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Dr. Erin Hodgson started working in the Department of Entomology, now the Department of Plant Pathology, Entomology, and Microbiology, at Iowa State University in 2009. She is a professor with extension and research responsibilities in corn and soybeans. She has a general background in integrated pest management (IPM) for field crops. Dr. Hodgson's current extension and research programs are focused on improving corn and soybean production by using IPM tactics to protect yield and increase overall farmer profits. Among other projects, she oversees insecticide efficacy evaluations for soybean aphids, Japanese beetles, and aphids in corn. Erin also helps manage emerging field crop pests and invasive species.
Daren Mueller is a professor and extension plant pathologist at Iowa State University. He is also the coordinator of the Iowa State Integrated Pest Management (IPM) program. Daren received his bachelor's degree from the University of Wisconsin-Madison in 1996, and his master's degree and doctorate in Plant Pathology from the University of Illinois-Urbana in 1999 and 2001. Daren’s main research interests involve understanding the biology and management of field crop diseases. Daren is also a co-director of the North Central IPM Center and the Crop Protection Network.
Dr. Alison Robertson is a professor of plant pathology and microbiology. She provides extension education on the diagnosis and management of corn and soybean diseases. Her research interests include Pythium seedling disease of corn and soybean and Goss's wilt. Dr. Robertson received her bachelor's degree in plant pathology in 1991 from the University of Kwazulu-Natal, Pietermaritzburg, and came to the United States in 1999 to pursue a doctoral degree in plant pathology at Clemson University. She started working at Iowa State University in May 2004.
Adam Sisson is an extension specialist with the Iowa State University Integrated Pest Management (IPM) program and a Certified Crop Adviser. Sisson focuses on the development of publications and other educational resources for farmers, agribusiness, and students. He received his bachelor's degree in agronomy and environmental studies in 2006 and a master's degree in sustainable agriculture in 2009; both from Iowa State University.
Dr. Mark Licht is an associate professor and extension cropping systems specialist with Iowa State University Extension and Outreach. His extension, research and teaching program is focused on how to holistically manage Iowa cropping systems to achieve productivity, profitability and environmental goals. Research is centered around varied aspects of soybean, corn and cover crop management as well as agronomic implications of precision technologies.
Meaghan Anderson is a field agronomist in central Iowa and an extension specialist at Iowa State University Extension and Outreach. Educational programming is available for farmers, agribusinesses, pesticide applicators, certified crop advisors, and other individuals interested in crop production.
Areas of expertise include weed management, weed biology, cover crops, corn and soybean management, and integrated pest management.
Subscribe to the Central Iowa Crop Update for current topics and agriculture events in the area.
Dr. Sotirios Archontoulis is an assistant professor of integrated cropping systems at the Department of Agronomy. His main research interests involve understanding complex Genotype by Management by Environment interactions and modeling various components of the soil-plant-atmosphere continuum. Dr. Archontoulis's overall goal is to investigate practices that can increase the efficiency of system by means of increasing crop yields and simultaneously decreasing inputs or losses such as water and nitrogen. His approach combines field experimentation and use of mechanistic simulations models.
Dr. Kathleen Delate's current position as a professor and extension organic specialist at Iowa State University is a joint position between the departments of horticulture and agronomy, where she's responsible for research, extension, and teaching in organic agriculture. Organic agriculture is now a $35 billion industry in the United States, with 18,000 organic farmers. Her research focuses on pest management and soil fertility management strategies for transitioning and certified organic farmers.
Dr. Delate grew up on the East coast where her father was a statistician for Dupont and her mother hailed from a family farm in Magnolia, Minnesota. She spent many summers working on her cousin’s diversified farm in Minnesota, helping bale hay and feed hogs, which is where she developed a love for agriculture. Dr. Delate earned her bachelor's degree in agronomy, a master's degree in horticulture from the University of Florida, and a doctoral degree in agricultural ecology from the University of California-Berkeley. She has farmed organically in Iowa, California, Florida, and Hawaii. In 2014, she spent a sabbatical in Italy, studying organic no-till farming with some of the 48,000 organic farmers there. A video on the organic no-till system is available at: https://vimeo.com/user20353817/review/99643832/0a09248894
Results of the organic research are located on the Iowa State University Organic Agriculture webpage: https://www.leopold.iastate.edu/organic
Subscribe to RSS FeedMy 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...
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...
As the 2017 growing season winds down, ISU Extension and Outreach field agronomists share how the crops are progressing and finishing out the season in their repressive regions across the state.
Northwest Iowa
...In mid-August of this summer, I wasn’t hearing anything about aphids feeding on corn and I thought we weren’t going to see it this year. These aphids are highly erratic and so where and when they land are not well understood. But the last week of August, I started to hear from folks in northern...
For the past four years (maybe five) I’ve visited the first three known infestations of Palmer amaranth in western Iowa to track the status of the populations in these fields. Following is a brief summary of my visits to Harrison, Fremont and Page Counties on September 3.
I’m getting a lot of questions regarding treatment timing for soybean aphid. Mainly, when is it too late to treat? In the last week of August 2017, most fields are reaching R5/R6 and so the question is an important one. In my soybean aphid efficacy evaluation, I have sprayed at different plant...
The economic threshold of 250 soybean aphids per plant, with more than 80% of plants infested and aphid populations increasing was published in 2007 to prevent populations from reaching the EIL. These values were determined by closely monitoring aphid populations in research...
Iowa State University Extension and Outreach field agronomists report crop conditions in NW, NE, and SE Iowa.
Northwest Iowa
The following article originally appeared on the ISU Weed Science Online website. Current research is showing that the new formulations of dicamba (Xtendimax with Vapor Grip Technology and Engenia) have not solved the volatility problem associated with dicamba. Since the fundamentals of...
#Drought17, late season hail damage, weed escapes, and soybean aphids seem to be the big issues ISU Extension field agronomists are seeing in fields across the state this past week. Read on for more information about your region's crop progress and field conditions.
Northwest...
For the first time in recent history, a contestant successfully defended their title in the Professional Division at the State Fair Weed ID Contest. Cindy Recker of Peosta repeated as champion of the Professional Division, Karen Stiles of Des Moines won the General Division, and Henric Krause...
Six teams of Iowa youth from across the state participated in the seventh annual Iowa Crop Scouting Competition on July 31 at the ISU Extension and Outreach...
Seeding Cover Crops in Dry Conditions
We are quickly approaching the time of year when we aerially seed cover crops into standing corn and soybeans. Earlier seeding allows for more growth and consequently more biomass to protect soils from erosion. It also allows the opportunity to...
The dry and droughty conditions, spider mites, soybean aphids, and dicamba drift are common issues ISU Extension field agronomists are seeing across the state. Read on for more information about your region's crop progress and field conditions.
Northwest Iowa
According to the U.S. Drought Monitor, most of Iowa is still considered abnormally dry. Twospotted spider mites are erratic pests in some corn and soybean fields right now, particularly in southern Iowa. I’ve been...
Rainfall continues to be scattered across the state. According to the U.S. Drought Monitor, 64% of the state is abnormally dry, 34.7% is in a moderate drought, and 1.6% is in a severe drought. ISU Extension...
Observations across several counties in southeast and south central Iowa show that, despite some recent rain events and high humidity, twospotted spider mites are persisting in both corn and soybean fields across the area. These insect-like pests can be very difficult to identify, so we’ve got...
We’ve got the terrible too’s in weather extremes across Iowa. Parts of northeast Iowa received too much rain and experienced flash flooding while many other parts of Iowa are in desperate need of rain and have seen too little rain. Iowa University Extension and Outreach...
As of February 2017, Palmer amaranth (Amaranthus palmeri) had been found in 49 of Iowa’s 99 counties. A native of the American southwest, Palmer amaranth is more competitive than common waterhemp (Amaranthus tuberculatus), a pigweed native to Iowa. These two species are two...
Water and temperature affect many crop processes simultaneously ranging from crop growth, development, photosynthesis, respiration, water transpiration, grain fill, and nutrient cycling. The magnitude of high temperature or drought stress depends also on the stage of the crop. Another factor...
The spotty rain and dry weather saga continues in many parts of the state. The U.S. Drought Monitor has just over 47% of the state as abnormally dry and 16% of the state in a moderate drought.
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The 2017 State Fair Weed Identification Contest will be held on Friday, August 11, from 9:00 AM to 11:30 AM. Contestants can show up anytime during this period and complete the task at their own pace.
The contest is held outside of the John Deere Agriculture Building, but moves indoors...
1) Develops in hot, dry weather conditions. Charcoal rot is a fungal disease that is most severe in years and areas experiencing hot, dry weather. However, this disease can also cause losses when ample moisture is present, making it a hidden threat to yield.
2)...
The Twitter accounts @corndisease and @soydisease are a place for farmers agronomists, crop consultants, and specialists to collectively document and track...
While off-target movement of pesticides is not a new problem, the growth regulator herbicides create a unique situation due to their ability to induce easily observed symptoms at very low doses. Large scale drift problems were experienced when the phenoxy herbicides were introduced in the 1950s...