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 1. From July 1 – August 31 the report will run weekly.

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Perry Galloway, Joey York & Anthony Cassinelli

I am seeing a more than usual amount of sheath blight in hybrid rice this year.  This is probably due to all the rainy weather we have had so far.   We will continue to monitor weekly.   With the weather getting hot and drier it may slow way down.   Hybrid rice is usually so aggressive that it just out runs the disease, however, we will need to protect at least the top three leaves through heading and grain fill.  Keep an eye on it; we may have to apply a fungicide.

Joey York


Tyson Goossen, James Jarvis, TJ Young, Van Wiebe

Corn is starting to tassel; there have been 1,150 – 1,200 growing degree days around the valley.  Pictured is an ear of 95 day corn planted on May 4th at 18 around by 36 long.  Now we just have to get to a complete fill.  Weekly tissue sampling has shown a greater draw down of nitrogen along with key micronutrients. We will try to maximize kernel fill with 30-50 units N, 1 pt zinc, 1 pt boron, and 1 qt AccesS. This will be chemigated through pivot. We are also looking out for spider mites as this is when they normally start. Some farmers have already applied 2 oz of Zeal/acre which should give protection until they start chopping corn for silage. 7 21 tassel

Andrew Jarvis


Jay Winland, Tyler Smith & Evan Zimmerman

I am strongly encouraging growers to get out in their fields this week and take insect counts. The pressure in our area has gone up quite a bit in the last two weeks. For around $2-$3 an acre for insecticides you almost can’t afford not to spray for insects if you have moderate to high pressure. This is a relatively small investment that could have a strong ROI this year.

Tyler Smith


Several of our southern growers are beginning to apply Headline Amp to their corn fields.  BASF recommends the use of adjuvants when applying post tassel or VT stage.  Post tassel is defined as when the tassel’s last branch is completely visible outside the whorl. BASF recommends that post tassel applications should include non-ionic surfactant at the rate of 1 pt/100 gallons of solution per acre when applying Headline Amp by ground.  If aerial applying, use a 1 pt/acre of crop oil. Remember that NO adjuvant should be applied from the V8 to VT stage.  Be safe!

Mike Denton

Mike Denton, Kyle Bickett, John Becker & Matt Denton


Tim Nuehring, Mike Jaeger, Brian Pottebaum & Lynn Weier

No crop scouting report available.


Bugs are beginning to show up in the soybean fields.  They have not reached threshold levels for a single species yet but if you get a low number of multiple bugs, a spray may be justified, especially with the price of treatment being so low.

Adam Sauer

This week in our area, I am focusing on seeing that every last acre gets on a summer schedule for scouting. Many replant/wet areas need attention mechanically or chemically to address late flushes and ensure a thicker weed seed bed doesn’t develop going into next year. Additionally, it is just as important now to keep a lookout for insects and stressed crops. Finding and pinpointing crop issues now is going to give you the most time to respond and identify what weakness (genetics, nutrition, insects) made your crops susceptible.

Connor Majerus

With soybeans at or near the full flower (R2) stage, now is a good time to be spraying a fungicide. With fungicide prices coming down from last year and some rebates still available, it is a valuable asset to keep in your program.  Although a direct increase in yield may not always happen, an increase in plant health, aid in preventing disease, and overall better plant quality will help the plant stay healthier lasting all the way through harvest. When making this pass across the field, for a few extra dollars you can add an insecticide into the tank. Lower prices mean lower thresholds, and can help save yield.

Nathan Kloft

Connor Majerus, Adam Sauer & Nathan Kloft



Tia Johnson and Tammy Buchholz

No crop scouting report available.


Aphid populations are growing in the area. Most growers I’ve talked to say they’re gaining more yield by spraying when the aphid populations are lower rather than waiting until a 250 aphid/plant threshold is met.  They believe that threshold is way too high considering today’s crop prices and current yield goals. Insecticide is cheap and can easily be a yield saver.

Sam Geistfeld

A few farmers have been checking fields for aphids and are starting to find low numbers present in fields.  Start checking fields next to wooded areas and lakes or creeks.  The 3 main options for this year: Lorsban, which has very quick kill if numbers get big fast, however, the residual probably isn’t as good as others and it has a strong odor to it.  A second option is a generic Capture for the longest residual and least amount of odor, but it sometimes has trouble penetrating the dense canopy.  Last: generic Warrior products are extremely cheap with decent residual, but the University of Minnesota has reported some resistance to this so if you’re in that area you may want to check and re-assess your options.

Mike Bates


Evan Oberdieck, Steve Draper, Sam Geistfeld, Mike Bates & Hans Hinrichsen



Nathan DuHoux, Aaron Giese & Adam Gibson

Area crops are closing in rows now which means canopy for disease and fungi to thrive under wet and warm conditions.    A tool such as the CLS graph on the Southern Minnesota Beet Sugar Cooperative website is a great way to see likeliness of fungi infection in your crops.  Use the weather forecast, your crop condition, and stage to determine fungicide spray timings on white mold in dry beans as well as soybeans.

Adam Gibson


We are seeing aphids starting to pop up in local soybean fields with most fields seeing 2-5 aphids a soybean plant. Continue to scout fields to determine when you need to make a timely application of insecticide.

Ray Johnson

Todd Traynor and Ray Johnson


Dave Lunning & Grant Lunning

Japanese beetles have been seen around field edges quite a bit lately and are becoming more prevalent south into Iowa and Wisconsin. Growers are having great success controlling them with a full rate of bifenthrin (Capture).  This will also kill the low level of soybean aphids that are beginning to appear.

Grant Lunning


I am still seeing small numbers of aphids in soybean fields around the Marshall area. The highest numbers have been around trees, ditches, and new growth of soybeans that have been hailed off. Be scouting these fields to keep your numbers in check.

Jeremy Jensen

John Wiese, Jeff Gladis, Mike Homandberg, Jeremy Jensen & Dave Timmerman


Aaron Spronk & John Scheibel

Corn is beginning to tassel and soybeans are blooming; now is the time to scout for insects and be ready to pull the trigger on a fungicide.  In soybeans, try to apply at full flower to beginning pod set and in corn, full tassel.  If the field is not quite at full tassel you can either wait or leave out the adjuvant.

John Scheibel

It is time to start scouting your soybeans for aphids. You may also want to consider using a fungicide if your soybeans are in the R1-R3 stage.

Aaron Spronk

Thief River Falls

Aphid numbers have varied from seeing none in a field, to having “hotspots” in parts of some soybean fields. As we continue the second spray for our area, scout your fields before you make your herbicide application to see if you have aphids or any other pests out there.  Pyrethroids are an inexpensive option to control aphids, but there are other good options out there as well for good control.

Jordan Swanson

If you are out scouting fields and are unsure of a weed or pest that you come across, download the Ag PhD Field Guide to help you identify the weed or pest.

Rachel Klein

Jordan Swanson & Rachel Klein


No crop scouting report available.

Allen Zimmel & Greg Peterson


Dean Christiansen, Tyler Gasow & Matt Vogel

The AgPhd Field Day is next week, Thursday,  July 27. If you do not want to drive to Baltic, SD all alone, there will be a bus leaving from our location at 5 am and returning around 6:30 pm. If you are interested in riding the bus, contact one of the employees at the Winthrop site and we will get you signed up.

Tyler Gasow

With high humidity and temperatures in the forecast for this week, make sure to check your herbicide labels for proper adjuvants for these conditions. Products such as MSO can burn the crop leaf surface more than a crop oil or non-ionic surfactant.

Dean Christiansen

There have been some reports of Goss’ wilt in the area. A fungicide application will not help with this disease so make sure to select corn varieties that have a good package to reduce this disease in your corn acres next season.

Dean Christiansen


Albert Duenne & Kara Wolford

When applying a product like Cobra or Ultra Blazer, consider using a product like MegaGro at 2 oz/acre to help the soybean plant deal with stress that may occur after application.

Albert Duenne

XtendiMax and Engenia are two very effective products when it comes down to weed control in dicamba-tolerant soybeans. Many farmers are hoping that the companies that produce these products can get a grip on the volatility issues.  Without dicamba, late season options for pigweed are often down to Cobra and Cadet which aren’t nearly as effective as dicamba.

Albert Duenne


We’ve recently revisited soil samples from some soybean and cotton fields from last fall. When considering foliar applications of pesticides, don’t forget that this is a perfect opportunity to add any micros such as zinc, manganese, boron, or other nutrients that were showing as deficient in previous soil samples.

Danny Stevens

With cotton, there is concern about how much nitrogen was lost due to the rain.  This can be determined by tissue sampling. Results are usually back within 48-62 hours. In the past, I personally have applied up to 2 gallons of 32% N. This should be applied along with 15 gallons of water, late in the afternoon, with temperatures 85 degrees or less. This N is available to the plant within 24 hours of application.

Danny Stevens

Plant bugs in cotton are still an issue and probably will be for the next few weeks. It’s best to switch up chemical application to prevent resistance buildup of any certain product. When making these applications, it is good to add in any micronutrients (boron) along with growth regulators.

Danny Stevens

Hayti - Barry Gilmore Danny Stevens Christie Irions Eric Luye

Danny Stevens, Christie Irions, Eric Luye, and Barry Gilmore


No crop scouting report available.

Chet Hill


We are starting to see a few fields that need to be treated for western bean cutworms.  The window of application for control is very narrow so make decisions quickly.

Kody Urwiler

Rusty Reifenrath & Kody Urweiler

West Point

Jared Steffensmeier, Chase Utemark & Jacob Gubbels

If you’re looking for plant health and better standability, there are some cheap options for fungicide which have come down in price.  We’ve also had good luck with the newer products like Priaxor and Trivapro.

Jared Steffensmeier


Hillsboro - Brian Josewski and Ryan Pierce

Brian Josewski and Ryan Pierce

Soybeans are in the R1-R3 stage.  R2 and up to R5 is the perfect timing to try using a fungicide.  Some popular choices are Priaxor or Preemptor.  Fungicide has proven to be a great return on investment.  The yield bump is often coming from the soybean size itself.  The fungicide is adding to the plant health, which in turn is making the beans bigger meaning you are capturing more beans from the upper part of the plant in your combine.  We have proven and seen nearly every year that this has been in the 3-5 bushel range.

Ryan Pierce


Roundup resistant marestail has made its presence known this year. Many fields I’ve seen have been able to keep it under control with Engenia if they were Xtend soybeans. Roundup soybeans have been more of a challenge. If marestail is an issue this year I would recommend switching to all Xtend soybeans next year.

Emily Kline

Emily Kline, Chad Weckerly, Mariah Mertz & Brandon Wall


Adam Ladwig, Brian Weight & Spencer Schultz

With the hot and dry weather that we are having, make sure to scout for spider mites. They aren’t as easy to see with the naked eye as the insects that we generally scout for. You’ll need to use a white piece of paper and put it under a few soybean plants and shake those plants to see them moving around on the paper easier. For a better look at them, use a 10X magnifying glass.  Capture, Hero, and Lorsban are effective control options.

Adam Ladwig


For field pea producers, the pre-harvest application is rapidly approaching.  There are a number of different desiccation options you can use including Roundup and Gramoxone or Roundup and either Sharpen or Valor.  The Sharpen or Valor will give you some residual control.

Ron Hefta

A very prominent female farmer southwest of the greater Antler region has found many aphids in her spring wheat.  Nufos or Losban will kill them.

Ron Hefta

Charlie Adams, Andy Undlin, Ron Hefta and Mark Henry


Thistle caterpillars are still defoliating soybean and sunflower plants. 3.2 oz/acre of Kendo will take care of them.

Thistle Caterpillar

Joe Ramer

 Jim Sitar, Stephanie Stensgard & Joe Ramer


Jamie Schurhamer & Kevin Schulte

No crop scouting report available.


Kalen Kjellsen & Tanner Johnson

With the heat stress in our area, now is a great time to go out and identify any nutrient or micronutrient deficiencies you may have.  Here are a few to look for: nitrogen deficiency will appear as brown starting at the tip of the lower leaves moving down the center of the leaf often in a V-shaped pattern.  Boron deficiency may appear as rippling along the edges of the leaves.  Potassium deficiency will appear as browning on the edges of the lower leaves, with the center of the leaf still green.

Justin Hanson


Most of the local soybean fields are in the R2 stage. The best time to apply fungicide and foliar products on soybeans is at the R3 stage. I would also be scouting your fields as I have seen soybean aphids in some of the fields that I have been in.

Tyler Koenig

Jerry Weiland, Lee Fischer, Rob Fritz, Mike Drey, Wes Jepsen & Tyler Koenig


Ryan Kusser, Tim Brouwer, Travis Petty & Peter Strom

We have been seeing a few aphids in some soybean fields in the area. The threshold for aphids is really low with cheap insecticide options. Also, with the dry weather, be on the lookout for spider mites in soybeans. Spider mites cause yellow stippling on soybean leaves and webbing may also be on the underside of leaves.

Travis Petty

rop scouting report available.


With insecticide spraying almost in full swing, make sure you are using a minimum of 15 gallons of water per acre if not more.  Coverage is key.

Matt Zilverberg

Lee Dockendorf & Matt Zilverberg


Colby Kaup & Kyle Hawkinson

If you are using high rates of Roundup over beans, consider adding MegaGro at 2 oz/acre to help with crop safety.

Kyle Hawkinson


Most soybeans are flowering now. This means we cannot use Xtendimax or Engenia on any soybeans at this point because it will be off label.

Kyle Wiese

Right-of-way mowing is removing a food source for grasshoppers.  To keep your crops safe from hopper feeding, a strong rate of a pyrethroid chemistry would do the job. 3.84 oz/acre of Kendo or Silencer would stop the feeding.

Alan Williams

Alan Williams, Jason Leyendecker, Norland Hofer & Garritt Dykstra


Joe Fox, Mike Erickson, & Jeremy Nedved

Buctril is an option to consider on sorghum acres with broadleaf issues. Remember to not use crop oil when using Buctril; it will damage your crop.

Mike Erickson

Common ragweed is a persistent and aggressive weed that has the ability to thrive in low moisture conditions. If this weed is a problem in your non-Xtend soybean fields, consider running FirstRate at 0.3 oz/acre to clean it up. Keep in mind that this product is only labeled up until R2 (full flower). Also remember that adjuvant use is paramount in achieving adequate control. 1.2 qts of COC or MSO/100 gal solution along with 2 lb/acre AMS will help with a thorough and complete kill.

Joe Fox

New Underwood

No crop scouting report.

Tyler Price


Many guys still have weeds that are coming up and getting bigger.  About your only choice will be 12.5 oz/acre of Cobra as this is labeled till full flower.

Jack Beutler

Jack Beutler, Beau Wensing and Russ Werning



No crop scouting report available.


The number one weed I see in direct seed fallow is China lettuce.  Chem-fallow involving the addition of a 2,4-D or dicamba with glyphosate is showing much better results than straight glyphosate.  Starting as early as possible and shutting down as the temperature rises through 75 degrees is also showing better results than waiting till 80 degrees.

Dave Dye

David Hinkins, Sam Krautscheid, Dave Dye & Danny Hopkins