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Northern Illinois Agriculture

University of Illinois Extension
Herbicides
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Productive week at NIARC and Northern Illinois

Prior to the weekend storm events that rolled across northern Illinois, tremendous progress was made in planting the 2015 corn crop. Planters were running late into the night despite temperatures that stayed near or slightly below seasonal averages for most of the week. Statewide, NASS reported that corn planting advanced 38% in the week ending May 3rd. In addition to planting corn and soybean plo...

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July 10th Agronomy Day Program - Doug Maxwell

Weed resistance update from NIARC Agronomy Day

On July 10th at the NIARC Agronomy day, Doug Maxwell, principal research specialist from the University of Illinois Department of Crop Sciences shared weed control research underway at the research center. Attendees had the opportunity to view herbicide, herbicide combinations and programs effectiveness on the spectrum of northern Illinois weeds in both corn and soybean settings. A collection of p...

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End of planting

Expected seasonal weather allowed us to nearly complete planting at the NIARC. It has also been a busy time sidedressing nitrogen, applying herbicides,evaluating emergence and early season growth. For most in northern Illinois soybean emergence has not progressed far enough to evaluate possible herbicide injury. However reports from elsewhere in the state have shared issues with soil-applied PPO-i...

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Dr. Mike Gray
2014 Corn and Soybean Classic - Malta

Corn & Soybean Classic

The Corn and Soybean Classic moved through northern Illinois yesterday. This is the 17th year of the University of Illinois outreach program that brings agronomy and economic research from the University to the rest of the state. I was part of an audience of nearly 100 that garnered some interesting facts from the speakers. Here are just a few; Jim Angel...

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Time to revisit fields

If you haven't already done so, this would be a great time to revisit your corn and soybean fields. Pollination is complete and a trip in the corn field should not result in being covered in pollen. What to look for in the fields? Starting with corn pollination success, pull several random ears and evaluate how well the field/hybrid pollinated.   ...

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Are the weeds dead?

Three tenths of an inch of rain over the weekend, putting the NIARC at .69 inches in July. Like many growers we are keeping a close eye on some over-sized weeds that were treated with post applications of herbicide. Experience has told us that weeds we thought were dead, actually were not! This is especially true when dealing with Giant ragweed. A busy day at the NIARC, Lisa Gonzini rated herbicid...

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Big weeds

Weather conditions have pushed back many post herbicide applications. This is most obvious in soybean fields where oversized  Giant ragweed, Marestail, and Waterhemp are showing varying degrees of injury from post herbicde applications. The success of the post applications will be dependent partially on environmental conditions and are far from guaranteed. Growers are encouraged to keep an eye on...

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Hot weather on the way

I just returned from a week in California (because when this trip was planned we certainly would be finished planting and early herbicide applications would be done by the 1st) . I learned about the June gloom while in southern California, and even had the opportunity to tour the USS Iowa on the anniversary of D-day. But back in Illinois it appears that the warm weather that has...

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Crop height restrictions for post herbicde applications

As the rain continues to pop up over fields and in future forecasts, coupled with warmer temperatures and rapidly growing corn and weeds, concern has arisen on our window for herbicide applications. In some instances, scheduled or not, the management program is now a total post emergence program. In a recent Illinois Bulletin article Dr. Aaron Hager addressed this issue. "Most, but not...

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North Central Weed Science Society

I have finished day two in St. Louis at the North Central Weed Science Society meeting. It is the first NCWSS program I have attended and I find and the format very interesting. Beyond the opening general session the entirety of the conference consists of 15 minute presentations by graduate students, academics, and industry folks. What have I learned so far? Herbicide resistant weed pop...

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Tillage studies

With harvest finished at the Northern Illinois Agronomy Research Center; we are concentrating on our last pieces of field work. We noticed an apparent increase in tillage operations that have taken place across Illinois; including tillage operations on soybean stubble ( dubbed "revenge tillage" by Dr. Emerson Nafziger ). The apparent renewed interest in tillage has spurred us to...

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Signs are up

Are you interested in comparing different herbicide combinations and programs? Would you like to know how they perform on a stressful year? Come and visit the NIARC! The weeds crew worked through another day in the upper nineties signing plots for our Agronomy Day next week. Whether you join us next week or later in the summer you can do some "comparison shopping" for your next years herbicide pro...

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Hot temperatures, hot herbicides!

As the temperatures rachet back up we are noticing various reactions by our crops to post herbicide applications. A certain amount of crop injury is expected with some herbicide families like the diphenyl ethers (can you pick the treated plots in our high yield soybean study?) We are also seeing bronzing and yellowing with other herbicides that are not normally known for crop injury, including...

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lisa G

What did the weatherman say?

Lisa Gonzini, research specialist with the University of Illinois department of Crop Sciences had an early start to her day in an attempt to travel from campus to the NIARC to make post herbicide applications before the wind speed picked up. Even though the weather prediction was a calm day until mid to late afternoon we clocked winds of near 13 mph by 9:30 am. Lisa and the rest of us will be fini...

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Herbicide injury starting to show in northern Illinois corn fields

Stephanie Porter sends a weekly summary of diseases and plant injuries diagnosed from samples submitted to the University of Illinois plant clinic. Visit the plant clinic site to learn all that they have to offer http://web.extension.illinois.edu/plantclinic/ In this week's report several corn seedling samples had been...

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Frost in the morning, planting in the afternoon

I'm sure it has happened before, but I cannot remember planting after experiencing morning frosts. Our March 29 planted corn has a 1"coleoptile working its way to the soil surface. Our soil has crusted and the future seedlings would benefit greatly with some rainfall. Today we set stakes for our second planting date for corn (April 20th), it is of interest that there will be numerous corn acres pl...

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