Ethan Stoetzer

March 24, 2020 10:47 AM

With the recent alterations we've all had to make in our lives in the wake of the Coronavirus pandemic, many of your offseason field days, meetings and/or conventions have either been canceled or suspended indefinitely. This could have put a damper on your plans to receive crop management...

Crop Production, Insects and Mites, Pesticide Education, Plant Diseases, Weeds, Herbicide Resistance
March 19, 2020 8:37 AM

The Crop Protection Network (CPN) has published its 2020 fungicide efficacy tables for foliar diseases of corn and soybean, and for seedling diseases of soybean. These three publications can be found at the CPN website, under...

Crop Production
March 17, 2020 2:05 PM

Due to COVID-19 and the need for social distancing, the Iowa State University Plant and Insect Diagnostic Clinic (PIDC) has made the decision to implement as much distance diagnostics as possible in order to greatly reduce the numbers of physical samples. 


We have made this...

Crop Production, Insects and Mites, Plant Diseases, Soils
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
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
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
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
October 15, 2019 10:36 AM

Iowa State University Extension Plant Pathologist Daren Mueller will be featured on a North Central Climate Collaborative (NC3) webinar later this month. The focal point of the discussion will be around how climate change is impacting disease expression in both corn and soybean in the North...

Plant Diseases
September 4, 2019 10:35 AM

One plant disease to keep a lookout for when harvesting grains and grasses for animal and human consumption is ergot. The ergot pathogen generates toxic alkaloids that potentially could create problems with livestock feeding, and when trying to market a small grain crop. The Crop Protection...

Crop Production, Grain Handling and Storage, Plant Diseases
July 17, 2019 2:15 PM

A new article recently released through the Crop Protection Network (CPN) discusses how to make fungicide decisions in corn and soybean, given the delayed planting scenarios across...

Plant Diseases
June 19, 2019 4:04 PM

For those of you that are in need of some extra Certified Crop Advisor (CCA) Continuing Education Units (CEUs), you can earn up to 9.5 total CEUs simply by visiting the Crop Protection Network (CPN), and testing your knowledge of various pest management topics, such as plant diseases and...

Crop Production, Pesticide Education, Plant Diseases
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
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
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
April 12, 2019 9:03 AM

University of Missouri's Kevin Bradley and Mandy Bish recently shared a tailored list on several principles that have been researched and verified regarding dicamba usage ahead of #Plant2019. 

Bradley and Bish's list includes five principles to remember when communicating with producers...

April 5, 2019 10:03 AM

Hungry pests begin to emerge with warm spring weather and spread to favorite foraging spots such as trees, shrubs, gardens and even crop fields. To raise awareness of damaging pests, the United States Secretary of Agriculture Sonny Perdue issued a proclamation making April 2019 “...

Insects and Mites
April 3, 2019 11:20 AM

University of Illinois Extension Plant Pathologist Nathan Kleczewski recently conducted an interview through the Illinois Extension news service regarding pre-season management and preparation for tar spot in 2019.

While Iowa isn't as heavily impact as some counties in Illinois, the...

Plant Diseases
March 4, 2019 8:39 AM

Recent research at Kansas State University has confirmed farmers' claims of reduced herbicide efficacy in controlling Palmer amaranth in fields. According to the research, Palmer amaranth samples, collected from a long-term conservation tillage study, were identified as being resistant to 2,4-D...

Herbicide Resistance
February 28, 2019 2:55 PM

These species, whether it be insects, weeds or pathogens have the power to drastically alter a landscape by feeding on, or out-competing, plants or other native species. Populations of invasive species are often large enough to kill large numbers of trees and plants, reduce soil quality and...

Insects and Mites, Plant Diseases, Weeds
February 11, 2019 3:57 PM

The Crop Protection Network (CPN), a collective of multiple land grant universities across the region, published two new resources for Iowa farmers detailing tar spot in corn, caused by phyllachora maydis, and soybean seed quality for 2019.

Grain Handling and Storage, Plant Diseases
January 7, 2019 11:18 AM

As 2018 was winding down, your extension specialists were gearing up, publishing eight pest-management related guides for the 2019 growing season. Several of these guides are downloadable, for free, on the Iowa State University Extension Store. Now's the perfect time to gather materials to...

Crop Production, Insects and Mites, Pesticide Education, Plant Diseases, Weeds, Herbicide Resistance
December 12, 2018 1:20 PM

Winter has nearly arrived. The fields are harvested. Equipment has been tucked in, and the evaluation of the season is well underway. While the new year brings the promise of a great crop season in 2019, it’s important to remember that while we recharge for the winter, so do field crop pests....

Crop Production, Insects and Mites, Pesticide Education, Plant Diseases, Weeds, Herbicide Resistance
October 26, 2018 2:04 PM

The follow-up to this summer's 'Sporecaster' smartphone application, designed to help farmers predict the need for a fungicide application to control white mold in soybean, is now available for download.

While Sporecaster can help farmers evaluate their risk for white mold using infection...

Plant Diseases
October 17, 2018 11:43 AM

The college classroom teaches you a multitude of things that you probably need to know in order to make sense of the world around you. But an internship that gives you experience in that world can mean the difference of succeeding in life or just getting by. As an agricultural communications...

Crop Production
October 15, 2018 11:01 AM

With the 2018 growing season coming to an end, it’s time to bust out the record books and begin logging the most prevalent diseases we’ve seen this year in Iowa soybeans. It’s important to review  these diseases so that farmers, agronomists and all of our partners can make informed decisions...

Plant Diseases