As The Winds Blow

Kudzu in Louisiana is small but mighty. Compared to Alabama, Georgia, and Mis­sissippi, the Bayou state doesn’t have a lot of the pesky plant. But when Asian soybean rust gets into Louisiana kudzu, the implications go far beyond the state’s borders.

This is primarily because the wind patterns coming out of Louisiana travel up the Mississippi River Basin and the Ohio River Valley, moving along the way into the areas where much of the country’s soybeans are grown. Asian soybean rust loves to travel by air, often hitchhiking on raindrops — which is what happened late last season when rust scattered deeper into soybean strongholds than ever before.

So when soybean rust was spotted in a kudzu patch in south-central Louisiana on May 8 — a full 53 days earlier than at the same site in 2006 — retailers and growers in the nation’s midsection took notice.

“Just a few leaves were infected in a fairly compact area in New Iberia,” says Clayton Hollier, Lou­isiana State University (LSU) Ag­Center plant pathologist. A routine check of the area, an apartment complex drainage ditch covered with kudzu, resulted in the May 8 discovery.

Hollier and his LSU colleagues are very aware of the potential impact of any soybean rust found in Louisiana. “We feel a sense of responsibility for our own growers and those outside our state borders,” he says. “We know that what’s going on in Louisiana is of interest to them, so we will get the information out quickly. We want them to know that as soon as we know there’s rust, they will know so that they can make the very best decisions possible for their own situation.”

Overwintering Concerns

This is the second year straight that this particular kudzu patch was infected by Asian soybean rust. “It brings up another question: Did it overwinter there?” Hollier asks. Routine checks of the areas where rust developed in the state last year were conducted, along with some new areas. “We wanted to check for its survival and ability to move.”

The LSU AgCenter has just started greenhouse studies to see if soybean rust is overwintering on stem tissue. “All the leaves were killed back by frost this winter, so it could be lower in the canopy,” he says.

The study results could help Lou­isiana soybean growers adjust their agronomic practices to catch rust as early as possible. The preventive fungicide applications that the region’s growers have historically used for other diseases have proven successful against rust thus far. “Last year, growers added product to their fungicide application to control rust and actually controlled it very well,” he says. “While it was widespread, we didn’t get the explosion that would have happened without the applications.”

According to Hollier, soybean yield loss in the areas where rust occurred was around 1%. “Without the preventative fungicide applications, it probably would have been in the 7% to 8% range,” he says.

Domark, Stratego OK’d

The list of Asian soybean rust- approved fungicides keeps getting longer. EPA has awarded full Section 3 approval to Stratego from Bayer CropScience and Domark 230, manufactured by Isagro and distributed by Valent U.S.A. Corp.

Both had previously received Sec­tion 18 Emergency Exemptions for use in soybeans for Asian soybean rust. They also are approved for a number of other soybean diseases.

Stratego can be used as part of Bayer CropScience’s Plant Health program to improve overall crop health and increase yield potential. A premix of strobilurin and triazole chemistries, its two different modes of action inhibit spore germination on the plant surface and fungal growth within plant tissues.

Domark 230, which contains the active ingredient tetraconazole, can be used as both a preventative and curative treatment for soybean diseases, protecting existing and new growth.

It will help growers achieve Maxi­mum Harvest Value, a combination of disease protection, ease of harvest, and crop safety to maximize yields, according to Valent.

Leave a Reply

Fungicides Stories

Syngenta Sign
FungicidesSyngenta’s Newest Fungicide Receives EPA Approval
September 1, 2015
Syngenta announced today that its newest succinate dehydrogenase inhibitor (SDHI) fungicide – Solatenol – has received registration from EPA and Read More
FungicidesBASF Registers New Seed Treatment Fungicide
August 6, 2015
Obvius fungicide seed treatment from BASF received full EPA registration for use on pulse, podded vegetables and canola. State registrations are Read More
FungicidesReport: Sudden Death Syndrome Symptoms Appearing In Soybeans
July 30, 2015
Last week, symptoms of sudden death syndrome (SDS) began to appear in April 15-planted soybeans at the University of Illinois’s Read More
FungicidesHelena To Distribute Unique Summit Agro Fungicide
June 29, 2015
RANMAN 400 SC fungicide, the only fungicide with a FRAC group 21 designation, is now part of the innovative Summit Read More
Top 100 Articles
Crop InputsLand ‘O Lakes, United Suppliers Finalize Merger
August 24, 2015
According to a press release on August 24, owners of United Suppliers, Inc. and members of Land O’Lakes, Inc. “have Read More
West Central Cooperative, Jefferson, IA
CropLife 100Iowa Cooperatives To Explore Unification
August 19, 2015
The boards of directors at two of Iowa’s leading farmer-owned cooperatives yesterday signed a letter of intent to study the Read More
CropLife 100Southern States Coop Hosting Drone Flight This Friday
August 3, 2015
Southern States Cooperative — No. 9 on the CropLife 100 — is hosting an FAA-approved drone demonstration at Grandview Farms Read More
CropLife 100Aligned Ag Distributors Adds Four New Owners
July 30, 2015
Aligned Ag Distributors LLC has announced the addition of four new customer/owners to Franklin Holding Co. LLC. They are: The Read More
CropLife 100Pinnacle Purchases California-Based Specialty Crops Retailer
July 20, 2015
Pinnacle Agriculture Holdings has successfully acquired California-based NH3 Service Co.  Operating as part of Pinnacle’s Performance Agriculture brand, the new locations Read More
Asmus Farm Supply liquid fertilizer facility features 20,000 square feet
CropLife 100Slideshow: Asmus Farm Supply Shows Off Its New Liquid Fertilizer Facility
July 15, 2015
Asmus Farm Supply, Rake, IA, recently added a new liquid fertilizer facility to its company operations. The new liquid fertilizer Read More
Latest News
ManagementReviewing MAGIE 2015
September 2, 2015
CropLife Editor Eric Sfiligoj talks what he saw at the recent Midwest AG Industries Exposition (MAGIE) show. Read More
Melissa Olds Dow AgroSciences
Crop InputsDow AgroSciences: Highlighting The Past, Present & …
September 2, 2015
In general, media events held by large agricultural suppliers tend to focus primarily on what plans the company has in Read More
Mobile tablet
OpinionTaking Data Head On
September 2, 2015
As you read this column, I’m hoping that if you picked up the phone and gave me a call, you’d Read More
Young soybean field
Industry NewsArysta LifeScience Announces New Business Unit Head For…
September 1, 2015
Arysta LifeScience North America announces the addition of Rico Christensen, Business Unit Head, North America. Christensen will have responsibility for Read More
Wilbur Ellis Pink Soybean Seed Treatment
Crop InputsWilbur-Ellis Goes Pink With Soybean Seed Treatments For…
September 1, 2015
This past year, proceeds of pink-dyed soybeans treated and sold to Wilbur-Ellis seed customers in Chester, SD, went to two Read More
SprayersNORAC Active Wing Roll Slated For More Sprayers
September 1, 2015
NORAC Systems, a member of the Topcon Positioning Group, announces the release of Active Wing Roll for RoGator, Apache, New Read More
Syngenta Sign
FungicidesSyngenta’s Newest Fungicide Receives EPA Approval
September 1, 2015
Syngenta announced today that its newest succinate dehydrogenase inhibitor (SDHI) fungicide – Solatenol – has received registration from EPA and Read More
Flooded corn in Indiana
Crop InputsDelaying The Fertilizer Decision
September 1, 2015
Comments gathered from several retailers recently evidenced a classic good-news-bad-news scenario. Good news is prices and supplies of nitrogen, phosphate, Read More
StewardshipBee Buffer Strip Initiative Seeks 100 Ohio Farmers
August 31, 2015
The U.S. Bee Buffer Project, an initiative of the Pollinator Partnership (P2), Burt’s Bees and The Burt’s Bees Greater Good Read More
2015 ShowStopper Award, MAGIE
EquipmentA ShowStopper From Case IH: The Patriot 2250
August 31, 2015
For nine years now, visitors to the yearly Midwest AG Industries Exposition (MAGIE) show have been tasked with not only Read More
Crop InputsMonsanto, FMC Expand Roundup Ready PLUS Platform
August 31, 2015
FMC Corp. and Monsanto Co. announced today an expanded agreement to continue their participation in the Roundup Ready PLUS Crop Read More
Deere Nutrient Applicator
Eric SfiligojThe Good & Bad News From MAGIE
August 31, 2015
As I write this column, I’ve just returned from the annual Midwest AG Industries (MAGIE) trade show in Bloomington, IL. Read More
CPS Morenci receiving its 4R certification
StewardshipCPS Morenci Becomes First Michigan Facility Certified I…
August 31, 2015
The 4R Nutrient Stewardship Certification Program has announced that Crop Production Services, Inc.’s facility located in Morenci, MI, has been Read More
EquipmentDeere Announces Soucy Track Distribution Alliance
August 28, 2015
John Deere announces an alliance with Soucy Track to sell and distribute products through the John Deere dealer channel. “This Read More
FertilizerFall-Applied Phosphorus: A Rooted Investment
August 28, 2015
As commodity prices decrease and input prices continue to rise, farmers are seeking more efficient strategies for meeting a high Read More
Monsanto Sign
Crop InputsWhat’s Next For Monsanto, Syngenta?
August 28, 2015
After dropping its $47 billion bid to take over Swiss agribusiness firm Syngenta, Monsanto may be turning its focus to Read More
Golden Harvest Corn stalks
Crop InputsMonsanto: Syngenta Not The Only Horse In Crop Protectio…
August 28, 2015
Monsanto Co, having ditched an audacious $46 billion (£30 billion) offer for Syngenta AG, may downshift to a humbler strategy Read More
ManagementConsolidation hits and a miss; And a look at China’s ch…
August 28, 2015
As Monsanto suspends its pursuit of Syngenta, consolidation news at the retail and distribution level heats up. CropLife magazine’s Executive Read More