Insects, Savings & Support for Southwest MN Growers

August 7, 2025 Edition

We're cruising into the back half of the season, and while things are looking solid in many spots, there’s still plenty of opportunity — and risk — in the field. Here's what to keep an eye on this week across Southwest Minnesota:

Corn: Looks great — but don’t get comfortable

Your corn is moving fast and looks strong — but now’s not the time to coast.

Scout for corn rootworm — especially in continuous corn acres. Root feeding is showing up, and it's sneaky. Dig some plants, split the roots, and check for feeding or lodging.

Many fields are nearing or already in dent stage. Full maturity is around the corner, so watch kernel development and tip-back.

Yield monitor calibration — Get this done now, before the combine rolls. It matters.

Keep notes on hybrids showing performance differences — it’ll help with 2025 planning.

Soybeans: Aphids are moving — fast

Aphid pressure is escalating across the region — and they can double in population every couple days under the right conditions.

Scout now!

Line up aerial apps now with insecticide in the tank. Waiting too long can mean yield loss.

Fungicide? We’re on the backside of R3. If you're still considering it, talk to your agronomist — the ROI window is closing, but there may still be opportunity.

Watch for Sudden Death Syndrome (SDS) and white mold, especially in thick canopies with wet soil.

Fall Fertilizer: Lock it in now

Early booking = early savings. Dry and NH3 programs are lining up now.

Planning now means smoother fall execution — and less stress when the weather turns.

BONUS: If you want us to apply NH3 this fall and chisel plow your field before our bar shows up, you’ll get a discount on application. Talk to your agronomist for details.

Chemical & Equipment Returns – Due August 22

Return any equipment and unused chemical to receive credit on your account. No credit on cash-and-carry products.

Nurse trailers

Pumps

Spreaders

Liquid fertilizer trailers

This helps us prep for fall, complete inventory, and make sure all gear is field-ready for next season.

Biofuels Awareness Day – Co-hosted by Lyon County Corn & Soybean Growers

Join us Monday, August 11th for a Biofuels Pump Promotion at Ag Plus Marshall Main from 11am - 1pm!

85¢ OFF E85

88¢ OFF Unleaded 88

Pump 20+ gallons and snag a FREE Hunk of Pizza, FREE 32oz Fountain Drink and 1/2 price car wash.

The Marshall Radio Road Show will also be live on location with additional giveaways. Be sure to stop by our Marshall c-store by the Hitching Post on Monday from 11 AM to 1 PM!

Come support ethanol fuels that are supporting you — our growers and local farmers.

Contact an ag plus agronomist

ABOUT

Corporate Office
1100 East Main Street
Marshall, MN 56258

(507) 532-9686

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