Blog

Alison Robertson
June 5, 2019 4:25 PM

#plant19 has been a year to remember, and not necessarily in a good way. A couple of days ago we talked about anthracnose leaf blight on corn. Although we...

Plant Diseases

Bob Hartzler
June 5, 2019 8:42 AM

John Sawyer
June 5, 2019 8:42 AM

Corn planting has been start and stop, and generally delayed this spring. In some situations the decision was made to plant and not apply nitrogen, or planting progressed so quickly that UAN (urea-ammonium nitrate solution) and herbicide applications couldn’t keep up with the planters, and now...

Weeds

Ethan Stoetzer
June 5, 2019 8:10 AM

Alison Robertson
June 5, 2019 8:10 AM

With some planting progress still stalled, many of you are probably finding ways to pass the time, possibly scrolling through Twitter. Adding to some of the anxiety, you’re probably seeing photos of diseased seedling corn, by the name of Anthracnose leaf blight. While last week’s...

Plant Diseases

Rebecca Vittetoe
June 4, 2019 10:10 AM

Mother Nature has not been a friend to farmers this spring, making the 2019 planting season a challenging one to say the least. According to the June 3, 2019...

Crop Production

Josh Bendorf
May 28, 2019 12:11 PM

Danielle M Clark (Wilson)
May 28, 2019 12:11 PM

Summer trip?! Undergraduate students commonly take trips during the summer that consists of hiking in the mountains, relaxing on the beaches, or experiencing a new culture in a foreign country. However, one group of students from Furman University in Greenville, SC broke the mold and chose...

Crop Production

Fernando Miguez
May 28, 2019 8:52 AM

Annabelle Laurent
May 28, 2019 8:52 AM

Peter Kyveryga
May 28, 2019 8:52 AM

“I don’t have 50 years of experience. I have one year of experience 50 times” – farmer

Crop Production

Erin Hodgson
May 23, 2019 3:14 PM

Everyone is talking about the cool, wet spring this year. It's definitely slowed down my research projects, too. Thanks to the help of the Tylka Lab, we have about half our soybean plots in the ground. I am working on soybean aphid efficacy evaluations at the NWRF near Sutherland. I am starting...

Crop Production, Insects and Mites

Rebecca Vittetoe
May 20, 2019 10:15 PM

Farmers across the state took advantage of the little dry spell that occurred last week. Approximately 70% of the expected corn crop and 27% of the soybean crop in Iowa has been planted according to the May 20...

Crop Production

Bob Hartzler
May 20, 2019 10:00 AM

Meaghan Anderson
May 20, 2019 10:00 AM

We have always told extension clients and students that the best tool for identifying an unknown weed is a good book, other than finding somebody who already knows what the weed is.  We never thought much of the early weed ID apps that were developed for mobile devices.  In AGRON 217 (Weed...

Weeds

Rebecca Vittetoe
May 14, 2019 2:52 PM

“Rain, rain, go away come again another day.” This nursery rhyme seems to be an appropriate theme song for how the weather has been this spring. The wet weather has been a major challenge for getting any fieldwork completed across the state. According to the most recent...

Crop Production

Ashley Dean
May 13, 2019 4:21 PM

Adam Sisson
May 13, 2019 4:21 PM

Erin Hodgson
May 13, 2019 4:21 PM

This week we begin Week 7 of moth trapping in Iowa. Significant captures of black cutworm (BCW) have occurred in several counties during weeks 3-6 of trapping (bold and * in Table 1). Significant captures occur when 8 or more BCW moths are caught in a wing-style pheromone trap over 2 nights....

Crop Production, Insects and Mites

Meaghan Anderson
May 10, 2019 9:07 AM

As everything greens up, we often receive photos of mystery plants for identification.  Typically, I get a wide range of species via email or text message.  This spring, more than any I can recall in recent history, I’ve received many photos of the same species:  purslane speedwell (Veronica...

Weeds

Elizabeth Buffington
May 9, 2019 7:24 AM

According to a recent State Federal Insecticide Fungicide and Rodenticide Act Issues Research and Evaluation Group (...

Pesticide Education

Perla Carmenate
May 3, 2019 8:50 AM

Danielle M Clark (Wilson)
May 3, 2019 8:50 AM

Emily Heaton
May 3, 2019 8:50 AM

Have you been driving in rural eastern Iowa lately? You might have noticed those choppers and wagons a few weeks ago harvesting miscanthus fields, but what have you seen most recently? Planters! You might have noticed that they don’t look like the grain planters most of us are used to seeing....

Crop Production

Dennis Todey
May 1, 2019 4:38 PM

Justin Glisan
May 1, 2019 4:38 PM

Rebecca Vittetoe
May 1, 2019 4:38 PM

Meaghan Anderson
May 1, 2019 4:38 PM

Mark Licht
May 1, 2019 4:38 PM

The calendar may now say we are in the month of May, but it certainly doesn’t feel that way with the weather and with planting progress across Iowa.

Soil temp. Ideally we want soil temps at the 4” depth to be 50oF or warmer prior to planting corn. While we did...

Crop Production

Erin Hodgson
May 1, 2019 11:41 AM

This summer, I am starting a couple of new research projects looking at cover crop pest activity that might be relevant to corn production. Shout out to Alison Robertson and Mark Licht for including me on these massive research projects! The usual cover crop pest suspects are migratory moths,...

Crop Production, Insects and Mites

Mark Licht
April 29, 2019 3:54 PM

Last week planters made progress across portions of Iowa. Rains this weekend and the forecast for the coming week indicate planting will be at a standstill this week. In light of the weekend weather, soil temperatures quickly fell below 50oF. What does this mean for corn and soybean...

Crop Production

Rebecca Vittetoe
April 29, 2019 3:43 PM

Like #Plant18, #Plant19 seems to be off to a slow start. Approximately 21% of the expected corn crop and 3% of the soybean crop in Iowa has been planted according to the...

Crop Production

Ethan Stoetzer
April 29, 2019 1:04 PM

Daren Mueller
April 29, 2019 1:04 PM

Alison Robertson
April 29, 2019 1:04 PM

Now that we’re within the time frames for planting to achieve optimal yields for corn and soybean, producers might be getting antsy with the cold, damp weather, and weighing the risks of a potential cold front that can cause damage to germinating seeds or seedlings.

For those that have...

Crop Production, Plant Diseases

Mark Licht
April 23, 2019 2:27 PM

Sotirios Archontoulis
April 23, 2019 2:27 PM

Mitchell Baum
April 23, 2019 2:27 PM

Corn planting progress began over the last several days, especially in the central and southern tiers of Iowa. That is good news, unfortunately, in north central and northwest Iowa field conditions remain wet putting farmers in those areas further behind and with Monday’s rain will not be making...

Crop Production

Collin De Graaf
April 22, 2019 2:07 PM

Danielle M Clark (Wilson)
April 22, 2019 2:07 PM

Emily Heaton
April 22, 2019 2:07 PM

If you have been driving in rural eastern Iowa and noticed a lot of choppers and wagons, you might have been seeing the UI Biomass Fuel Project Miscanthus harvest.

Crop Production

Ashley Dean
April 19, 2019 5:00 PM

Erin Hodgson
April 19, 2019 5:00 PM

Adam Sisson
April 19, 2019 5:00 PM

Each year, Iowa State University’s IPM team monitors field crop pests to help inform farmers and scouting personnel about pest activity in Iowa. This year, our moth trapping network includes black cutworm (BCW) and true armyworm (TAW), two migratory pests of crops in Iowa that are unpredictable...

Crop Production, Insects and Mites

Valeria Cano Camacho
April 16, 2019 11:30 AM

Danielle M Clark (Wilson)
April 16, 2019 11:30 AM

Emily Heaton
April 16, 2019 11:30 AM

Today, we will take a quick trip around the world to explore how other cultures have used miscanthus. East Asian cultures incorporated miscanthus into their everyday lives: paintings, toys, household items, rituals, and in some cases medicinal uses.

Crop Production

Elizabeth Buffington
April 15, 2019 7:59 AM

Under the Worker Protection Standard (WPS) as revised in 2015, there are specific requirements for handlers when pesticide labels require the use of a respirator. Handlers are employees, owners, and family members who apply, load, unload, rinse pesticide application equipment or do other tasks...

Pesticide Education

Ethan Stoetzer
April 12, 2019 9:21 AM

The Crop Protection Network (CPN) has published its 2019 fungicide efficacy tables for corn and soybean foliar diseases and soybean seedling diseases. These three publications can be found at the CPN website, under resources...

Plant Diseases

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