Blog

Ashley Dean
February 21, 2020 5:16 PM

Erin Hodgson
February 21, 2020 5:16 PM

Iowa State University’s IPM Team has monitored field crop pests for a long time. The pests have changed over the years, but our goal is the same: to help inform farmers about pest activity in Iowa. Our moth trapping efforts target migratory moths. Black cutworm monitoring is a long-standing...

Crop Production, Insects and Mites

Tyler Donovan
February 21, 2020 12:59 PM

Emily Heaton
February 21, 2020 12:59 PM

Current and Future Miscanthus in Iowa


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Crop Production

Warren Pierson
February 13, 2020 11:46 AM

Do you have plans for March 7th? If you’re already experiencing cabin fever, come do something productive with your day by attending the Field Crop Scout School hosted by Iowa State University Extension and Outreach. Whether you’re an experienced scout or new, there’ll be something...

Crop Production, Insects and Mites, Plant Diseases, Weeds

Bob Hartzler
February 4, 2020 8:02 AM

After a fairly long hiatus, a tweet from Corteva has earned a coveted spot in the HOS. This is a tough one since the company has used a farmer’s quote to disregard the principles of integrated weed management, rather than someone in marketing dreaming up an irresponsible advertisement.

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Weeds

Justin Glisan
January 21, 2020 4:39 PM

Dennis Todey
January 21, 2020 4:39 PM

Initial February temperature and precipitation outlooks from the Climate Prediction Center (CPC) indicate elevated probabilities of colder than average conditions across much of the Midwest, including Iowa (not pictured). On the precipitation side, there’s a slightly elevated signal for drier...

Crop Production

Meaghan Anderson
January 21, 2020 4:19 PM

Rebecca Vittetoe
January 21, 2020 4:19 PM

Elizabeth Danielson
January 21, 2020 4:19 PM

Manufacturers of the dicamba products labeled for over-the-top use in soybean (FeXapan, Xtendimax, Tavium, Engenia) are again offering live and online training sessions for pesticide applicators planning to use those products during the 2020 growing season. Live sessions are offered during...

Pesticide Education, Weeds

Rebecca Vittetoe
January 17, 2020 1:21 PM

Meaghan Anderson
January 17, 2020 1:21 PM

This winter we will be hosting several soil fertility workshops around the state to help farmers better understand how to interpret soil test results and make soil fertility recommendations.

Join us for one of these workshops to:

  • Learn how soil tests are done and what they...
Soil Fertility

Bob Hartzler
January 13, 2020 4:30 PM

Although ‘pure’ botanists often scoff at the use of common names for plants, common names are a useful tool when working with domesticated plants and weeds since the pool of species is relatively small.  One problem with common names is they may vary from location to location. When I started...

Weeds

Kristina TeBockhorst
January 3, 2020 11:47 AM

Shawn Shouse
January 3, 2020 11:47 AM

Many producers put grain into their storage bins last fall at higher moisture contents than normal, due to late crop maturity and less in-field drying in 2019. For grain stored wetter than recommended for storage through the winter months (above 15% for corn and 13% for soybeans), it is...

Grain Handling and Storage

Ethan Stoetzer
January 3, 2020 8:47 AM

The new crop season is just around the corner, and we want you to be prepared for the yield-reducing disease, insect and weed challenges affecting your fields. That's why the Iowa State Extension Store is making available, for a limited time, the ...

Crop Production, Insects and Mites, Pesticide Education, Plant Diseases, Weeds

Ethan Stoetzer
December 10, 2019 9:18 AM

The Crop Protection Network (CPN) has added an additional publication series to its wealth of print and PDF resources. Beginning in 2020, CPN’s online library will feature annual Research Updates, highlighting advancements in...

Crop Production, Insects and Mites, Plant Diseases, Weeds

David Baker
December 2, 2019 10:22 AM

Passing a farm operation to the next generation is usually one of the biggest and most challenging decisions farm families will ever make.

Many things are at stake – money, emotions, goals and lifestyles – and farm families need to think critically about where they’re at today, and where...

Crop Production

Ethan Stoetzer
November 26, 2019 9:25 AM

Soybean seedling diseases are a major yield-reducing factor in soybean production. In 2017 alone, it was estimated that over 50 million bushels of grain were lost in the U.S. as a result of seedling diseases, and nearly 2 million bushels were lost in Ontario, Canada. As weather patterns — such...

Crop Production, Plant Diseases

Emily Heaton
November 22, 2019 9:58 AM

Danielle M Clark (Wilson)
November 22, 2019 9:58 AM

Register for the University of Iowa Biomass Fuel Project Update Meeting! 

Friday December 13th @ 10-11:30AM (public meeting)

Linn County Extension Office

383...

Crop Production

Charles R Hurburgh
November 13, 2019 3:31 PM

Update Note: This was first published November 13, 2019. As of November 19, 2019 we are expecting a few days of warm weather; dewpoints will get above freezing. It would be counterproductive to keep the fans on during this period.

The late planting has caused higher moisture corn...

Grain Handling and Storage

Ethan Stoetzer
November 12, 2019 1:11 PM

The Crop Protection Network (CPN) recently launched its new “Field Crop Disease Loss Calculator” research tool, complete with years of historical data for estimated losses caused by disease in corn and soybeans in the U.S. and Ontario, Canada...

Crop Production, Plant Diseases

Bob Hartzler
November 11, 2019 7:08 AM

Waterhemp’s rise to the Cornbelt’s worst weed is one of the Cornbelt’s more fascinating weed-related events over the past 40 years.  Waterhemp (Amaranthus tuberculatus) is native to the United States but is a relative newcomer to crop fields. Prior to waterhemp’s ascent, redroot pigweed...

Weeds

Brian Dougherty
November 4, 2019 12:08 PM

As fields get harvested many farmers are making fall manure applications. Managed properly, manure can be an excellent source of valuable nutrients, but it can also pose risks to water quality when applied long before a crop is present to take up the nitrogen provided by manure. This ICM Blog...

Soil Fertility

Justin Glisan
November 4, 2019 8:18 AM

Dennis Todey
November 4, 2019 8:18 AM

The meteorological winter (December-January-February) temperature and precipitation outlooks were recently released by NOAA’s Climate Prediction Center (CPC). In winter, the phase of the El Niño Southern Oscillation (ENSO) climate signal typically influences temperature and precipitation...

Crop Production

Rebecca Vittetoe
October 30, 2019 8:30 AM

Erika Lundy
October 30, 2019 8:30 AM

Denise Schwab
October 30, 2019 8:30 AM

Beth Reynolds
October 30, 2019 8:30 AM

With a growing number of cover crop acres across the state of Iowa, some producers are looking to cover crops to help extend their grazing season. While cover crops have the potential to be an extra forage source and reduce feed costs, there are challenges with using cover crops as a forage...

Crop Production

Charles R Hurburgh
October 29, 2019 5:48 PM

Recent reports have Iowa corn at about 40% harvested and Iowa soybeans about 66% harvested. The late crop has corn moistures running from around 19% in...

Grain Handling and Storage

Kristina TeBockhorst
October 29, 2019 3:06 PM

Shawn Shouse
October 29, 2019 3:06 PM

You may be in the thick of harvest, but don’t forget to cool stored grain. With forecast average day/night temperatures of 35 to 40 in the coming ten days, the time is right to cool any grain that went into the bin at higher temperatures. This article will review some tips and rules of thumb for...

Grain Handling and Storage

Mark Licht
October 29, 2019 11:40 AM

It doesn’t happen every year, but it does occur – snow accumulation before harvest is complete. Here are some considerations and tips for dealing with this unique situation:

Crop Production

Meaghan Anderson
October 22, 2019 2:43 PM

Angie Rieck-Hinz
October 22, 2019 2:43 PM

Rebecca Vittetoe
October 22, 2019 2:43 PM

Did insects bug you and your crops this year? As the 2019 growing season winds down, ISU Extension field agronomists are seeking information from producers and retailers across the state regarding what the most problematic insect pests were this growing season.

Give us...

Insects and Mites

Bob Hartzler
October 19, 2019 8:58 AM

Combines are the most important seed dispersal mechanism for weeds in our cropping system.  While a small amount of seed may leave the field with grain, most weed seed that enter the combine with the crop are either spread throughout the field or carried to other fields. Harvest weed seed...

Weeds

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