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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.
Weather
Figure. Corn growth after different planting dates on May 18, 2017.
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Following Crop Development in a Corn Planting Date Trial

You might have always wondered whether there was some way to estimate when your corn crop is likely to reach the silking and black layer growth stages. Well you might just be in luck if you gather the following information about a particular corn hybrid (when it was planted, where it was planted, its estimated days to maturity) and use any internet browser to visit...

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Image citation: Daren Mueller, Iowa State University, Bugwood.org

Impacts of Saturated or Flooded (or Crusted) Soils on Crop Plants

The Northwestern Illinois Agricultural Research & Demonstration Center (NWIARDC) received 6.24 inches of rain in April, more than 3 inches of which fell over the last 5 days of the month. Relatively speaking the Monmouth area lucked out as further South, both Perry and Snicarte accumulated more than 5 inches, Belleville more than 6 inches, Rend Lake nearly 8 inches and Carbondale more than...

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Figure. Brian Mansfield and Marty Johnson scramble to get planter boxes filled before a storm rolls in at the NWIARDC (May 7, 2014).

April weather and planting progress

Weather. As of early morning April 27, the Northwestern IL Ag R&D Center in Monmouth had gotten 4.22 inches of rain, 3/10 more than the 30-year 'normal'. If the forecast over the next couple of days is accurate, by the end of the day on the 30 th , we will likely have 3 inches more rain in April than the 30-year average. Temperatures on average had...

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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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Figure. Anhydrous ammonia tank (Gerald Holmes, Valent USA Corporation, Bugwood.org).

Dr. Nafziger to Present Nitrogen Management Webinar on Thursday, March 30

In the Bulletin , Dr. Emerson recently announced a nitrogen management webinar that he will present this Thursday: "On Thursday, March 30 beginning at 9:00 AM, I will present a webinar summarizing our recent N management research, which is funded by the Illinois Nutrient Research and Education Council (NREC) using fertilizer checkoff funds. Topics will include the status...

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Participating Counties

February 28 Soil Fertility Seminar to offer continuing education

Soil fertility, crop production practices and environmental stewardship will be the foci of a Soil Fertility Seminar on February 28, 2017 in 18 different University of Illinois Extension county offices. Presentations will be delivered through web conferencing from 9 a.m. to 2:30 p.m. Topics and speakers will include: Increasing importance of sulfur for field cro...

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W IL Map

Extension Bi-State Crops Conferences in and near Western Illinois

New and longer-term partnerships between personnel in Illinois and personnel in Missouri and Iowa have resulted in several bi-state crops conferences to be held during January 2017 in Western Illinois or Eastern Iowa. Friday, January 6, 2017: Bi-State Crop Advantage Conference, Burlington, IA, 8:30 AM - 4:00 PM...

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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. Sudden death syndrome symptoms are often found in patches  in the field.
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The first indications of an epidemic year for sudden death syndrome?

A couple of weeks ago during my morning commute to work between Galesburg and Monmouth a patch of soybeans about 20 feet from the highway was yellow enough to be seen while driving more than 55 mph. Last Thursday, I found a spot to park along the side of the highway to try and figure out what may be causing these symptoms. Narrowing down a disease diagnosis. At eye-leve...

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Figure. Still image of peak radar reflectance captured during the early morning hours of June 22, 2016 (data source: NOAA).
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Weather Summary: June 22, 2016

Posted by Angie Peltier - Weather

After a crop-damaging weather event, it may be of interest for people to learn just exactly what took place. While recent articles detailed the potential effects of the severe weather on growth and development of corn and soybean and discussed...

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Figure. Corn plants injured by wind and hail on June 22, 2016 at the Northwestern Illinois Agricultural R&D Center in Monmouth.
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Foliar Fungicides on Hail Damaged Corn and Soybean: Does it Pay?

After the Wind and Hail: Corn and Soybean Recovery and Yield Potential. The severe weather that rolled through several counties in Western Illinois in the early morning hours of June 22 makes one think long and hard about how wind- and hail-damaged corn and soybean crops might fare and whether there is anything that can be done to help to preserve remaining yield potential (...

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Figure. Corn curling due to abnormally dry conditions at the Northwestern Illinois Agricultural Research and Demonstration Center on June 21, 2016.
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Crops need the forecasted rain

Posted by Angie Peltier - Weather

According to the U.S. Drought Monitor's June 14 report, the Northwestern Illinois Agricultural Research and Demonstration Center (NWIARDC) outside of Monmouth is part of the 36 percent of Illinois that is considered abnormally dry ( Figure ). This is the designation that is typically precedes a drought declaration. The below average rainfall totals and above average high...

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Figure. Herbicide injury symptoms on corn at the Northwestern IL Ag R&D Center in May, 2016.
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Cold, Cloudy, Wet Weather May = Herbicide Injury in Corn in 2016

Injury symptoms on corn plants. While passing by on the way to plant a bulk soybean field on Tuesday, personnel at the Northwestern Illinois Agricultural Research and Demonstration Center (NWIARDC) noticed that plants in one of the center's corn fields didn't look so hot ( Figures ). The crop was planted on April 16 and sprayed on April 25 before emergence....

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Figure. Uneven crop development and poor populations were observed in corn plots planted on March 8, 2016.
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March 8 corn planted at either 1.5, 2.0, 2.5 or 3.0 inches deep – Effects on crop development and population

On May 17, Ryan Farmer, a student hourly worker at the Northwestern Illinois Agricultural Research and Demonstration Center (NWIARDC) collected stand count data from a demonstration trial that had been planted more than 2 months earlier. On an unseasonably warm March 8 day NWIARDC personnel decided to see just how wise it is to plant that early in the Monmouth area. Needing to calibrate...

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Figure. Photo taken on May 10 of corn that had been planted on April 5 in a planting date trial at the NWIARDC.
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Planting and Crop Progress

State and Region. According to the USDA's National Agricultural Statistics Service corn planting and emergence and soybean planting in Illinois have progressed faster than the running 5-year average (2011-2015, Figure). Similar to in 2015, the nine counties that make up the western Illinois crop reporting district lead the state in both corn and soybean planting, with 94 percen...

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Figure. Soil temperatures at the Northwestern IL Ag R&D Center in Monmouth, IL from March 1 through April 5, 2016 at 2 and 4 inch depth under bare soil and 4 inch depth under sod (data source: Water and Atmospheric Resources Monitoring Program. Illinois Climate Network. (2016). Illinois State Water Survey, 2204 Griffith Drive, Champaign, IL 61820-7495.)

Weather Summary and Soil Conditions - January through April 5, 2016

Posted by Angie Peltier - Weather

Precipitation. Although it may seem to be a rainy first quarter of 2016 as many of the more recent rain events are taking place at a time when spring field operations should be taking place, total precipitation at the Northwestern Illinois Agricultural Research and Demonstration Center in 2016 is ½ inch below normal (Table). Both January and February were more than 1 inch below...

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Figure. Photo of a October 12, 2015 fire across the highway from the NWIARDC (credit: Brian Mansfield).
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Dry times: August and September 2015 Weather Summary

Precipitation. August precipitation at the Northwestern Illinois Agricultural Research and Demonstration Center (NWIARDC) totaled 3.47 inches, 1 inch less than the 30-year "normal" for the month ( Table ). September precipitation totaled 2.81 inches, nearly 1 inch more than the 30-year normal for the month. The NWIARDC is located a little more than 4 miles West o...

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Figure. Profile photo of the waterhemp infestation in a soybean field in Western Illinois in 2015.

Can I assume that these waist-high weeds are waterhemp plants?

Growing conditions influence growth and development of weed plants. Each of the past several growing seasons has seen unique challenges and triumphs. In 2012, favorable soil conditions allowed for early planting, soon followed by drought conditions. In 2013, record-setting spring rains delayed planting. While in 2014, mild temperatures and timely rain events led to record-setti...

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June and July Weather Summary and July Tornadoes.

Posted by Angie Peltier - Weather

Precipitation. June precipitation at the Northwestern Illinois Agricultural Research and Demonstration Center (NWIARDC) totaled 8.13 inches, more than 3.5 inches above the 30-year "normal" for the month ( Table ). July precipitation totaled more than 9 inches, nearly 5 inches more than the 30-year normal for the month. To put these two months into perspec...

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Figure. In 2015, moderate temperatures and long periods of leaf wetness favored the development of northern leaf blight in corn hybrids without a high level of disease resistance (June 29, 2015).

Many factors converge toward a decision - foliar fungicides on corn

Foliar fungicides in corn - a historical perspective. From the early 1970's through the mid-2000's, when prices averaged close to $2 per bushel and corn was considered a lower value crop, producers worked to minimize all but the most essential inputs. Between 2010 and 2012, when corn prices reached historic highs, producers may have considered additional inputs. While many product...

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Figure. Marty Johnson and Brian Mansfield plant corn at the NWIARDC on April 21, 2014.
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Forecasted cool, wet weather + closing canopies + flowering soybeans = white mold risk

Despite the timely soybean planting in the Western Illinois crop reporting district, torrential rains and cloudy days have since delayed crop progress throughout much of the region. As of June 29, only the earliest planted soybeans at the Northwestern Illinois Agricultural Research & Demonstration Center (NWIARDC) have open flowers ( Table ). Table....

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Image citation: Daren Mueller, Iowa State University, Bugwood.org

Water, water everywhere: what happens to flooded corn and soybeans?

The Northwestern Illinois Agricultural Research & Demonstration Center (NWIARDC) has had 4.73 inches of rain so far in June, 4.4 inches of which fell over a 10 day period. Relatively speaking, the Monmouth area lucked out, as a little bit further to the East Peoria has accumulated 9.06 inches of rain since June 7 and 4 days of more than 1 inch (1 had 2.83 inches total). Frequent and...

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Figure. Daily rain totals for May 2015 (Source: Water and Atmospheric Resources Monitoring Program. Illinois Climate Network. (2015). Illinois State Water Survey, 2204 Griffith Drive, Champaign, IL 61820-7495).

Average May 2015 Weather Near 30-Year "Normal"

Posted by Angie Peltier - Weather

Precipitation. May precipitation at the Northwestern Illinois Agricultural Research and Demonstration Center (NWIARDC) totaled 4.76 inches - surpassing the total accumulated during the four previous months combined ( Table ) and totaling very close to the 30-year normal. Unlike other areas of the state and country that were deluged with several inches of rain at...

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Figure. Corn Growing Degree Day decision support tool. After a location is selected, the tool can be further customized to include planting date and hybrid-specific information regarding phenological milestones (see blue box). (Credits: U2U Project: https://mygeohub.org/groups/u2u/gdd)

Free Corn Growing Degree Day (GDD) Decision Support Tool

Through funding provided by the USDA-National Institute of Food and Agriculture, a group of researchers from nine different Midwestern states and Universities worked collaboratively to develop a series of decision support tools for Midwestern crop producers. One of these is called the Corn Growing D...

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Figure. Note the dark rain clouds ready to drop rain on the SDS seed treatment trial just planted at the NWIARDC (Image credit: Marty Johnson).
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Rains Help Create Conditions Favorable for Disease

A wet week. In a 7 day period between May 4 and 10, the Northwestern Illinois Agricultural Research & Demonstration Center (NWIARDC) received 2.21 inches of rain ( Figure ), an inch more than was received during the entire month of April! This rain largely put a stop to most field operations at the NWIARDC. Seed treatment trial planted....

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