Lack Of Herbicide Action Commercialization A Challenge

No new herbicide active ingredients are currently available for the 2011 growing season, and University of Illinois Extension weed specialist Aaron Hager said he expects this “drought” of no commercialization of herbicides with unique sites of action to continue into the foreseeable future.

“With no new sites of herbicide action being commercialized, it’s likely that we will see increased challenges caused by herbicide-resistant weed biotypes and populations this year,” Hager said. “However, making accurate predictions about the types of challenges weeds might present during the 2011 growing season is a bit tenuous.”

Last fall’s corn harvest was much more timely and efficient than what many farmers experienced in 2009, Hager said. One consequence of 2009’s challenging harvest was the abundance of volunteer corn in 2010. Densities of volunteer corn were quite impressive and required careful attention when selecting the appropriate control option.

“We expect that volunteer corn will, once again, be a weed management consideration in 2011,” he added. “But we expect volunteer corn densities to be much lower than what we experienced in 2010.”

Hager believes more acres of the 2011 soybean crop will be treated with a soil-residual herbicide than were treated in 2010. This will help alleviate many challenges posed by total postemergence weed control systems, including the unpredictability of being able to make timely POST herbicide applications before weed interference reduces crop yield potential.

“The high market prices for soybean, coupled with the increasing occurrence of herbicide-resistant weeds, suggest that soil-residual herbicides are likely to become staples of more integrated weed management systems,” he said. “Keep in mind, however, that simply applying the herbicide to the soil doesn’t always guarantee its optimal performance.”

Herbicide-resistant weeds are poised to become an even larger weed management challenge this year. Results of recent surveys indicate that glyphosate- and PPO-resistant waterhemp populations are present in many Illinois counties, and that glyphosate-resistant horseweed/marestail is very common across most of the southern third of the state.

In 2010, Hager documented a McLean County waterhemp population that was resistant to HPPD inhibitors, increasing the number to five herbicide site-of-action families to which Illinois waterhemp has evolved resistance.

“We expect that waterhemp biotypes resistant to multiple herbicide families will become even more common,” he said. “There are also concerns with populations of giant ragweed and palmer amaranth in southern Illinois that have not been controlled by glyphosate.”

(Source: Illinois Ag Connection)

Leave a Reply

Herbicides Stories

Crop InputsMonsanto: Illegal, Improper Use at Root of Drift Problems
July 14, 2017
Monsanto isn’t backing down from the position that its tool — the Roundup Ready Xtend dicamba-tolerant system for soybeans and Read More
Soybean Closeup
Crop InputsMissouri Lifts Dicamba Ban, Issues Stricter Application Parameters
July 14, 2017
The Missouri Department of Agriculture has lifted its barely week-old ban on new dicamba technologies, which have been at the Read More
Crop InputsAs Drift Complaints Snowball, Tennessee Sets New Dicamba Rules
July 13, 2017
Tennessee is the latest state to issue restrictions on dicamba, following snowballing complaints about the herbicide drifting onto neighboring farms Read More
Crop InputsBASF Responds to Dicamba Restrictions
July 12, 2017
BASF published the following statement on July 10 in response to the dicamba bans set in Arkansas and Missouri: By Read More
Trending Articles
Stewardship‘Gonna Fly Now’ with Environmental Respect
July 20, 2017
One of the most memorable moments in movie history occurred in the Academy Award-winning 1976 film “Rocky.” Haven gotten his Read More
StewardshipEnvironmental Respect 2017 Kicks Off Enjoying an American Pastime
July 18, 2017
Following months of planning and scheduling, the 2017 Environmental Respect Awards (ERA) celebration kicked off in fine fashion as more Read More
Soybean Closeup
Crop InputsMissouri Lifts Dicamba Ban, Issues Stricter Application Parameters
July 14, 2017
The Missouri Department of Agriculture has lifted its barely week-old ban on new dicamba technologies, which have been at the Read More
Crop InputsMonsanto Responds to Arkansas, Missouri Dicamba Bans
July 10, 2017
Monsanto, provider of the dicamba-tolerant Roundup Ready Xtend crop system for soybeans and cotton, issued the following statement on Friday, Read More
Retail FacilitiesPCS-Hammond Meets Fertilizer Storage Needs with New Dome Facility
July 8, 2017
The new barrel dome facility at the PCS-Hammond Regional Distribution Center in Hammond, IN, can hold more than 100,000 tons Read More
PrecisionAg Vision Conference
Precision AgPrecisionAg® Vision Conference: Focused on the Future
June 13, 2017
PrecisionAg® is pleased to announce the return of its PrecisionAg Vision Conference, October 10-12, 2017. Based on overwhelmingly positive response Read More
Latest News
ManagementCropLife Retail Week: Dicamba Update and InfoAg Preview
July 21, 2017
Editors Eric Sfiligoj and Paul Schrimpf discuss reports from the field and comments from Monsanto about dicamba drift this season, Read More
Stewardship‘Gonna Fly Now’ with Environmental Respect
July 20, 2017
One of the most memorable moments in movie history occurred in the Academy Award-winning 1976 film “Rocky.” Haven gotten his Read More
StewardshipEnvironmental Respect: Grand Grounds, Posters Parade
July 19, 2017
To celebrate their accomplishments in the area of environmental stewardship, award recipients at the 2017 Environmental Respect week spent much Read More
StewardshipHarden’s Message to ERA Winners: Do Tell Your Good Stor…
July 19, 2017
As the daughter of a peanut farmer, Krysta Harden, Chief Sustainability Officer for DuPont Crop Protection, understands the importance the Read More
StewardshipFarming Smarter Hinges on 4R Best Management Practices
July 18, 2017
Preserving water quality while feeding another 2 billion people by 2050 is the challenge facing North America’s farmers and its Read More
StewardshipEnvironmental Respect 2017 Kicks Off Enjoying an Americ…
July 18, 2017
Following months of planning and scheduling, the 2017 Environmental Respect Awards (ERA) celebration kicked off in fine fashion as more Read More
Soybean Field Sunset
OpinionPicking Partners in the Crop Protection Market
July 17, 2017
Agriculture is a market awash in highs, lows, and everything in between. This is certainly true in the world of Read More
TMX-2050-In-Cab-Display-Launch-Run-Screen
EquipmentGPS Auto Steer: Innovating in a Mature Market
July 17, 2017
In the world of Big IRON, GPS auto steer has closely mirrored the evolutionary path of consumer GPS Navigation systems Read More
MFA-Centralia-MO
Eric SfiligojThe Resilience of Ag Retailers
July 17, 2017
After covering the ag retail market for 17 years, I think one of the most impressive character traits I’ve seen Read More
SERA-meeting
Stewardship4R Event Explores How to Minimize Phosphorus Losses
July 17, 2017
This year the Southern Extension and Research Activity (SERA) – 17; will be meeting in Oregon, OH, from August 14-17. Read More
Students Soybean Field
StewardshipCCA 4R Study Guide Available
July 17, 2017
In June the International Plant Nutrition Institute (IPNI) released the Certified Crop Advisor (CCA) 4R Nutrient Management Specialist (4R NMS) Read More
Soil soybean closeup
FertilizerThe 4Rs and Potassium
July 17, 2017
Are we meeting crop K needs? Using the 4R nutrient stewardship approach of selecting the right source at the right Read More
Soil Young Corn
StewardshipTop 10 Themes from the 2017 4R Nutrient Stewardship Sum…
July 17, 2017
Preserving water quality while feeding another 2 billion people by 2050 is the challenge facing North America’s farmers and its Read More
Soybean Field Sunset
Crop InputsWhich is Better for Soybeans: Fall or Spring Applicatio…
July 17, 2017
There have been many questions about fall versus spring applications of phosphorus (P) and potassium (K) to soybeans, writes Dr. T. Read More
corn-potassium-deficiency-University-of-Minnesota-Extension
Crop InputsRecognizing Potassium Deficiency Symptoms in Crops
July 17, 2017
Some crops exhibit characteristic deficiency symptoms when adequate amounts of K are not available for growth and development, according to Read More
ManagementComplexity in Agriculture: The Rise (and Fall?) of Mons…
July 17, 2017
Sometimes it seems as if the ag world is changing so fast that we can barely keep up with it Read More
Crop InputsMonsanto: Illegal, Improper Use at Root of Drift Proble…
July 14, 2017
Monsanto isn’t backing down from the position that its tool — the Roundup Ready Xtend dicamba-tolerant system for soybeans and Read More
Soybean Closeup
Crop InputsMissouri Lifts Dicamba Ban, Issues Stricter Application…
July 14, 2017
The Missouri Department of Agriculture has lifted its barely week-old ban on new dicamba technologies, which have been at the Read More