More resistant weeds popping up around the country

Herbicide-resistant waterhemp populations will challenge weed management practices and practitioners during the 2012 growing season.

University of Illinois associate professor of weed science Aaron Hager said that the increasing occurrence of waterhemp populations that possess resistance to herbicides spanning more than one site of action further complicates management because the efficacy of multiple herbicides is compromised.

Last year, University of Illinois weed science specialists published the results of a herbicide-resistance screening program for waterhemp samples submitted during the 2010 growing season. The program uses molecular biology techniques to detect herbicide-resistance traits (glyphosate, PPO inhibitors, and ALS inhibitors) in waterhemp. In 2011, a total of 408 plants from 97 different fields suspected of having glyphosate-resistant waterhemp were submitted.

Hager explained that distinguishing between multiple herbicide resistance at the field and individual plant levels is important and can impact management options.

“Field-level multiple resistance is when resistance to herbicides from more than one site of action is present within the population growing in any particular field,” he said.… Continue reading

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USDA serves up corn surprise

By Doug Tenney, Leist Mercantile

In what was a major surprise, USDA moved old crop ending stocks higher by 50 million bushels to 851 million bushels in today’s reports. Some say this comes from ideas that new corn will be used to satisfy old crop corn demand. Old soybean ending stocks were lowered 40 million bushels to 210 million bushels. Crush is up 15 million bushels and exports up 25 million bushels.

Corn is being called 10-15 cents lower. Some calls have old corn down 30 cents, new corn down 10 cents. Soybeans are called 20-30 cents higher.

New corn ending stocks were pegged at a whopping 1.881 billion bushels with a yield of 166 bushels. In the days preceding this report, traders were looking at the 2012 corn yield anywhere from 160-170 bushels. Most of the trade was using 164 to 167 bushels, so the 166 is not really a huge surprise.… Continue reading

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What are expectations for the corn-marketing year?

The steady decline in prices over the past few months reflects, in part, expectations for a large 2012 U.S. corn crop and some rebuilding of inventories during the year ahead, according to University of Illinois agricultural economist Darrel Good.

Good reported that the December 2012 corn futures reached a high of $6.735 on Aug. 31, 2011, declined to a low of

$5.23 on March 30, 2012, and are now trading near $5.40.

“Prospects for a large increase in corn acreage support expectations for more abundant stocks next year, but opinions about the magnitude of the build-up vary considerably,” Good said. “Since the end of the 2012-13 marketing year is 16 months away, uncertainty will abound for several more months.”

Expectations for the 2012-13 marketing year begin with the likely size of the 2012 crop, Good said. Producers have reported intentions to plant 95.864 million acres of corn, 3.943 million more than planted in 2011, pointing to acreage harvested for grain of about 88.8 million acres.… Continue reading

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Ponding effects on corn

By Peter Thomison, Ohio State University Extension corn specialist

Rainfall was mixed across Ohio during the past week. Although some areas of NW Ohio missed any appreciable rainfall, some fields in central and SW Ohio received up to 4 and 5 inches of rain resulting in localized ponding and flooding of corn and soybean fields. If the ponding and flooding was of a limited duration, i.e. the water drained off quickly within a few hours, the injury resulting from the saturated soil conditions should be minimal.

The extent to which ponding injures corn is determined by several factors including: (1) plant stage of development when ponding occurs, (2) duration of ponding and (3) air/soil temperatures. Prior to the 6-leaf collar stage (as measured by visible leaf collars) or when the growing point is at or below the soil surface, corn can usually survive only 2 to 4 days of flooded conditions.… Continue reading

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Pioneer Hi-Bred Launches Replant Calculator

A new tool with will help producers decide whether to keep their current stand or replant when crops have been impacted by weather, pests or other issues. Pioneer Hi-Bred is offering a replant calculator on Mobile Pioneer dot com. It takes into account the original date for planting, original stand target and resulting plant population and the possible replanting date. Growers are then asked to consider their own likely replanting seed and input costs. The calculator will provide estimates associated with the current stand and replant stand.

The calculator is based on a long-standing chart developed by Dr. Emerson Nafziger of the University of Illinois. It illustrates the effects of planting date and plant population on grain yield for the Corn Belt. It also accounts for the current shift to higher populations as suggested by Pioneer research and data.

The replant calculator is part of a suite of tools available on reading

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Growing organically suits Banzhaf Garten just fine

By Connie Lechleitner, OCJ field reporter

For Dave Benchoff, of Ashland, what began as a backyard garden has grown into a full-time business with Banzhaf Garten Organic Farm.

“We weren’t always health conscious, but having kids made my wife and I study where our food comes from,” Benchoff said. “My wife has food allergies to MSG and other preservatives, and our kids were starting to have them too. Our oldest son would break out into hives if he ate eggs from the store, but yet when we raised our own, he had no problem.”

The Benchoffs have three children, a son (21), daughter (16) and son (10). Benchoff and his wife, Lori, were living in Mansfield, where he was working as an EMT instructor and firefighter, handling 911 calls.

“When we turned 40, we decided it was time for a change, and we moved to the country in 1999. We got a good deal on a 20-acre farm, and I wanted to find something to do with the land besides mow it.… Continue reading

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Ohio Weekly Crop Progress Report-May 7, 2012

The average temperature for the State was 68.1 degrees, 12.7 degrees above normal for the week ending Sunday, May 6, 2012. Precipitation averaged 1.91 inches, 1.02 inches above normal. There were 116 modified growing degree days, 53 days above normal. Reporters rated 3.6 days suitable for fieldwork during the seven-day period ending Friday, May 4, 2012. Topsoil moisture was rated 0 percent very short, 10 percent short, 69 percent adequate, and 21 percent surplus.


Temperatures and precipitation for the State changed noticeably as the week progressed. The week started cool and dry, but warmer weather later in the week brought much needed rain. Reporters still indicated that field conditions were still slightly dryer than usual for this time of year. The large temperature swing placed a slight amount of stress on livestock, but the rain was needed to help germinate newly planted crops. Other field activities for the week include hauling grain and application of fertilizer and herbicide.

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What will be the impact of early wheat?

By Pierce Paul and Jorge David Salgado, Ohio State University Extension

On Friday April 27, wheat heads were observed in some fields in southern Ohio, about two weeks earlier than expected. Producers are asking whether such early development will likely have a negative effect on their crop. There is no easy answer to such a question; it all depends on the weather conditions over the next several weeks.

If cool weather occurs during most of the month of May, this will extend the grain fill period. Cool conditions will also reduce the development of foliar and head diseases such as Stagonospora and head scab, especially if it remains dry. Extended grain fill coupled with low disease severity will likely lead to higher grain yield and quality. However, wheat heading or flowering at the end of April or in early May is at greater risk for freezing injury. Two hours or more of exposure to 30o F could cause severe damage to wheat at the heading growth stage.… Continue reading

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Jim Herring, May 7

“The rain came down awfully hard and we probably got more than we needed. We got three inches of rain at home but only a quarter inch here in one of our fields. It is just a big difference in just 10 miles. There is about 80 acres that I am sitting on that I have to plant yet that I can plant today. The rest of the fields I have to plant are pretty muddy and it could be a while before they dry out. I have about 500 acres of beans left to go.

“I waited until April 22 to start with beans and those first beans are up and the stands look good.

Some of the corn sat in the ground for a couple of weeks, but it stayed dry, so it wasn’t cold and wet. Then it came up nicely. The stands look pretty good. It is off to a good start.”… Continue reading

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Mark Thomas, May 7

“In the general area, I would say guys have 60% or 70% of the corn is in the ground. Maybe 30% of the beans are planted. I finally saw corn come out of the ground on Friday. You could start seeing some rows.

“We got some crazy spotty rain. On Friday night, I got 1.8 inches. One or two miles north, they got a tenth of an inch. It was so spotty. One guy in Carroll County got three plus inches of rain. It absolutely flooded my yard. I came down hard.

“I mowed hay yesterday. We wanted to chop it. I figured we’d have all day today, but it is looking like that might not be the case. If this first system goes north of us we’ll still be OK. We had wanted to make hay for a long time, but the weather has just not cooperated.

“I have not planted any corn or beans yet.… Continue reading

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Mark Dowden, May 7

“We didn’t quite get done planting beans. We’ve got 115 acres of beans left to plant. We’ve been doing a little spraying on the corn.

“We had pretty good rain go through the county on Friday evening. We got anywhere from .1 to 1.9 inches within 7 miles. We went to Springfield yesterday and there is quite a bit that will have to be replanted over there. They had some good crops but they got covered up. The southern edge of Champaign County had the big rains come through. I went past a field that they will just probably have to start over.

“This heat turned things on. The crops are just going. We’re trying to get some spraying done this morning before more rain. The water got away pretty quickly from the last rain. A light rain would help wash off some of the plants that got mud on them.… Continue reading

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Billy Pontius, May 7

“We need it to quit raining for a while so we can get the rest of these beans in. We’ve gotten two inches in the last week, so it’s pretty wet. Most of my corn is OK. It has emerged well. But if we keep getting rain, it will start drowning things out.

“We have about 500 acres of beans left to plant. I only need three or four days.

I am surprised that I haven’t had any cutworm problems. We put insecticide on everything and I think that helped. With this warm weather, the corn will outgrow the pests I hope.

“We’ve got some beans up — the first ones we planted are up and looking pretty good. I am really pleased with the corn. I was a little leery starting early with corn and then having all of that cold weather. But if we hadn’t started early, we’d be behind with all of this rain.… Continue reading

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Some growers considering replanting

The cold temperatures in Ohio during the last week of April, followed by heavy rains in some parts of Ohio have some corn growers concerned about the health of the crop and thinking about whether to replant their fields, says an Ohio State University Extension agronomist.

While there is little evidence that most corn plantings in Ohio have been jeopardized by the cooler temperatures, some farmers in localized areas where cold soil temperatures resulted in loss of plant stand may be considering replanting their fields, said Peter Thomison.

“Replant decisions in corn should be based on strong evidence that the returns to replanting will not only cover replant costs but also net enough to make it worth the effort,” he said. “Don’t make a final assessment on the extent of damage and stand loss too quickly.”

Thomison said that if growers decide they need to replant after completing a crop damage assessment, they need to consider the following:

* Original target plant population/intended plant stand.… Continue reading

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Ethanol rocks video contest


As the E15 ethanol fuel blend prepares for its national debut, the National Corn Growers Association calls on students to channel their “inner Spielberg” and submit entries in the Ethanol Rocks video contest.


“Today, we’re distributing Ethanol Rocks video contest application and rules packets online and to FFA chapters and members of the National Science Teachers Association,” said Chad Willis, chairman of NCGA’s Ethanol Committee. “Statistics and studies confirm that ethanol keeps the cost of gasoline down and reduces harmful emissions into the environment, and we’re looking for creative ways to tell ethanol’s great story. By giving American youth a creative platform, we hope to discover a wide variety of interesting perspectives on the benefits of ethanol.”


The contest is looking for short videos (2 minutes or less) from active high school and college students that highlight the benefits of ethanol fuel blends to the U.S. environment and economy.… Continue reading

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Cool temperatures have slowed early corn

Cool temperatures and frost have slowed development of corn for farmers who planted earlier this year than ever before, a Purdue Extension corn specialist says.

“Probably the best way to describe the general condition of the crop to date is that it is behaving like a crop that was planted in late March and early April,” said Bob Nielsen. “Many of the surviving fields are light green to almost yellow. Almost all of the fields are developing slowly relative to calendar time but are on schedule relative to the more typical cool April temperatures and the resulting slow accumulation of growing-degree days.”

Growing-degree days are a measure of heat accumulation to predict plant development rates. It takes about 115 GDDs for corn to emerge. In a typical Indiana March, GDDs would be almost zero. But because of the unusually warm air temperatures and subsequent warm soil temperatures, the average daily accumulation of soil temperature-based GDDs was about 8-12 per day in the central part of the state, Nielsen said.… Continue reading

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Wheat blast could be a threat to Ohio’s crop

University of Kentucky College of Agriculture soil scientist Lloyd Murdock recently found a new disease that could have important implication for Ohio wheat production.

Wheat blast was discovered on a single wheat head in May of 2011 at a University of Kentucky

Research and Education Center research plot in Princeton. No additional instances of the disease were found even after extensive scouting of the involved research plots and neighboring fields. It is likely, however, that additional infected heads existed but at levels too low to make detection possible.

Wheat blast is a disease that is recognized as an emerging threat worldwide. Caused by the fungus Magnaporthe oryzae/Pyricularia grisea, the disease was first detected in southern Brazil in 1985 and has since become a problem in several of its neighboring countries in South America. Crop losses of 40% are common and cases of 100% loss have been reported. Currently, there are no commercially available resistant varieties and fungicidal programs targeting wheat blast have generally been ineffective.… Continue reading

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Research shows N efficiency improving in corn

Today’s hybrid corn varieties more efficiently use nitrogen to create more grain, according to 72 years of public-sector research data reviewed by Purdue University researchers.

Tony Vyn, a professor of agronomy, and doctoral student Ignacio Ciampitti looked at nitrogen use studies for corn from two periods — 1940-1990 and 1991-2011. They wanted to see whether increased yields were due to better nitrogen efficiency or whether new plants were simply given additional nitrogen to produce more grain.

“Corn production often faces the criticism from society that yields are only going up because of an increased dependency on nitrogen,” said Vyn, whose findings were published in the early online version of the journal Field Crops Research. “Although modern hybrids take up more total nitrogen per acre during the growing season than they did before, the amount of grain produced per pound of nitrogen accumulated in corn plants is substantially greater than it was for corn hybrids of earlier decades.… Continue reading

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CME new hours plans delayed

Because CME Group Inc. (CME) has not yet officially notified the Commodity Futures Trading Commission  (CFTC) of its plan to expand its grain futures trading hours, the new hours announced this week will not be able to be implemented on May 14 as planned.

A “self-certification” form must be submitted to the CFTC by the CME disclosing its plans to change hours. Once submitted, the change in hours can’t take effect for 10 business days.


 … Continue reading

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