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
FungicidesSudden Death Syndrome, Brown Stem Rot Reported In Indiana Soybeans
September 3, 2014
Farmers and retailers should be watching for symptoms of these two diseases over the next few weeks as they are best managed through preventative methods. Read More
FungicidesResearchers Target Soybean Disease With Genetic Resistance Study
August 6, 2014
University of Illinois researchers will share new information on controlling sudden death syndrome through genetic resistance at this year's Agronomy Day. Read More
Soybean field
FungicidesValent Launches New Seed Protection Fungicide For Soybeans
July 16, 2014
The INTEGO SUITE System contains the first new, novel seed protection fungicide chemistry registered in 30 years by the EPA for protection against Pythium and Phytophthora. Read More
FungicidesNew Players May Make Pest Headlines In Corn, Soybean
April 1, 2014
The usual insects and diseases took a bit of a break in 2013, but other culprits surfaced — and could return. Read More
Top 100 Articles
CropLife 100Wheat Growers, North Central Farmers Elevator Pursue Merger
March 3, 2015
Two CropLife 100 retailers — South Dakota Wheat Growers (ranked No. 11) and North Central Farmers Elevator (No. 19) — have entered into a Letter of Intent to unify the two companies into a newly named cooperative. Read More
Growmark Group
CropLife 100GROWMARK In 2015: Back, To The Future
March 2, 2015
The nation’s third largest ag retail organization is simultaneously moving forward while remembering its past. Read More
CropLife 100Pinnacle Expands Sanders Brand In The South
February 27, 2015
Pinnacle has acquired Hopkins Seed and Chemical in Qulin, MO, which expands the company's Sanders brand to nine Southern states. Read More
CropLife 100Pinnacle Launches New Providence Agriculture Location In Indiana
February 27, 2015
Pinnacle Agriculture Holdings — ranked No. 6 on the CropLife 100 — has established a new retail location in New Castle, IN, which will operate as part of Pinnacle's Providence Agriculture brand. Read More
CropLife 100Cooperative CHS Returns $518 Million To Owners
February 23, 2015
The 2015 cash return to owners is based on CHS net income of $1.1 billion, the company's second highest on record. Read More
corn field
CropLife 100The Andersons’ Humic DG Now Available In Canada
February 13, 2015
The Andersons, Inc. Turf & Specialty Group has announced its Humic DG product is now available to customers in the Canadian turf, agriculture and horticulture markets. Read More
Latest News
CropLife 100Wheat Growers, North Central Farmers Elevator Pursue Me…
March 3, 2015
Two CropLife 100 retailers — South Dakota Wheat Growers (ranked No. 11) and North Central Farmers Elevator (No. 19) — have entered into a Letter of Intent to unify the two companies into a newly named cooperative. Read More
Equipment10 Tips for Spring Planter Preparation
March 3, 2015
Kinze Manufacturing offers advice on how to ensure your planter is ready before you hit the field. Read More
Industry NewsOABA 2015 LAUNCH Program Recognizes 20 New Graduates
March 3, 2015
Twenty Ohio agribusiness leaders are being recognized as the latest graduates of Ohio AgriBusiness Association’s LAUNCH program. Read More
EquipmentNew AGCO Website Helps Customers Shop For Certified Pre…
March 3, 2015
RoGator sprayers are among the wide range of CPO equipment available through AGCO's site. Read More
Enlist spray Demo
HerbicidesGuiding New Herbicide Systems’ Launches
March 3, 2015
Under careful watch, the new 2,4-D- and dicamba-tolerant crops hit more acres this season. Read More
Eric SfiligojCommodity Classic 2015: Playing The Waiting Game
March 2, 2015
There was plenty of future-talk at this year’s event as companies (and growers) are largely in a holding pattern of sorts. Read More
Industry NewsHighway Equipment Appoints New Director Of Business Dev…
March 2, 2015
Cory Venable, who joined Highway Equipment Company (HECO) in 2013 as OEM Account Manager, has been promoted to Director of Business Development. Read More
Prairieland FS employees
Eric SfiligojWorkforce Worries
March 2, 2015
Finding good employees almost always ranks as the No. 1 or No. 2 problem for ag retailers in our annual CropLife 100 survey. Read More
Growmark Group
CropLife 100GROWMARK In 2015: Back, To The Future
March 2, 2015
The nation’s third largest ag retail organization is simultaneously moving forward while remembering its past. Read More
CropLife 100Pinnacle Expands Sanders Brand In The South
February 27, 2015
Pinnacle has acquired Hopkins Seed and Chemical in Qulin, MO, which expands the company's Sanders brand to nine Southern states. Read More
CropLife 100Pinnacle Launches New Providence Agriculture Location I…
February 27, 2015
Pinnacle Agriculture Holdings — ranked No. 6 on the CropLife 100 — has established a new retail location in New Castle, IN, which will operate as part of Pinnacle's Providence Agriculture brand. Read More
2,4-D Celebrates 70 Years; GROWMARK Uses Super Bowl Ad To Share Positive Message
Management2,4-D Celebrates 70 Years; GROWMARK Uses Super Bowl Ad …
February 27, 2015
Jim Gray, executive director of the 2,4-D Research Task Force, lays out planned activities to mark the chemistry’s 70th anniversary. Read More
HerbicidesUniversity Of Arkansas Flag The Technology Program Adds…
February 27, 2015
Started in 2010, the Flag the Technology program provides a visual reference for applicators to distinguish between fields planted with different herbicide-tolerant trait technologies. Read More
Luckey Farmers, Inc.’s Berkey Farm Center
Industry NewsLuckey Farmers’ Berkey Branch Certified In 4R Nut…
February 26, 2015
The 4R Nutrient Stewardship Certification Program has announced Luckey Farmers Inc.’s Berkey Farm Center in northwest Ohio has been added to its growing list of nutrient service providers to achieve certified status. Read More
Crop InputsWinField Unveiling NutriVision Technology, Ascend Dry F…
February 24, 2015
New for 2015 are NutriVision Technology, a unique tool for monitoring in-season plant nutrient availability, and Ascend WSG plant growth regulator, a new dry formulation of Ascend plant growth regulator. Read More
FertilizerNew Formulation Of NutriSphere-N Protects High Volume U…
February 24, 2015
Verdesian Life Sciences is launching NutriSphere-N HVTM, a new polymer formulation of the proven NutriSphere-N Nitrogen Fertilizer Manager that protects high-volume applications of UAN. Read More
EquipmentIowa Ag Secretary Northey Names Hagie Water Quality Lea…
February 24, 2015
Iowa Secretary of Agriculture Bill Northey has named Hagie Mfg. as a recipient of the Secretary’s Water Quality Initiative (WQI) Leader Award. Read More
FungicidesEvito Fungicide Gives Canadian Wheat Growers New Diseas…
February 24, 2015
EVITO fungicide from Arysta LifeScience North America gives Canadian wheat and barley growers a new option for disease control. Read More