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Erin Hodgson
March 30, 2018 10:31 AM
Insecticide-resistant soybean aphids have emerged as a new challenge to farmers throughout the upper Midwest. In a new regional publication, we suggest strategies for managing soybean aphids resistant to pyrethroid insecticides. A few key points for managing aphids are:
John Sawyer
March 26, 2018 11:13 AM
The regional Corn Nitrogen Rate Calculator (CNRC; http://cnrc.agron.iastate.edu/) website was recently updated with a revised Iowa N response trial database. The changes to the suggested N rates in Iowa are...
Virgil Schmitt
March 12, 2018 1:13 PM
Pest resistance is a world-wide challenge from hospitals to farm fields. I recently spent several days in the hospital battling an internal bacterial infection, which required intravenous antibiotics. I noted that the medical staff:
Bob Hartzler
March 4, 2018 10:40 AM
The Center for Biological Diversity (CBD) recently released a report (A menace to monarchs) describing the threat to monarch butterflies posed by an increased use of dicamba. ...
Kristine Schaefer
March 1, 2018 2:58 PM
Elizabeth Buffington
March 1, 2018 2:58 PM
A collection of educational resources to help people on farms, orchards, forests, and other agricultural establishments comply with EPA’s revised Worker Protection Standard (WPS) regulation is now available online at http://pesticideresources.org/wps...
Erin Hodgson
February 27, 2018 2:12 PM
Adam Sisson
February 27, 2018 2:12 PM
The IPM team at Iowa State University has been monitoring for field crop pests for a long time. The target pests have changed over the years, but the goal always remains the same: help inform farmers about pest activity in Iowa. One long-standing...
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...
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...
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...
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...
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,...
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...
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...
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...
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...
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.
...
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...
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...
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...
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...
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...
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...
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...
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...