with questions and have a great summer.
6/6/2025
Crop Health
By Damien Fuerst, Agronomist, Scotland
Mother Nature has given us some much-needed moisture, but with the moisture it has also brought cooler temperatures. Most of the corn that has emerged doesn’t look healthy, which has been caused by cool temperatures and wet soils. With some sunshine and warm weather, it will grow fast and return to a normal green color so don’t be worried. Be thinking about crop health and what it needs to thrive. Talk to your agronomist about foliar feed products that can improve crop health and yield.
Alfalfa. Most of you have probably seen some unhealthy alfalfa. I have noticed a lot of aphids, alfalfa weevils and weevil larvae. Mustang Maxx is a great product to use with only a three-day pre harvest interval. Some alfalfa has been cut and some is getting ready to be cut. If that’s the case wait for some regrowth and have your local agronomist check it for pest pressure and what will best control them.
5/30/2025
Nutients
By Clay Hespe, Agronomist, Tyndall
The one thing about living in South Dakota is the ability of the weather to switch. If we are into a wetter cycle, you may want to look at top dressing corn to maximize yield. A dry application is the cheapest way to add nutrients to your crop but should be applied early. The more growth the corn gets you may see some burn from urea. Coron and micronutrient mix can be added with an herbicide application or at any stage without the herbicide. If you are thinking of waiting and possibly using a UAN application, you should check on pricing and availability. UAN is currently in tight supply and has a higher cost of nitrogen than the other forms of N. We can also do a tissue test to see what nutrient may be short, but we will have to wait until the V4 to V5 stage to get an accurate test. Talk to your agronomist to see which may be best for you.
5/23/2025
Agronomy Staff
 Jeff Schmiesing
Agronomy Dept. Manager
Cell: 605-940-7665
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 Allen Johansen
Agronomy Dept.
Purchasing Manager
Cell: 605-661-4882
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