Gemstar Insecticidal Virus Now Available To Control Corn Earworm In Brazil

Certis U.S.A. L.L.C. has launched the biopesticide Gemstar insecticidal virus in Brazil for the control of corn earworm (Helicoverpa armigera), a major pest of Brazil’s cotton and soybean crops. To introduce Gemstar to Brazil, Certis USA worked closely with its Brazilian development and distribution partners Bio Controle of Indaituba and Iharabras S/A Chemical Industries of Sorocaba.

Corn earworm is responsible for billions of dollars in losses last year to Brazil’s cotton and soybean crops. First identified in northeastern Brazil two years ago, corn earworm is now damaging cotton, soybeans, corn and bean crops in 10 states. This April the Brazilian state of Bahia declared a state of emergency, and the Brazilian government has granted emergency approval for the use of Gemstar to control corn earworm on cotton and soybean crops.

The active ingredient of Gemstar is a naturally occurring nucleopolyhedrovirus that infects corn earworm larvae. This virus is very host specific. It does not infect beneficial insects, fish, wildlife, livestock or humans and its use does not harm the environment. Corn earworm larvae feeding on a crop sprayed with Gemstar become infected by ingesting the virus particles deposited on the plant. An infected larva stops feeding as the virus replicates quickly within its body, destroying its internal organs. When it dies, its body disintegrates, releasing billions of new virus particles which may be ingested by other larvae of the same or later generations feeding in the same area. Gemstar has been successfully used by growers in several countries around the world to control corn earworms in corn, sorghum and vegetable crops, as well as cotton.

“The corn earworm populations in Brazil are unprecedented in Brazilian agriculture,” said Mike Dimock, Ph.D., Research Director of Certis USA. “The situation, however, is another excellent example about how biopesticides have become key tools in the management of today’s pest outbreaks. A biopesticide like Gemstar employs a novel mode of action that is highly effective in controlling corn earworm. Yet Gemstar can be used in organic farming, resistance management programs and, because it is residue exempt, Brazilian growers can export their Gemstar-treated crop virtually anywhere in the world.”

Leave a Reply

Insecticides Stories

Young corn plants in soil
Crop InputsFortenza Insecticide Seed Treatment Receives EPA Registration
May 25, 2017
Fortenza seed treatment insecticide from Syngenta has received registration approval from the U.S. EPA for use on corn and cotton Read More
Soybean aphid leaf
InsecticidesMulti-state Research Reveals IPM Best Option for Treatment of Soybean Aphids
May 17, 2017
About 89.5 million acres of soybeans will be planted across the U.S. in 2017 — a record high, according to Read More
Lygus pratensis
Crop InputsCalifornia Agriculture: What A Difference A Year Makes For Insect And Disease Control
April 3, 2017
“We finally got the rain,” David Haviland, Entomology and Pest Management Farm Advisor with the University of California Cooperative Extension, Read More
Golden Harvest Corn healthy leaves
Crop InputsFMC Emerges as DuPont Crop Protection Business Buyer, Becomes 5th Largest Ag Chemical Company
March 31, 2017
FMC Corp. and DuPont today announced the signing of a definitive agreement for FMC to acquire the portion of DuPont’s Read More
Trending Articles
Migrant farm workers
LegislationTrump: Immigration Crackdown Won’t Impact U.S. Agriculture
May 16, 2017
President Donald Trump said he would seek to keep his tough immigration enforcement policies from harming the U.S. farm industry Read More
AGCO Ratliff featured
Eric SfiligojRemembering Robert Ratliff
May 15, 2017
With all the fast-paced happenings in agriculture this spring, with multiple mergers in the works and planting season in full Read More
Case sprayer nozzle closeup
EquipmentSpray Application: A Nozzle Renaissance
May 2, 2017
If you had asked four-decade ag veteran Mark Bartel, President of Wilger Inc., just a few years ago what lay Read More
ManagementWashington Update, Dow-DuPont Earnings, and the Passing of an AGCO Legend
April 27, 2017
Editors Paul Schrimpf and Eric Sfiligoj talk about the latest Beltway news, crop protection company 1st quarter numbers, and the Read More
Crop InputsFlying Under the Radar No More, FMC Goes Big
April 13, 2017
Describing FMC as “under the radar,” admittedly, is probably a stretch. But in a snap of the fingers, FMC upped Read More
Young Corn Plants
Crop NutritionStill Hunting Yields
April 1, 2017
There’s no denying it — the agricultural marketplace today is undergoing a fundamental shift in fortunes. Not too many years Read More
Latest News
ManagementTrip Report, PSM R.I.P, and Ag’s Reaction to Federal Bu…
May 25, 2017
Editors Paul Schrimpf and Eric Sfiligoj talk about their recent travels, the end for Process Safety Management (PSM), and how Read More
Corn soil
LegislationARA Member Testifies Before Senate Ag Committee
May 25, 2017
Agricultural retailers stand on the front-lines of the American economy. As trusted advisors to America’s farmers, ag retailers are uniquely Read More
Young corn plants in soil
Crop InputsFortenza Insecticide Seed Treatment Receives EPA Regist…
May 25, 2017
Fortenza seed treatment insecticide from Syngenta has received registration approval from the U.S. EPA for use on corn and cotton Read More
ManagementFarm Market iD’s Agriculture Database Now Covers More T…
May 25, 2017
Farm Market iD, farmmarketid.com, has announced the release of its 2017 Annual Update of its farm and land database. The Read More
Food IT Fork-to-Farm
Precision AgThe Mixing Bowl Event Connects Technology, Food, and Ag…
May 24, 2017
For the fourth consecutive year, The Mixing Bowl presents FOOD IT, under the theme “Fork to Farm.” Action-oriented entrepreneurs, industry Read More
Photo credit: The United Soybean Board/The Soybean Checkoff.
Seed/BiotechKansas State University Researchers Find New Pathogens …
May 24, 2017
A single seed seems so simple. Put it in the ground, give it some care, and you’ve soon grown food. Read More
Soybean Field
HerbicidesNew Dicamba Herbicide Premix Coming Soon from Syngenta
May 24, 2017
Syngenta has announced the name of its new herbicide featuring the active ingredients of S-metolachlor and dicamba. Upon registration by Read More
Eric SfiligojMonsanto ‘Picks Its Battles’ by Nixing Deere Deal
May 23, 2017
Having been in the trade journalism game since the mid-1980s, I remember several watershed moments during my career. One of Read More
FungicidesSyngenta Launches New Seed Treatment Fungicide
May 22, 2017
Syngenta has announced the launch of PLENARIS seed treatment fungicide for the control of downy mildew in sunflower. PLENARIS contains Read More
Corn close up
Crop InputsMonsanto’s First HPPD Herbicide Garners EPA Appro…
May 19, 2017
Monsanto announced today that EPA has federally approved Harness MAX Herbicide, the first herbicide in the Monsanto portfolio to provide Read More
ManagementPrecision Planting Deal, China Developments, and Enviro…
May 18, 2017
Editors Eric Sfiligoj and Dan Jacobs discuss the latest news on John Deere’s now dead deal for Precision Planting, China’s Read More
Soybean aphid leaf
InsecticidesMulti-state Research Reveals IPM Best Option for Treatm…
May 17, 2017
About 89.5 million acres of soybeans will be planted across the U.S. in 2017 — a record high, according to Read More
GROWMARK-2017-Interns
CropLife 100GROWMARK Names 2017 Summer Interns
May 16, 2017
Forty-two college students are exploring agricultural career opportunities this summer as GROWMARK interns. They are working at FS member cooperatives Read More
Migrant farm workers
LegislationTrump: Immigration Crackdown Won’t Impact U.S. Ag…
May 16, 2017
President Donald Trump said he would seek to keep his tough immigration enforcement policies from harming the U.S. farm industry Read More
Flooded corn in Indiana
FertilizerBoth Wet and Dry Conditions Threaten Nitrogen Loss
May 15, 2017
The weather is notoriously unpredictable, leading to challenges for planting, harvesting and applying the nitrogen (N) your corn crop needs. Read More
farmer Kip Tom
Precision AgAg Tech: On the Cusp of Something Big?
May 15, 2017
The investment and ag-tech sectors’ continuing courtship of agriculture, smoldering for three or four years now, was well in evidence at Read More
AGCO Ratliff featured
Eric SfiligojRemembering Robert Ratliff
May 15, 2017
With all the fast-paced happenings in agriculture this spring, with multiple mergers in the works and planting season in full Read More
Greg Musson, Gar Tootelian
ManagementOpinion: Shaking Your Perspective in Ag Retail
May 12, 2017
Some of you I’m sure have encountered our recently retired salesman extraordinaire, Dan Bellanger. He worked in the industry for Read More