Ag PhD’s Crop Scouting Reports
Check Below for the Daily Crop Scouting Report for Your Area.
Crop Reports are updated daily Monday through Friday, May 1 – July 15. From July 15 – August 31, the report will run weekly.
South Dakota
Aberdeen, SD

Aphids are a real problem in the Aberdeen area. In some areas, fields with non-treated soybeans have more than 250 aphids per plant. If you have even 50 aphids per plant, spray them now! Aphids multiply extremely fast, especially in cool weather like we will have this week. Treatment is cheap and soybeans are worth good money, so keep them protected.
Mike Erickson
Photo: Mike Erickson, Joe Gustafson & Randy Williams
Baltic, SD

Most of the earlier-planted corn has reached “Brown Silk.” It is now safe to apply 2,4-D products with drop nozzles to control late-emerging broadleaf weeds.
Michael Drey
Photo: Lee Fischer, Rob Fritz & Mike Drey
Centerville, SD

Aphids are showing up in about every field that we have been in. Silencer, Declare, Asana and Endigo are all great products when treating for aphids. If you’re not scouting now, then it would be good idea to start scouting your fields to protect your investment.
Chris Robinson
Aphid numbers continue to increase. In some fields, the crop is beginning to canopy, and we will need to switch from the pyrethroids to the Lorsban-type products. It will take the gassing and fuming action to reach the lower portion of the plants in the denser canopy.
Steve Lee
Photo: Travis Boerger, Steve Lee & Chris Robinson
Freeman, SD

Growers in the area are still spraying for soybean aphids. Aphid numbers vary from field to field, ranging from almost none to hundreds per plant. The numbers are rising in the cooler weather, so continue scouting. If the numbers are at threshold, spray!
Chad Waldner
Photo: Mitch Rayman & Chad Waldner
Gettysburg, SD

If you are seeing buckwheat in your winter wheat stubble, Distinct at 3 oz. per acre does a good job for control.
Kyle Hawkinson
Photo: Colby Kaup & Kyle Hawkinson
Huron, SD
Aphids are starting to reach threshold levels around the area. We’re also finding a fair amount of grasshoppers, especially in field borders. Insecticide treatments are rather inexpensive and can be easily tankmixed with other herbicides and fungicides.
Jason Leyendecker
Photo: Alan Williams & Jason Leyendecker
Kimball, SD

Aphid numbers are on the rise. Make sure you are scouting your beans on a regular basis. Consider Silencer at 3.84 oz. per acre or Declare at 1.54 oz. per acre for cost-effective control against these yield-robbing bugs.
Joe Fox
Photo: Norland Hofer & Joe Fox
Roscoe, SD

Seeing lots of bugs in all the crop. Don’t forget that insect feeding wounds are often a place where disease can enter the plant. Consider using a fungicide as you’re making your insecticide application. We’ve seen much better yield response spraying both together.
Darren Hefty
Watertown, SD

If you have aphid counts of over 40 per plant, it’s time to spray. Use Silencer at a rate of 3.84 oz. per acre – a gallon will treat 33 acres.
Russ Werning
Photo: Jack Beutler, Matt Falck & Russ Werning
Minnesota
Breckenridge, MN

When spraying prevent plant acres, make sure you’re looking at the plant back restrictions on the chemicals you are spraying, so you don’t have any problems the following year.
Tammy Buchholz
Photo: Grant Loff & Tammy Buchholz
Fairmont, MN

We have had several calls about waterhemp starting to poke through the top of soybean fields around the area. If you are having a hard time with this weed, think about using a pre-emerge herbicide followed by Roundup and a residual herbicide. It appears as though the two passes of Roundup are no longer as effective on these fields.
Mike Bates
Photo: Hans Hinrichsen, Mike Bates & Steve Draper
Hancock, MN

The second application of sugar beet fungicide has begun in the area. Super Tin at 5 oz. per acre is the product of choice for cercospora.
Nathan DuHoux
Photo: Nate DuHoux & Wes Jepsen
Janesville, MN

Scout your fields for soybean aphids, bean leaf beetles, and spider mites. We are finding many areas in fields with high soybean aphid populations. There are many insecticide options to control these pests, such as Silencer, Declare, and Lorsban Advanced.
Riley Carlson
Photo: Riley Carlson & Todd Traynor
Marshall, MN

Soybean fields are getting sprayed for aphids in our area, but do not overlook your corn because corn also has had higher numbers of corn aphids in them as well. Corn aphids can cause yeild loss in corn. Be looking to make an application of insecticide of a threshold of 500 or more.
Dave Timmerman
Photo: John Wiese, Dustin Krick, Mike Homandberg & Dave Timmerman
Olivia, MN

This is excellent reproductive weather for soybean aphids. Check your fields for populations and recheck early-sprayed fields for re-infestations. Silencer at 3.8 oz., Declare at 1.5 oz., or Lorsban Advanced at 1 pint will all be effective treatments.
Dean Simonsen
Photo: Dean Simonsen, B. Sham Moteelall & Mark Kells
Ulen, MN

We’ve got some guys about to make a second application for aphids using Kendo at 3.2 oz. Many of these guys are finding spider mites out in the field. Make sure to keep an eye out for these pests, as well. If you find them, add 4 oz. of Lorsban to your aphid application.
Greg Peterson
Photo: Kevin Harder
Winthrop, MN

Protect your investment by putting a fungicide on. Quadris and Headline are preventative products. Quilt and Stratego YLD have a dual mode of action with a preventative and curative.
Dave Worth
If you are already going out to spray soybeans for aphids, consider adding a fungicide to your mix! This year, conditions are high for soybean diseases. Stratego Yield or Quilt are great options that are both preventative and curative products.
Dean Christiansen
Photo: Dean Christiansen, Dave Worth & Roger Elliott
Montana
Great Falls, MT

When spraying RT3 pre-harvest, make sure you do not apply more than 22 oz. per acre and allow 7 days until you harvest your wheat or barley. This is not recommended if you are planning on using the wheat or barley for seed.
Chad Irwin
Photo: Brian Schlagel & Chad Irwin
Sidney, MT

We have unfortunately been getting some horrific hail storms and tornados that have been less than kind to our crops. Sugar beets are among the most-affected crops, and it is important to remember when the leaves are damaged and lacerated, disease has an open door to enter the plant. Apply a fungicide such as Eminent at 13 oz. per acre to alleviate the disease pressure on these stressed out plants.
Stephanie Garvey
Photo: Barry Holzworth, Stephanie Garvey & Paul Gebhardt
Iowa
Renwick, IA

I have been out looking at soybean fields, and the aphid numbers are climbing! On the fence about what to do? For less than the cost of a bushel an acre, you can use any of these insecticides: Cobalt at 16 oz./A, Lorsban Advanced at 16 oz./A, Hero at 5 oz./A, Declare at 1.54 oz./A or Silencer at 3.84 oz./A. Then, you can get a good night’s rest knowing your fields are sprayed.
John Kauffman
Photo: John Kauffman & Sara Cibert
Sheldon, IA

I found spider mites in a field near Hull. Spider mites will need a product like Lorsban to control them.
Tim Overmire
Photo: Tim Overmire, Leon Bolkema & Adam Sauer
Idaho
Buhl, ID

Irrigation on potatoes at this time of year can be really critical. Scout your fields daily to make sure we don’t overwater this month.
Van Wiebe
Photo: Steve Ostrander, Mark “Zach” Zacherisen & Van Wiebe
Nezperce, ID

If you apply Prosaro for head scab, make sure to wait at least 30 days after your application to harvest your crop.
Chad Doggett
North Dakota
Jamestown, ND

Keep an eye out for aphids. Many guys are having to make a second application to take out a second flush of these pests.
Gene Mittleider
Photo: Gene Mittleider
Lisbon, ND

For anyone experiencing any grubs, whether they are in gardens, lawns or yards, Dylox 6.2 is a granular insecticide that works great.
Brian Weight
Photo: Brian Weight & Chris DeFehr
Mohall, ND

Soybean aphids are getting very serious in most fields. Sixteen ounces of Lorsban or 13 ounces of Cobalt is what most people are using. The fuming action of these products helps to get to the bottom of the plants and under the leaves.
Also, it is not too late to plant cover crops. The ROI will not be as high with the shortened growing season but it will still be beneficial to plant now.
Joe Ramer
Photo: Jason Huber & Joe Ramer
Pembina, ND

Keep watching for aphids. Even if you’ve sprayed already, they can come back to a sprayable threshold.
Blake Younggren
Photo: Blake Younggren, Bryan Younggren & Jon Warner
Washington
Farmington, WA

Most of the winter wheat is reaching the hard dough stage near our location. This is the timing for making a glyphosate application as a pre-harvest burndown. Remember that the product must be applied 7 days prior to harvest.
Jeff Bruce
Photo: Jeff Bruce
Quincy, WA
Using a growth hormone product like AC-97 or MegaGro in addition to a foliar feed on beans is a good choice.
Sam Krautscheid
Photo: Sam Krautscheid


