Late Planting Impact On Weed Control

Ohio crop growers faced numerous challenges planting corn and soybeans this spring, and with the crop progressing through mid-July, they now face an interesting weed control scenario, as well.

“The late planting presents challenges and makes weed control easier at the same time,” said Mark Loux, Ohio State Extension weed specialist. The unusual planting season resulted in an abnormal timeline for producers’ weed control systems.

Because farmers couldn’t get into fields as early as they would have liked to this spring, Loux said farmers saw significant weed pressure throughout June in both no-till and conventional tillage fields. In addition, some producers were not aggressive enough with their application of a burndown herbicide in no-till, and some weeds simply survived tillage this year.

Perhaps the biggest challenge to producers’ weed control strategies boiled down to simple logistics.

“When we’re planting that late, everyone gets jammed up and some missed applications,” Loux said. “So, we have some fields that are really clean and some that are really messy.”

In his travels around the state Loux said he was concerned that some producers had not yet sprayed a post-emergence herbicide. There is no point in waiting, he said, because establishing control of weeds as early as possible is critical in late planting situations.

Aside from the obvious challenges, a potentially shortened growing season does yield some positive impact on weed control.

“The good news in a late planting situation is you don’t have as many weeks of weeds, and the crop grows faster,” Loux said. “If you start weed-free and make that work, you can spray your post-emerge a little earlier and it makes control a little easier if you get the right start.”

He continues to see glyphosate-resistant marestail as the key weed problem in the state, and 2011 may prove to be an enlightening year for some farmers because of the late planting.

While traditionally found in the southwestern portions of Ohio, Loux said resistant populations of marestail are now found throughout the state.

“We have a lot of marestail this season,” he said. “We can’t control it post-emergence very well. We have some problems in beans because farmers didn’t pick the right combination of burndown herbicides, or they didn’t want to spend enough money.”

He also noted that in some cases, control efforts proved challenging because burndown application timing was much later than usual this season, and accordingly some products didn’t work as well as in a typical year.

Since control efforts were hampered in some areas, Loux is hopeful affected producers will better understand how significantly their fields are infested with resistant weed populations and plan accordingly for next year.

“Because we have up to two types of resistance in some marestail populations, the biggest thing is to realize you have a problem,” he said. “More of it is going to go to seed this year than last year. When you plan for next year, consider a fall application of herbicide, and be aggressive enough to control it next year.”

The basic control recommendation in no-till soybeans, where Loux sees the most weed control issues, is to use a comprehensive spring burndown herbicide protocol while using the correct rate of a residual control product at the same time. Beyond that, farmers can modify a post-emergence application of glyphosate as needed.

He said some plans do include a fall application for marestail or other problem weeds, as well.

“For historically resistant fields, farmers can consider some Liberty Link soybeans to break up the use of glyphosate and get those issues under control,” Loux advised. “Some farmers aren’t willing to do that, though, because the variety selection there isn’t as diverse.”

(Source: Ohio Ag Connection)

 

Leave a Reply

Herbicides Stories

Corn Field
HerbicidesNew Wilbur‐Ellis Herbicide Targets Volunteer Corn
April 28, 2016
Wilbur‐Ellis Co., a recognized leader in marketing and distribution of crop protection products, as well as precision agriculture technology, has Read More
HerbicidesHELM AGRO Launches New HELM Sulfentrazone 4F Herbicide
April 26, 2016
HELM AGRO US, Inc. has announced the federal Section 3 registration of its new HELM Sulfentrazone 4F herbicide. Classified as a Read More
HerbicidesHerbicide Resistance In Waterhemp Continues To Grow
April 22, 2016
Twenty-five years ago, waterhemp was virtually unknown to Illinois farmers. Today, the broadleaf weed blankets corn and soybean fields across Read More
Soybean Field
HerbicidesHELM AGRO US Unveils New Sheridan 25 WG Herbicide
April 22, 2016
HELM AGRO US, Inc. has announced the federal Section 3 registration of its new Sheridan 25 WG herbicide for selective Read More
Trending Articles
Eric SfiligojMissing The Family Ties In Agriculture
April 25, 2016
By its nature, the agriculture market is cyclical. Up and down cycles come and go with a regular pattern. For Read More
HerbicidesHerbicide Resistance In Waterhemp Continues To Grow
April 22, 2016
Twenty-five years ago, waterhemp was virtually unknown to Illinois farmers. Today, the broadleaf weed blankets corn and soybean fields across Read More
Eric SfiligojBiotech Corn Drop More Economics Vs. Consumer Rejection
April 18, 2016
Since their introduction into the agricultural marketplace, biotech crops has steadily grown in acreage in the countries of the world Read More
Crop InputsBayer: 5 Reasons We Disagree With Maryland Neonic Ban
April 12, 2016
We’re disappointed that the Maryland legislature chose not to stand up for sound science and the rights of Maryland’s homeowners Read More
Corn
OpinionChallenging Global Economic Conditions Putting More Heat On U.S. Ag Retailers
April 7, 2016
There it is. That vague, slightly sickening feeling in the pit of my stomach. Things are getting weird out there. Read More
ScoutPro iPad
Precision AgWhat’s Trending In Soil Testing And Scouting
April 6, 2016
Keeping up on soil testing and scouting, especially following unusual weather conditions, can play a role in maximizing yields. Soil Read More
Latest News
BAICOR
CropLife 100BRANDT Acquires Utah Specialty Fertilizer Company
April 28, 2016
BRANDT, a leading agriculture retailer and manufacturer of specialty ag products, has acquired a majority interest in BAICOR, L.C. BAICOR, Read More
Soybean field
Industry NewsVerdesian Life Sciences Adds Vice President Of Business…
April 28, 2016
Verdesian Life Sciences has announced the addition of Marc Treurniet to the plant health and nutrition company’s management team. Treurniet Read More
ManagementBiotech Crops Developments and Millennials
April 28, 2016
Editors Eric Sfiligoj and Paul Schrimpf talk about the latest activities in biotech crops and a major shift in the Read More
Industry NewsNachurs-Alpine, Pathway Biologic Extend Marketing Agree…
April 28, 2016
Nachurs-Alpine Solutions (Marion, OH) and Pathway Biologic (Plant City, FL) announce an extension to their exclusive marketing agreement specific to Read More
MicronutrientsCharah Add Three Warehouses For SUL4R-PLUS Fertilizer
April 28, 2016
Charah, Inc., a total solutions company providing unparalleled service and innovation for the coal-fired power generation industry, announced today that Read More
Spenser Forgey, Yahama Fortix
FungicidesIndiana Farmer Wins Arysta LifeScience FORTIX Fungicide…
April 28, 2016
Arysta LifeScience North America recently presented Spenser Forgey, a grower from Young America, IN, with a new 2016 Yamaha Grizzly Read More
Corn Field
HerbicidesNew Wilbur‐Ellis Herbicide Targets Volunteer Corn
April 28, 2016
Wilbur‐Ellis Co., a recognized leader in marketing and distribution of crop protection products, as well as precision agriculture technology, has Read More
StewardshipNRCS To Help Farmers Measure Conservation Impacts On Wa…
April 27, 2016
The USDA has announced the availability of $2 million to help farmers install edge-of-field stations that monitor water quality as Read More
Planter in Iowa
EquipmentTop 10 Twitter Pics For #Plant16
April 27, 2016
Despite some wet weather in parts of the Midwest, growers and ag retailers are working feverishly to plant this year’s Read More
HerbicidesHELM AGRO Launches New HELM Sulfentrazone 4F Herbicide
April 26, 2016
HELM AGRO US, Inc. has announced the federal Section 3 registration of its new HELM Sulfentrazone 4F herbicide. Classified as a Read More
Valley Irrigation Valley 8000 series on corn
EquipmentValley Irrigation Receives Environmental Stewardship Ho…
April 26, 2016
Valley Irrigation has been recognized as a Groundwater Guardian Green Site by the Groundwater Foundation. The Groundwater Guardian Green Site Read More
Eric SfiligojMissing The Family Ties In Agriculture
April 25, 2016
By its nature, the agriculture market is cyclical. Up and down cycles come and go with a regular pattern. For Read More
HerbicidesHerbicide Resistance In Waterhemp Continues To Grow
April 22, 2016
Twenty-five years ago, waterhemp was virtually unknown to Illinois farmers. Today, the broadleaf weed blankets corn and soybean fields across Read More
ManagementIllinois Leads The Nation In 4R Certified Nutrient Mana…
April 22, 2016
As Illinois agriculture works to educate farmers about minimizing environmental impact and optimizing the use of ag nutrients, Illinois now leads Read More
Social media
Matt Hopkins7 Social Media Trends Shaping Ag Retail In 2016
April 22, 2016
After writing my last column on why social media is a must for ag retailers, I heard from several readers Read More
Industry NewsArysta LifeScience Adds Corey Abels To Midwest Sales Te…
April 22, 2016
Arysta LifeScience North America recently announced the addition of Corey Abels as Territory Sales Manager for the Midwest region. In Read More
Soybean Field
HerbicidesHELM AGRO US Unveils New Sheridan 25 WG Herbicide
April 22, 2016
HELM AGRO US, Inc. has announced the federal Section 3 registration of its new Sheridan 25 WG herbicide for selective Read More
ManagementCentennial’s Jim Fargo Talks Ag Retail
April 21, 2016
Special guest Jim Fargo discusses challenges facing this CropLife 100 retailer. Read More