Blog

Paul Kassel
June 1, 2021 10:51 AM

Frost injury occurred Saturday May 29 across much of the area.  Radiational frost occurs when leaf temperatures actually reach lower temperatures than nearby recorded air temperatures.

 

Frost has occurred

            - along field edges - especially corn...

Crop Production

Rebecca Vittetoe
May 31, 2021 10:43 PM

Virgil Schmitt
May 31, 2021 10:43 PM

Carbon markets and weed management strategies in soybeans will be the featured topics at an upcoming Agronomy Workshop and Crop Advisor Training being offered from 8 AM to noon on June 16 at the Southeast Iowa Research and Demonstration Farm located near Crawfordsville.

...

Crop Production

Ashley Dean
May 26, 2021 12:17 PM

For the first time during the 2021 moth trapping season, more total true armyworm moths were reported than black cutworm moths. During Week 8 of the Iowa Moth Trapping Network, our cooperators reported 109 total black cutworm (BCW) and 128 true armyworm (TAW) moths.

Week 8 report...

Crop Production, Insects and Mites

Rebecca Vittetoe
May 25, 2021 10:02 AM

While the rain may have limited fieldwork across the state this past week, it was much welcomed in many areas that have been on the drier side. Most of the corn and soybeans that have been planted are now emerged. Two of the more common issues seen in fields this past week included alfalfa...

Crop Production

Sotirios Archontoulis
May 24, 2021 2:43 PM

Mark Licht
May 24, 2021 2:43 PM

Mike Castellano
May 24, 2021 2:43 PM

Sandy to clay soils have different hydrological properties such as wilting point, field capacity, and saturation level (Fig 1a). Wilting point means no water is available to plants, field capacity means near optimum moisture for plant growth, and saturation means the soil pores are full of water...

Crop Production

Sotirios Archontoulis
May 24, 2021 1:55 PM

Mark Licht
May 24, 2021 1:55 PM

Mike Castellano
May 24, 2021 1:55 PM

The Forecast and Assessment of Cropping sysTemS (FACTS) webpage is evolving. When it was launched in 2015, FACTS provided forecasts soil moisture, nitrogen, phenology, and crop yields at two Iowa locations. In 2016, it was expanded to six Iowa...

Crop Production

Ashley Dean
May 20, 2021 1:49 PM

Erin Hodgson
May 20, 2021 1:49 PM

Western and northern corn rootworms are serious corn pests in Iowa and the Corn Belt, primarily due to their feeding habits but also because they can overcome nearly all management tactics available to farmers. The larvae tunnel into and consume corn roots, thereby reducing nutrient and water...

Crop Production, Insects and Mites

Ashley Dean
May 20, 2021 11:59 AM

Reported captures for both species in the trapping network were down from previous weeks. During Week 7 of the Iowa Moth Trapping Network, our cooperators reported 60 total black cutworm (BCW) and 22 true armyworm (TAW) moths.

Week 7 report:

The TAW moths...

Crop Production, Insects and Mites

Rebecca Vittetoe
May 18, 2021 3:05 PM

Planting is starting to wrap up around the state for both corn and soybeans, and according to the May 17 NASS-USDA Crop Progress Report, 94% of the corn...

Crop Production

Levi Powell
May 17, 2021 3:26 PM

Ryan W Bergman
May 17, 2021 3:26 PM

As planting wraps up and crops begin to emerge across the state, data collected during planting can help you diagnose many issues in your field and determine if they were related to machine performance or agronomic factors. In this video, Program Specialist Levi Powell shows how to use spatially...

Equipment and Machinery

Aaron Saeugling
May 12, 2021 2:33 PM

The 2021 cropping year will be remembered for a long time as an unusual year in many respects. Corn and soybean growth are off like a turtle race in many locations this season. So, we may be driving around, doing some road scouting, and asking ourselves why this is taking so long. After all, the...

Crop Production

Ashley Dean
May 12, 2021 2:03 PM

Black cutworm remains the dominant moth species captured by cooperators in our trapping network. During Week 6 of the Iowa Moth Trapping Network, our cooperators reported 73 total black cutworm (BCW) and 34 true armyworm (TAW) moths.

Week 6 report:

The TAW moths...

Crop Production, Insects and Mites

Rebecca Vittetoe
May 11, 2021 10:34 PM

This past week brought some much needed and welcomed rain across the state. Planting is getting on the downhill slide with corn planting about 86% complete and soybean planting about 67% complete across the state according to the...

Crop Production

Angie Rieck-Hinz
May 11, 2021 7:46 PM

The May 10 USDA-NASS Iowa Crop Progress Report showed 86% of the Iowa corn crop is planted and 22% is emerged; soybeans are 67% planted and 6% emerged....

Crop Production

Erin Hodgson
May 11, 2021 1:03 PM

Meaghan Anderson
May 11, 2021 1:03 PM

Ashley Dean
May 11, 2021 1:03 PM

I am always surprised to find insect abundance and diversity when scouting in alfalfa. It never disappoints. At any point in the growing season, one is likely to find 20+ species of potential pests feeding on foliage. However, finding a lot of different insects at one time doesn’t necessarily...

Insects and Mites

Mark Licht
May 10, 2021 2:06 PM

Zachary Clemens
May 10, 2021 2:06 PM

Planting conditions in April were pretty good for planting. In fact, there were many reports of planting in early April. Unfortunately, April was much cooler and dryer than normal. Early planted corn and soybean took longer to germinate and emerge because of these cooler conditions. Additionally...

Crop Production

Ashley Dean
May 6, 2021 1:43 PM

The weather warmed up a bit during Week 5 (April 25 to May 1), and the moths were flying more than previous weeks. During Week 5 of the Iowa Moth Trapping Network, our cooperators reported 97 total black cutworm (BCW) and 33 true armyworm (TAW) moths.

Week 5 report:...

Crop Production, Insects and Mites

Rebecca Vittetoe
May 4, 2021 3:07 PM

A lot of planting progress was made for both corn and soybeans over the last week. According to the May 3 USDA-NASS Crop Progress Report, approximately...

Crop Production

Ashley Dean
April 29, 2021 3:10 PM

Cooler conditions continued into week 4, resulting in relatively few moths being caught across the state. During week 4 of the Iowa Moth Trapping Network (April 18 to April 24), our cooperators reported 56 total black cutworm (BCW) and 15 true armyworm (TAW) moths.

You may be wondering...

Crop Production, Insects and Mites

Zachary Clemens
April 29, 2021 1:58 PM

Soybean research and Extension specialists from land-grant universities across the country welcome you to join a monthly informal discussion on production topics that have timely relevance. By joining the Notes from the Field webinar series, you will get highlights and current issues from across...

Crop Production

Erin Hodgson
April 28, 2021 2:38 PM

Ashley Dean
April 28, 2021 2:38 PM

Just last week, Ashley Dean predicted overwintering mortality of bean leaf beetle in Iowa. It looked pretty grim for this soybean pest, with over 77% mortality predicted for central...

Crop Production, Insects and Mites

Meaghan Anderson
April 28, 2021 10:06 AM

Like in prior springs, we often see a trend in the weed identification questions in certain parts of the state. This spring, a small mustard species with finely-divided (I like to say frilly or lacy) leaves is the most frequent plant requiring identification by our clients. There are several...

Weeds

Rebecca Vittetoe
April 27, 2021 9:38 AM

It’s been an unusual spring with the cooler and drier conditions. While many would welcome a rain, the warmer conditions mean planting has gotten underway. Iowa State University Extension and Outreach field agronomists share reports on what they are seeing and hearing in their respected regions...

Crop Production

Meaghan Anderson
April 27, 2021 8:29 AM

Mark Licht
April 27, 2021 8:29 AM

While the warm weather has finally arrived for planting season, dry soil is becoming an increasing concern in parts of the state. In addition to concerns about subsoil moisture, some fields have had significant surface drying, particularly in areas with more tillage this spring. Dry soil...

Crop Production

Ashley Dean
April 26, 2021 12:02 PM

During week 3 of the Iowa Moth Trapping Network (April 11 to April 17), our cooperators reported 62 total black cutworm (BCW) and 9 true armyworm (TAW) moths. Cooler conditions recently may have slowed down moth migration into the state, but black cutworm remains the dominant species caught in...

Crop Production, Insects and Mites

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