Finding The Right Fungicide

Retailers have heard this question from growers as often as the Extension experts: “What is the best and cheapest fungicide to use if I get Asian soybean rust in my soybean fields?”

This critical question is the basis for a three-state research project, “Standardized Foliar Fungicide Test For Control Of Asian Soybean Rust.” Some of the key questions the researchers hope to answer include when is the best time to apply soybean rust-labeled fungicides to soybeans? How much product will remain active if it’s applied early? If it’s sprayed after soybean rust arrives, how effective are the fungicide’s curative qualities?

The cooperative effort is led by project leader Melvin Newman, Extension plant pathologist at The University of Tennessee and a member of the National Soybean Rust Committee.

Safety First

CropLife® mentioned these key fungicide storage safety points a year ago, but they bear repeating as another off-season approaches. Dr. Anne Dorrance, The Ohio State University Extension plant pathologist, offers these year-round recommendations on storing Asian soybean rust-approved fungicides. This list applies to both retailers and their grower-customers.

■ Do not store in areas with a drain.
■ Avoid numerous freeze/thaw cycles, and don’t let temperatures fall below freezing or above 100° Fahrenheit. Keep the product ventilated, dry, and out of direct sunlight.
■ Keep an up-to-date inventory for buying decisions, emergencies, and to track product age. “Use older or opened products first,” says Dorrance. “Section 18 fungicides are good for 3 years.”
■ Keep ag chemical storage areas placarded and locked.
■ Never store ag chemicals with feed and seed.
■ Read the label for special storage requirements.

The Southern Soybean Promotion Board directors approached Newman at the National Soybean Rust Symposium last fall with grower check-off funding in hand. But here’s the rub: So far, Asian soybean rust had not reached Tennessee soybean sentinel plots or commercial fields, meaning Newman had the funding but not the appropriate field set-up. (As of presstime, Tennessee has still been unaffected by soybean rust this season, too.)

Newman decided to pull together researchers in points south who were already dealing with the actual disease: James Marois, University of Florida; Bob Kemerait, University of Georgia; and Ed Sikora, Auburn University in Alabama. “To get the ball rolling, I looked for the states with last year’s most reliable rust infestations,” he explains. “We just know they’re going to have rust, and have it early enough to check the efficacy of the fungicides.”

The study — which focuses on optimizing fungicide timing and use — is independent of any bias from fungicide manufacturers. The group agreed on 13 to 14 requirements to ensure data consistency, including using a randomized complete block design when planting the fields and a core of 12 fungicide treatments.

The View From Georgia

Georgia’s Kemerait chose project sites in Attapulgus, Moultrie, and Tifton. The pattern of two 40-foot untreated/2 treated rows are replicated six to seven times. “You really get a good amount of disease, so the untreated rows stand out,” he says. Rust arrived late this season, which Kemerait attributes to the dry weather.

The plots have been sprayed with a variety of triazoles, strobilurins, triazole/strobilurin combinations, and chlorothalonils.

With harvest just around the corner, the results of the disease and yield ratings will be in soon. “This is primarily a timing experiment,” says Kemerait. “When is it too early to spray and when is it too late?”

For more on this project and our Asian soybean rust research series, visit www.rustready.com

Leave a Reply

Featured Stories

StewardshipThree Ohio Ag Retailers Honored With 4R Certification
October 13, 2014
The 4R Nutrient Stewardship Certification Program has announced its first three agriculture nutrient service providers to achieve certified status. Read More
FertilizerJ. R. Simplot To Build New Ammonia Plant In Rock Springs, WY
October 7, 2014
The new plant will supply both the Rock Springs, WY, and Pocatello, ID, phosphate fertilizer production locations while having the capacity to meet the company’s next phase of anticipated phosphate expansion plans at Rock Springs. Read More
CropLife 100Hintzsche Fertilizer To Sell Business To Helena
October 2, 2014
Hintzsche Fertilizer of Maple Park, IL, has agreed to sell its business to Helena Chemical Co., Collierville, TN, according to a report on ElburnHerald.com. Read More
CropLife 100South Dakota Wheat Growers To Add Grain-Agronomy Facility
September 26, 2014
Planned to be constructed in Kennebec, the facility will be located along the soon-to-be rehabilitated line of heavy-rail service from Chamberlain to Presho. Read More

Trending Articles

Matt Hopkins15 Best New Agriculture Apps Worth Downloading In 2014
December 16, 2013
These latest agriculture apps are sure to help ag professionals do their jobs more efficiently in 2014 and beyond. Read More
Seed/BiotechMonsanto Offers New Support For Ferguson, Area Communities
October 8, 2014
Monsanto Co. has committed $1 million in new support for several collaborative efforts in Ferguson, MO, and surrounding communities in North St. Louis County. Read More
Seed/BiotechUnapproved Genetically Modified Wheat Found In Montana
October 3, 2014
USDA reports that one year after discovery of Monsanto's unapproved wheat in a single Oregon field disrupted U.S. wheat export sales, the GMO wheat has again been found in Montana. Read More
Equipment2014 Product Of The Year Voting
September 19, 2014
Many new products were introduced to the ag retail marketplace this year. From this group, CropLife IRON and its consulting partners have selected five finalists for the Product of the Year award. Please cast your vote today to help us determine the winner. Read More
FertilizerFall Fertility 2014: Forecasting Fertilizer Use
September 7, 2014
Great crops this year have tapped the soil, and fall work is definitely called for, but how challenging will that get? Read More
CropLife 100CHS To Build $3 Billion Fertilizer Plant In North Dakota
September 5, 2014
The fertilizer plant in Spiritwood will be the single largest investment in CHS history, as well as the single largest private investment project ever undertaken in North Dakota. Read More

Latest News

Seed/BiotechEPA Approves Dow’s Enlist Duo Herbicide
October 15, 2014
The Enlist Weed Control System, breakthrough technology to fight resistant and tough weeds, has received the long-awaited green light from federal regulatory authorities. Read More
MicronutrientsGypsum On Farms Could Help Keep Water Clean, Not Green
October 14, 2014
Gypsum, which has roots in the past as a farm soil treatment, also may have a bright future, and not just as a booster of crops but also as a protector of water. Read More
Photo credit: The United Soybean Board/The Soybean Checkoff.
Crop InputsVerdesian Grows Sales Staff
October 14, 2014
The new account managers will drive sales growth and support relationships with key customers in the plant nutrition and seed treatment and inoculants product categories. Read More
WebinarsUpcoming Webinars
October 14, 2014
Register for one of our upcoming Webinars or access our archive of past Webinars to view recordings of presentations that may be of interest to you. Read More
CropLife 100The Andersons Purchases Six Grain Elevators, Four Agron…
October 14, 2014
The Andersons has acquired Auburn Bean and Grain of Auburn, MI, which will increase the storage capacity of its Grain Group by about 13%. Read More
StewardshipThree Ohio Ag Retailers Honored With 4R Certification
October 13, 2014
The 4R Nutrient Stewardship Certification Program has announced its first three agriculture nutrient service providers to achieve certified status. Read More
Eric SfiligojEntering Agriculture’s New Phase
October 13, 2014
The market’s giddy ride the past few years might be coming to an end in 2015, warns one industry insider. Read More
Eric SfiligojWar And Green Peace
October 11, 2014
A one-time member of Green Peace recently explained why he left the organization after 15 years. Read More
StewardshipCover Crops Add To Farm Sustainability
October 10, 2014
Farmers nationwide find cover crops to be a tool that helps groundwater, prevents erosion, builds soil quality and complements existing best management practices. Read More
EquipmentMeeting Changing Liquid Storage Needs
October 10, 2014
Tank and containment choices are expanding with shifts in farming practices and the economy. Read More
StewardshipEDF Launches Initiative To Reduce Fertilizer Pollution …
October 9, 2014
The effort will engage farmers and businesses throughout the supply chain to transform the way fertilizer-dependent grain crops are grown and sourced. Read More
ManagementMACA 2014: The State Of The Agricultural Industry, And …
October 9, 2014
The trade association’s annual gathering featured speakers from across agriculture and beyond. Read More
FertilizerASA: Drainage Tiles A Big Part Of Phosphorus Problem
October 8, 2014
A pair of studies published in the Journal of Environmental Quality today indicate that the buried network of drainage pipes known as the tile system can carry away as much phosphorus as surface runoff. Read More
FertilizerCompass Minerals Debuts Phosphorus Blend For 2015
October 8, 2014
The makers of Wolf Trax DDP Nutrients designed Nu-Trax P+ with the CropStart Nutrient Package, a blend of phosphorus (25%), zinc (20%), manganese (5%) and nitrogen (4%). Read More
ManagementIndiana Certified Crop Advisor Of The Year Nominations …
October 8, 2014
Indiana Farm Bureau and the Indiana Certified Crop Adviser Program are seeking nominations for the Indiana Certified Crop Adviser of the Year Award. Read More
Seed/BiotechMonsanto Offers New Support For Ferguson, Area Communit…
October 8, 2014
Monsanto Co. has committed $1 million in new support for several collaborative efforts in Ferguson, MO, and surrounding communities in North St. Louis County. Read More
Precision AgGoogle Glass: New Tool For Ag
October 8, 2014
New wearable smart technologies such as Google Glass show potential to greatly impact how we accomplish the business of feeding the world. Read More
FertilizerJ. R. Simplot To Build New Ammonia Plant In Rock Spring…
October 7, 2014
The new plant will supply both the Rock Springs, WY, and Pocatello, ID, phosphate fertilizer production locations while having the capacity to meet the company’s next phase of anticipated phosphate expansion plans at Rock Springs. Read More