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Angie Peltier


Angie Peltier
Former Extension Educator, Commercial Agriculture



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Hill and Furrow

Current topics about crop production in Western Illinois, including field crops research at the NWIARDC in Monmouth.
Insects
Figure. Japanese beetles feeding on corn silks at the Northwestern Illinois Ag R&D Center in Monmouth.
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They're baaaack! Scouting tips and thresholds for Japanese beetles.

Posted by Angie Peltier - Insects

When applying post emergence herbicides in several of the Northwestern Research Center's soybean fields over the last week or so, research specialist Marty Johnson noticed large clusters of Japanese beetles feeding on volunteer corn plants. When one beetle lands to feed it tends to attract a lot of friends and mates ( Figures ). Japanese beetle ID. Japane...

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Center Field Day - July 26, 8 AM

Join personnel from the Northwestern Illinois Ag Research and Demonstration Center for their 36th annual field day on July 26. Buses will leave the research center (321 201th Ave, Monmouth) at 8 AM sharp and travel to different stops where researchers will discuss their research at the center. Presentati...

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Figure. Black cutworm. Note the small, black dagger-shaped marking on each outer wing.

Significant Black Cutworm Flights Continue

A significant black cutworm flight (9 moths) took place overnight May 3rd to 4th at the Northwestern Research Center in Monmouth. Along with rain, the recent weather system (which looked like a giant clock-wise turning hurricane over the middle of the US) likely carried North black cutworms. Entomologist and Illinois Natural History Survey's Coordinated Agricultural Pest Survey coordin...

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Figure. Black cutworm moth captured at the Northwestern Illinois Agricultural Research and Demonstration Center in Spring 2012. Note the characteristic black 'dagger' shaped markings located in the lower portion of the wing.
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Black cutworm trap: significant flight in fewer than 24 hours!

In cooperation with Kelly Estes of the Illinois Natural History Survey, every April personnel at the Northwestern Illinois Agricultural Research and Demonstration Center (NWIARDC) maintain a pheromone trap to monitor black cutworm (BCW) moths. Pheromones , or the sex hormones that are produced by female BCW moths, are...

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Registration now open for the 2017 Regional Crop Management Conferences

Registration is open for the 2017 Crop Management Conferences. These regional conferences provide a forum for discussion and interaction between participants and university researchers and are designed to address a wide array of topics pertinent to crop production in Illinois: crop management, pest management, nutrient management, soil and water management. Certified Crop Advisers can e...

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Figure. Fall armyworms collected in a pheromone trap at the Northwestern Illinois Ag R&D Center near Monmouth in 2016.

Fall Armyworms in Western Illinois: Is Your Pasture at Risk?

Monitoring insect populations. Insect pheromone traps are monitored throughout the growing season at the Northwestern Illinois Ag R & D Center in Monmouth. Pheromones are insect hormones that attract individuals of the opposite sex for mating purposes. In our traps a small piece of rubber is impregnated with a pheromone specific to the insect we are trying to monitor. The t...

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Grant Program for Farmers and Ranchers Interested in Increasing Sustainability

From soil erosion to compaction to weed management struggles, farmers know best what is may be limiting crop production or long-term sustainability in the fields that they farm. However during this period of razor-thin margins farmers may be unwilling or unable to fit the costs of experimenting with new conservation practices into their balance sheets. If you are a farmer that has an in...

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Figure. Japanese beetles feeding on corn silks at the Northwestern Illinois Ag R&D Center in Monmouth.
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To treat or not to treat: Japanese beetles abundant in corn and soybean

Posted by Angie Peltier - Insects

When walking along the edges of corn and soybean fields the last couple of days, I noticed many Japanese beetles feeding on both corn and soybean. A lot of Japanese beetles ( Figures ). Japanese beetle ID. Japanese beetles are oval shaped and have an iridescent metallic sheen. They have a green head and thorax and copper colored outer wings with a green s...

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Figure. Root pruning caused by rootworms at the NWIARDC in 2014. Significant root pruning can cause yield loss and harvest difficulties.
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Corn rootworm egg hatch dictates when best to scout for root injury

To provide corn producers with a method to estimate peak corn rootworm egg hatch and when to best scout for root feeding damage, the Illinois State Water Survey's Illinois Climate Network calculates accumulated pest degree days . They use daily maximum and minimum bare soil temperatures (52 degree minimum) at a 4 i...

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Figure. Black cutworm. Note the small, black dagger-shaped marking on each outer wing.
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Black Cutworm Flights Not 'Following the Rules' in 2016

Posted by Angie Peltier - Insects

In cooperation with Kelly Estes of the Illinois Natural History Survey, every April personnel at the Northwestern Illinois Agricultural Research and Demonstration Center (NWIARDC) maintain a pheromone trap to monitor black cutworm (BCW) moths. Pheromones, or the sex hormones that are produced by female BCW moths, are impregnated into small rubber lures that are placed in the center of a sticky...

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Figure. Western corn rootworm beetles feed on corn silks.

Western Corn Rootworms: Bt traits, in-furrow or seed treatment insecticides and resistance management

Posted by Angie Peltier - Insects

Western corn rootworm larvae feed on corn roots. This feeding injures corn roots, which can result in lost yield. Research has shown that for every one node of root pruned, there is an average of 15 percent yield loss. Research over the years has led to the development of multiple strategies to minimize rootworm feeding injury, from broadcast insecticides to crop rotation, from insectic...

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Figure. Attendees find some shade while listening to Dr. Emerson Nafziger talk about getting high soybean yields at the NWIARDC 2012 Field Day.
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Save the Date - NWIARDC 2015 Field Day!

Be sure to mark your calendars for the 34th Annual Northwestern Illinois Agricultural Research & Demonstration Center Field Day - this July 28 beginning at 8 AM!  Come and visit with University of Illinois research and Extension personnel as they share the results of farm-practical disease, pest, weed, and crop management research. Stay tuned for additional details rega...

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Figure. Black cutworm. Note the small, black dagger-shaped marking on each outer wing.
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Corn Producers Urged to Scout for Black Cutworms, Despite Lack of "Significant" Flight

Posted by Angie Peltier - Insects

Pheromone traps are set up at various locations throughout the state in order to register when a "significant" black cutworm flight, which occurs when nine or more moths are trapped over a 2-day period, has taken place. A significant flight indicates that these migratory insects have made their way into the area this spri...

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Figure. True armyworm moths captured using a pheromone trap. Moths are identified and counted to determine when large numbers of adults are migrating through the trap area and when to begin scouting.

What happens 1 to 2 weeks after 85 true armyworms land in my pheromone trap?

No this is not a trick question; let me explain. What are true armyworms ? True armyworms are insect pests of grasses and crops such as corn and small grains. Many of the Bt-traited corn hybrids express proteins that provide protection against the true armyworm. However, not every Bt hybrid provides pr...

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Figure. Soybean seed prices 2001-2014 (USDA-ERS).
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Soybean seed treatments: options, considerations.

According to the 2015 Illinois Crop Budgets prepared by University of Illinois Economist Dr. Gary Schnitkey, an estimated average of $78 per acre will be spent on soybean seed - the single largest direct cost of producing soybean. According to the...

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Exciting Program Planned for the 2015 Regional Crop Management Conferences!

Registration is now open for the 2015 Regional Crop Management Conferences. These 2-day conferences provide a forum for discussion and interaction between participants and university researchers and are designed to address a wide array of topics pertinent to crop production in Illinois: crop management, pest management, nutrient management, soil and water management. Certified Crop Advi...

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Figure. Spray rig.(Image: Howard F. Schwartz, Colorado State University, bugwood.com).

Pesticide applicator training and testing locations and dates set

The Illinois Pesticide Licensing Act requires licenses for anyone using restricted use pesticides or applying either restricted or general use pesticides as part of their job. There are five different license types and 17 different categories of lic...

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Figure. Click on one of titles listed below to access a course.
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Farmers, CCAs, anyone with an interest: Time spent with an online course is likely time well spent

Each year the University of Illinois Extension’s 2-day Extension Crop Management Conference series brings 13 hours of training to farmers, Certified Crop Advisors and other professionals working in agriculture. Extension personnel captured audio of three speakers presenting four different topics during the 2014 Crop Management Conferences. Personnel in the Extension web office then synced the a...

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Figure. A picture of root lodging due to a combination of rootworm pruning damage, saturated soils and wind. See me in the background below the arrow for perspective.
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Wind + saturate soils = lodging: Will lodging affect grain dry-down and harvest?

At various locations throughout the state, the Illinois State Water Survey (ISWS) collects wind speed measurements using an instrument called an ultrasonic anemometer. This device measures the speed of airflow every 10 seconds. The ISWS collects the average wind speed for each hour of the day. They also note...

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Figure. The main menu screen for Spray Calc; there are four main functions as well as a link to information about the app and a help icon that details what each main function in the app can be used to calculate (Photo and caption: Scott Bretthaeur).

Free University of Illinois App Developed to Help Applicators with Sprayer Calculations

University of Illinois Extension has released a new smartphone app to assist applicators with many of the calculations that are used when setting up and calibrating a sprayer. Pesticide Spray Calculator, or "Spray Calc", was developed by Scott Bretthauer , Ex...

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Clouds and corn

Resilient ag conference now open to crop advisors and farmers - Register by July 28th

CCA Continuing Education Units Available. Certified Crop Advisors can earn continuing education credits through in-person and online attendance of the Resilient Agriculture Conference, August 5-7, in Ames, Iowa. Most conference sessions will be live-streamed, with the exception of the field activities and farmers and crop advisors throughout the upper Midwest are encouraged to att...

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Figure. Japanese beetle; notice the iridescent metallic green head, the copper colored wings and the white tufts of hair along the sides and posterior. The tufts of hair or setae help in distinguishing the Japanese beetle from look alikes.
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Japanese beetles survived the winter, now what?

Posted by Angie Peltier - Insects

Strategy for Japanese beetle traps: Detection then removal. Late each May, I place a red insecticide strip and a pheromone lure into a specially designed Japanese beetle trap that resembles a colorful torpedo or bomb ( Figure ). The lure works to attract Japanese beetles two different ways, one portion holds a female sex pheromone that attracts males looking to m...

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2014 NWIARDC Field Day to Highlight Hot Topics in Agriculture

The program is set for the 33 rd annual University of Illinois' Northwestern Agricultural Research Center Field Day. The program will begin at 8 am on Tuesday, July 15 th . Buses will carry members of the public to different stops in the research center where campus-based specialists or Extension personnel will present the results of crop and pest management research...

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chemical bottles

Locations and dates set for 2014 Illinois Agrichemical Container Recycling Program

In cooperation with the Agriculture Container Recycling Council, GROWMARK, Inc., the Illinois Fertilizer and Chemical Association, Container Services Network, Illinois Farm Bureau, and University of Illinois Extension, the Illinois Department of Agriculture has set the dates for the 2014 plastic pesticide container-recycling program. Although there are three permanent collection sites i...

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Figure. Number of weed species resistant to two or more herbicide modes of action (Courtesy of Dr. Ian Heap weedscience.org).

We ignore biology at our peril

When so many of the factors that influence crop production are out of one's control, it is difficult to overcome the urge to continuously use pesticides and practices that have proved effective. But this is what one must do to in order to effectively manage pests and pathogens into the future. Although the weeds, insects and pathogens that we battle may outwardly appear to be identical,...

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