Monthly Archives: April 2015

Prepare for the Critical Period of Weed Control

Joe Armstrong
Field Scientist
Dow AgroSciences

Joe-Armstrong

There is a point early in the growing season when weeds can begin to harm soybean yield, which university experts call the critical period of weed control.

The critical period is when weeds start to compete for valuable resources soybeans need to grow strong. Consequently, weeds become a threat to yield. Controlling weeds early in the season with a preemergence herbicide, starting before the critical period, is fundamental to protect your customers’ crops and their profits.

Growers can stay a step ahead of tough weeds such as waterhemp and marestail by using a preemergence herbicide with residual control. Waterhemp and marestail are two of the most troublesome weeds in the Midwest, but by understanding their germination patterns and controlling them early, growers can better protect their yield.

waterhempWaterhemp is an aggressive, small-seeded summer annual that can germinate and emerge late in the growing season. It has developed widespread herbicide resistance and is highly competitive, a difficult combination for soybean growers.

marestailMarestail is an annual broadleaf weed that causes the most trouble in reduced or no-till situations. It grows quickly and can rapidly consume a field. Marestail typically has been recognized as a winter annual; however, in recent years, its germination pattern has changed, and it now can germinate eight to nine months out of the year, interfering with crops during peak growing season.

To control these difficult weeds before the critical period of weed control, use Sonic® herbicide preemergence. With two modes of action and residual control, Sonic controls yield-robbing weeds at planting and into the growing season.

Learn more at BattleWeeds.com or by contacting your local Dow AgroSciences sales representative.

®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow. Sonic is not registered for sale or use in all states. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. Always read and follow label directions. ©2015 Dow AgroSciences LLC

EPA Approves Enlist Duo™ Herbicide for Use in Additional States

Key component of Enlist Weed Control System provides excellent weed control,
maximizing yield potential

On April 1, the U.S. Environmental Protection Agency (EPA) announced its approval of Enlist Duo herbicide for use in additional states. A key component of the innovative Enlist Weed Control System, Enlist Duo with Colex-D Technology is the only herbicide to combine the proven performance of glyphosate with new 2,4-D choline for exceptional weed control in corn and soybeans.

Enlist_Logo_Horz_TagThe label for Enlist Duo now includes federal registration in many of the key corn- and soybean-producing states. The newest additions are Arkansas, Kansas, Louisiana, Minnesota, Missouri, Mississippi, Nebraska, Oklahoma and North Dakota. The originally approved states — Illinois, Indiana, Iowa, Ohio, South Dakota and Wisconsin — were included on the federal label when the EPA registered Enlist Duo for use with Enlist corn and soybeans in October 2014. Dow AgroSciences will continue to work closely with state regulatory authorities to obtain local approvals. Regulatory approvals are pending for Enlist cotton.

“More than 84 million acres of farmland are infested with glyphosate-resistant weeds.1 And that number continues to climb each year, making the EPA’s decision critical,” says Susanne Wasson, U.S. crop protection commercial leader, Dow AgroSciences. “Growers need access to this much-needed, effective weed control solution.”

Recent feedback from growers from on-farm trials overwhelmingly rated the weed control with Enlist Duo herbicide higher than their current weed control system. Growers stated Enlist Duo provided improved weed control — particularly of glyphosate-resistant weeds. In addition, growers were impressed by the lack of drift and volatility. The proprietary Colex-D Technology in Enlist Duo helps ensure the herbicide lands and stays on target with minimized potential for drift and volatility.

“Reduced off-target movement is important on our farm,” says Josh Lloyd, Kansas grower. “I want a product that will stay exactly where we spray it. With the new formulation, Enlist Duo with Colex-D Technology gives me that peace of mind. And it’s a tool that will help many Kansas growers manage tough weeds.”

Dow AgroSciences will launch Enlist Duo in conjunction with a stewarded introduction of Enlist corn and seed production of Enlist soybeans in 2015. With this announcement, growers in key production areas soon will have access to the new herbicide technology. The company continues to work with the EPA to further expand the list of states on the federal label.

To learn more about the Enlist Weed Control System, visit Enlist.com or the Enlist YouTube channel, and follow @EnlistOnline on Twitter.

Dow AgroSciences representative John Laffey (left) and Brett Reiss check weed  control in a research plot for Enlist Duo™ herbicide on Reiss’ farm in Kansas.

Dow AgroSciences representative John Laffey (left) and Brett Reiss check weed
control in a research plot for Enlist Duo™ herbicide on Reiss’ farm in Kansas.

1Stratus Ag Research. 2014. Glyphosate Resistance Tracking Study.

®™DOW Diamond, Colex-D, Enlist and Enlist Duo are trademarks of The Dow Chemical Company (“Dow”) or an affiliated company of Dow. Regulatory approval is pending for Enlist cotton. Enlist Duo herbicide is not registered for sale or use in all states. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. Always read and follow label directions. ©2015 Dow AgroSciences LLC

Eliminate Weed Pressure with SureStart® II Herbicide

Ben Moye, of Ridgway, Illinois, grows corn, soybeans, wheat and grain sorghum on a farm that has been in his family for four generations. He returned to the farm five years ago and began using SureStart® herbicide to control common, high-anxiety weeds in his area, such as waterhemp, Palmer amaranth and barnyardgrass.

“Corn yields are heavily impacted by weed pressure, and the one thing that we’ve seen with SureStart is that we’ve eliminated the weed pressure, which has brought us better yields,” Moye says. “In the last five years since we’ve done the SureStart program, we feel that our yields have increased.”

For growers across the Midwest, rainy spring weather can throw a wrench in spraying and planting plans early in the season. When weather causes delays, Moye relies on the application flexibility of SureStart II herbicide, which can be applied from preplant up to 11-inch corn.

“The great thing about SureStart is its ability to be able to have a wide range of applications,” Moye says. “With the last couple of springs that we’ve had when we get the rains in, some of the corn shot up, and it’s got some growth to it, so it’s given us the ability to come back in and put SureStart on and not have to worry about crop injury.”

For more information about SureStart® II herbicide, visit GetMoreTime.com or contact your local Dow AgroSciences sales representative.

SureStart-Ridgeway-ILjpg

®Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow. SureStart and SureStart II are not registered for sale or use in all states. SureStart and SureStart II are not available for sale, distribution or use in Nassau and Suffolk counties in the state of New York. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. Always read and follow label directions. ©2015 Dow AgroSciences LLC

Keep Nitrogen Where It’s Needed with Instinct® II Nitrogen Stabilizer

Duane Schwickerath, of El Vista, Iowa, uses Instinct® II nitrogen stabilizer to reduce nitrogen loss at the root zone. In 2011, Schwickerath saw a 7- to 14-bushel per acre yield increase when he stabilized nitrogen with Instinct II. Now, he has peace of mind knowing that, by using Instinct II, nitrogen will be available to his corn plants when it’s needed most.

We use a nitrogen stabilizer for a lot of reasons,” Schwickerath says. “We can cut back on our nitrogen use. We can protect our groundwater. We can have more profit at the end of the year because we cut back on our nitrogen cost, and it does increase yield.”

Instinct II supports conservation efforts by reducing leaching of nitrogen into groundwater. Watch this video to hear more from Schwickerath and his agronomist, Bob Sobolik, of Five Star Cooperative.

For more information, visit NitrogenStabilizers.com or contact your local Dow AgroSciences sales representative.

®Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow. Instinct II is not registered for use or sale in all states. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. Always read and follow label directions. ©2015 Dow AgroSciences LLC

Don’t Let Insects Threaten Yield

Insect pressure can vary widely depending on many factors. Production practices, crop rotation, geographic location, overwintering habitiats and particularly weather will dictate which insect pests will make an appearance in growers’ fields this season.

Dow AgroSciences offers a robust crop protection portfolio with advanced technology to help your customers protect their yield by preventing the damage of high-anxiety pests.

“Some of the usual suspects for corn are corn rootworm, western bean cutworms and corn armyworms,” says David Martin, Dow AgroSciences insecticides product manager. “In soybeans, beetles, spider mites and soybean aphids are a few pests that growers should have on their scouting list for this summer.”

Cobalt® Advanced insecticide is a go-to insecticide for control of many of the major pests that growers encounter each year in soybeans, corn, alfalfa, sorghum and wheat. They include Japanese beetles, bean leaf beetles, corn rootworm beetles, spider mites and other insect pests.

Transform® WG insecticide, the newest insecticide offering from Dow AgroSciences, brings a unique mode of action for leading control of soybean aphids. Transform works through contact and ingestion and moves through the plant via systemic and translaminar activity, which provides excellent residual control of aphids after the soybean plant has been sprayed.

Transform can be applied in a tank mix with herbicides and fungicides and with a short re-entry and pre-harvest interval your customers can get back to the field with minimal downtime.

soybean-aphids

Soybean aphids proliferate quickly under ideal weather conditions, and normally are found in soybean fields from late May through August. Photo credit: University of Illinois

Soybean aphids can pose a significant risk to soybean production because of their tremendous reproduction potential. In season, the population size can double every two or three days if weather conditions are ideal.

“The soybean aphid is definitely an insect pest to watch this year,” Martin adds. “During an outbreak year, heavy infestations can reduce yields by 40 percent or more.”

To learn more about Transform and Cobalt Advanced, visit TransformMySoybeans.com and CobaltAdvanced.com.

 

Cobalt Advanced is a federally Restricted Use Pesticide. ®DOW Diamond, Cobalt and Transform are trademarks of The Dow Chemical Company (“Dow”) or an affiliated company of Dow. Cobalt Advanced and Transform WG are not registered for sale or use in all states. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. Always read and follow label directions. ©2015 Dow AgroSciences LLC

Partnership Between Farmers and Industry Aids Productivity Increase

Daniel R. Kittle, Ph.D., Vice President of Research and Development, Dow AgroSciences

As someone with deep roots in farming, I can tell you that the quaint picture of family farms has changed. Yet, the core principles haven’t changed in centuries. Family farmers plant and harvest based on intimate knowledge of their land, weather patterns, and weed and insect issues.

But today, the number of hands who assist with the farming tasks is smaller than ever – less than one percent of our population in the U.S. At the same time, technology and improved farm practices have allowed those family farms to be highly productive. Economies of scale can be realized even on smaller farms, contributing to overall gains in production. According to the USDA, 50 years ago, corn yield was about 63 bushels (bu) per acre; 25 years later, it was 116 bu/acre; and in 2013, it was nearly 160 bu/acre.

There are many reasons for productivity increase, but a critical piece of the puzzle is the partnership between farmers and the industry that supplies them. New chemical solutions control insects, weeds, and diseases, while new seed varieties and traits improve plant health and resiliency. These technological advances, developed through an ongoing dialogue between growers and agricultural sciences companies, give family farmers the freedom to use their own knowledge and skills to make the most out of each acre of land.

Today’s family farmer is an entrepreneur with access to knowledge and technology undreamt of by my grandparents. Satellites used for precision farming, high-tech combines with cabs that look like airplane cockpits and mobile apps that help growers make key decisions. As these tools and techniques become more widely available, they’ll be used by a larger proportion of family farms around the globe, where the demand for high-quality produce and protein is growing rapidly. At Dow AgroSciences, farmers are our heroes, and we’re honored to help celebrate the “Year of the Farmer” at the 2015 Indiana State Fair, and we wish farmers the very best as they enter the new growing season.

dan-kittle-video

Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow. ©2015 Dow AgroSciences LLC

Tackling Herbicide Resistance This Spring

Growers across the Corn Belt continue to seek solutions to battle growing populations of difficult-to-control and resistant weeds. Many weeds no longer can be controlled with glyphosate alone, making it vital to plan a herbicide program with multiple modes of action to combat resistance.

“This (past) spring at planting, we were very wet, and that just really puts things in a bind,” says Bob Hartzler, Iowa State University Extension weed specialist. “Unfortunately, some growers want to get the crop in and they have a tendency to skip the preemergence herbicide, which really can come back to haunt them. We got spoiled when glyphosate controlled everything. We could skip the ‘pre-s’ and get by, but those days are over.”

Click on the video below to hear more from Bob Hartzler as he discusses herbicide resistance with agricultural broadcaster Max Armstrong.

Bob-Hartzler-video

Herbicide resistance continues to spread across the Corn Belt and more weeds are able to survive glyphosate-only applications. This map shows where glyphosate-resistant weeds have been confirmed.

US_Map_GlyphoResWeeds

Despite resistance issues, there are weed control tools available to keep fields clean and protect yield potential. A two-pass weed control system containing a residual herbicide is proven to stop weeds more effectively than a program using glyphosate alone.

Start this season on the right foot — with clean fields and reduced early season weed competition — using SureStart® II herbicide preemergence. Its multiple modes of action will help combat resistance and protect yield. For more information, visit GetMoreTime.com or contact your local Dow AgroSciences sales representative.

®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow. SureStart II is not registered for sale or use in all states. SureStart II is not available for sale, distribution or use in Nassau and Suffolk counties in the state of New York. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. Always read and follow label directions. ©2015 Dow AgroSciences LLC