Blog

Adam Sisson
February 21, 2018 2:25 PM

The new crop season is right around the corner, and we want you to be prepared for yield-reducing disease, insect and weed issues! ISU Extension publications are great field scouting resources and provide a wealth of information for identifying production issues in your fields.

Four ISU...

Insects and Mites, Plant Diseases, Weeds

Micheal D.K. Owen
February 16, 2018 11:50 AM

Dr. Fred Gould, University Distinguished Professor and Reynolds Professor of Entomology at North Carolina State University will present the 29th Staniforth Memorial Lecture on April 3rd at 4PM in the Curtiss Hall Auditorium on the Iowa State University Campus.  Dr. Gould...

Weeds

Daren Mueller
February 14, 2018 2:32 PM

Adam Sisson
February 14, 2018 2:32 PM

Iowa State University Extension and Outreach published the Field Crop Scouting book as an online learning tool for crop scouts and other ag professionals in Iowa. This interactive textbook allows individuals to acquire knowledge about multiple crop...

Crop Production, Insects and Mites, Plant Diseases, Weeds

Meaghan Anderson
February 13, 2018 9:10 AM

Greg Brenneman
February 13, 2018 9:10 AM

Virgil Schmitt
February 13, 2018 9:10 AM

Rebecca Vittetoe
February 13, 2018 9:10 AM

Farmers and agriculture suppliers will want to attend the Southeast Iowa Agricultural Research Association annual meeting at the Johnson County Extension office in Iowa City on Thursday, March 1, 2018 beginning at 10:00 a.m., according to association president Jeff Ellis.

Following a...

Crop Production

Adam Sisson
February 5, 2018 1:34 PM

Daren Mueller
February 5, 2018 1:34 PM

Iowa State University Extension and Outreach has published an updated version of the Soybean Diseases publication to help farmers and other professionals in the agriculture industry identify and scout for disease threats to soybean production in Iowa. The publication includes scouting tips,...

Plant Diseases

John Sawyer
January 26, 2018 11:46 AM

Antonio Mallarino
January 26, 2018 11:46 AM

If you are interested in an in-depth course covering soil fertility and nutrient management, then consider attending the Iowa State University Extension and Outreach 2018 Soil Fertility and Nutrient Management Short Course. This is a two-day event that provides an opportunity to dig deeper into...

Soil Fertility

Daren Mueller
January 25, 2018 10:40 AM

Farmers and agribusiness have a new tool to help them tackle crop management challenges. The Crop Protection Network, a multi-state and international collaboration of university and provincial extension specialists, has redesigned its website...

Crop Production

Sotirios Archontoulis
January 5, 2018 9:50 AM

Mark Licht
January 5, 2018 9:50 AM

Mike Castellano
January 5, 2018 9:50 AM

Most of Iowa was wet and cool during planting time (end April to mid-May), warm and dry during vegetative growth (June to July), and cool and wet during reproductive development (August to September). In some locations, the June-July drought was severe with precipitation deficits exceeding eight...

Crop Production

Bob Hartzler
December 27, 2017 3:37 PM

Dicamba has been an important component of Iowa weed management systems for more than 40 years.  The history of its use is somewhat unique in that its popularity has ebbed and flowed over time.  The increase in herbicide resistant weeds combined with the introduction of dicamba-resistant soybean...

Weeds

Bob Hartzler
December 19, 2017 8:30 AM

At the recent North Central Weed Science Society annual meeting I was asked to provide the opening presentation (A historical perspective on dicamba) in a symposium focusing on issues with dicamba.  Following are the slides and the abstract of my presentation.

...

Weeds

John Sawyer
December 18, 2017 8:06 AM

Antonio Mallarino
December 18, 2017 8:06 AM

The Iowa State University Extension and Outreach Soil Fertility web site has undergone a recent redesign and update. The site was updated, but the URL has remained the same (http...

Soil Fertility

Chelsea Harbach
November 29, 2017 1:43 PM

The number of acres planted to cover crops annually has been steadily increasing in recent years throughout the United States. Meanwhile, the soybean cyst nematode (SCN) continues to sit atop of the U.S. list of yield-suppressing pathogens. It’s no coincidence, then, that there is an increasing...

Plant Diseases

Mark Westgate
November 6, 2017 9:03 AM

Rebecca Vittetoe
November 6, 2017 9:03 AM

There have been many reports of corn along the edge of the fields yielding drastically less than the remainder of the field. In many cases, the yield loss is most obvious on the southern edge of the field, but it has been observed along the west, east, and north sides of fields this year. This...

Crop Production

Greg Brenneman
October 26, 2017 3:40 PM

Charles R Hurburgh
October 26, 2017 3:40 PM

Up to this point in the harvest season we have been short on grain dry down and cooling weather. Corn moisture percentages have been hanging in the 20’s, sometimes in the upper 20’s. This past week eliminated much of the moisture, but favorable field dry down weather rarely continues into...

Grain Handling and Storage

Greg Tylka
October 23, 2017 4:07 PM

I’ve received lots of inquiries in the past few weeks about sampling fields for nematodes that feed on corn. Most every Iowa field has one or more different nematode species present at low numbers. But it’s only when numbers are at damaging levels that yield loss will occur.

Unfortunately...

Plant Diseases

Angie Rieck-Hinz
October 20, 2017 10:07 AM

I grew up watching the television show Quincy, M.E.  Jack Klugman starred as a Los Angeles County medical examiner in the mystery-thriller, one-hour show as Quincy who had to solve mysterious deaths.  I would argue this show set the tone for future shows such as "CSI: Crime Scene...

Crop Production

Rebecca Vittetoe
October 16, 2017 3:59 PM

Fall is usually not a time I expect to get questions about armyworms, but last week I received several questions about fall armyworms in cover crops, particularly in cereal rye, triticale, or wheat cover crops. In Iowa, fall armyworms can be pests in corn, hayfields and pastures, but this is the...

Insects and Mites

Adam Sisson
October 13, 2017 9:53 AM

Cover of newly revised Soybean Diseases from Iowa State University Extension and Outreach

A new version of the Iowa State University...

Plant Diseases

Alison Robertson
October 6, 2017 8:44 AM

Rebecca Vittetoe
October 6, 2017 8:44 AM

Over the past couple of weeks we’ve been doing stalk rot assessments at several of the ISU Research Farms including the Southeast Research and Demonstration Farm, the McNay Research Farm, and the Ames Farm. While the plants seemed to be standing well, minus where the raccoons had fun in one of...

Plant Diseases

John Sawyer
October 4, 2017 11:48 AM

If you would like to learn more about current soil fertility issues and research being conducted at universities across the North Central region, then consider attending the 47th Annual North Central Extension-Industry Soil Fertility Conference to be held November 15-16, 2017, from 1:00 p.m. to...

Soil Fertility

Erin Hodgson
September 29, 2017 9:49 AM

This week, my technician Greg VanNostrand found a black widow in our storage Quonset at the ISU Johnson Research Farm. The farm is just south of Ames in Story County. She is an adult female and had a pile of dead body fragments below her web. Needless to say, she was healthy and happy in the...

Insects and Mites

Kelsey Fisher
September 25, 2017 7:58 AM

Erin Hodgson
September 25, 2017 7:58 AM

Often people have fond memories of monarch butterflies and look forward to their arrival each summer. But there is some confusion about their migration pattern and population decline. “How can such a tiny butterfly travel such a great distance?” and “What do you mean the population is declining...

Insects and Mites

Alison Robertson
September 18, 2017 2:30 PM

Jody Korthaus
September 18, 2017 2:30 PM

To help farmers and agronomists identify, scout, and manage corn diseases a new Corn Diseases booklet, published by Iowa State University Extension and Outreach, is now available to crop producers and industry professionals. The up-...

Plant Diseases

Bob Hartzler
September 18, 2017 11:59 AM

My colleagues at Purdue recently compiled weather data to determine how many hours would be available to apply the new dicamba products (e.g. Xtendimax with VaporGrip Technology, FeXapan with VaporGrip Technology, and Engenia...

Weeds

Mark Hanna
September 14, 2017 12:31 PM

Clarke McGrath
September 14, 2017 12:31 PM

It’s always difficult to forecast weather, but if dry field conditions persist, potential for combine and field fires this fall could be a problem. All it takes is a single high-temperature source in the engine area, or an overheated bearing to ignite dry plant material.

During harvest...

Crop Production

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