EPA Removes Bee Toxicity Warning From Grandevo

Marrone Grandevo logo

Marrone Bio Innovations, Inc. (MBI), has received EPA approval to delete the bee toxicity warning statement from its Grandevo Bioinsecticide label following a review. The removal of the toxicity statement is supported by third-party field evaluations that show Grandevo has no increased mortality or detrimental effects to honeybees.

The study was conducted in central North Carolina during the summer of 2012. The month-long hive study compared the mortality rates of Grandevo versus a known toxic pesticide reference treatment and a water treatment control.

Grandevo, a cross-spectrum bioinsecticide, is shown to be effective in controlling chewing and sucking insects, as well as mites. It works through oral toxicity, reduced reproduction, and repellency. While tested extensively to understand its effects on non-target organisms, including lab studies with bees, prior to its EPA registration in 2012, Grandevo was not required to be field tested with honeybees.

“With the growing concern about the hazards many insecticides pose to bees and bee colonies, it was extremely important to do this field study. We can now reassure growers that Grandevo will not harm honeybees and can provide critically needed pest control throughout the growing season, including when bees are active,” Dr. Tim Johnson, global head of product development with MBI, explains.

The study began with Grandevo being applied on buckwheat pre-bloom and seven days later at full bloom during bee flight. The Grandevo maximum label rate of three pounds per acre was applied. Bee mortality was not statistically different between the water treatment control group (30 bees per colony) and the Grandevo-treated group (24.1 bees/colony) measured seven days after the initial application of Grandevo. At the same time, the known toxic pesticide treatment mortality rate was 1,808 bees per colony.

Marrone Bio Innovations is currently updating Grandevo state registrations with the revised environmental hazards statement.

For more information on the Grandevo field trial in North Carolina, visit the Marrone Bio Innovations website.

Topics: , ,

Leave a Reply

One comment on “EPA Removes Bee Toxicity Warning From Grandevo

Fruits Stories

FruitsAnnual Santa Maria Strawberry Meeting Approaching
October 22, 2014
The meeting will focus on IPM practices, weed management, updates on fumigation, and more. Read More
Apples & PearsUSApple’s AppletizeMe Personality Quiz Help Consumers Find Ideal Apple Varieties and Perfect Food Pairings
October 22, 2014
Award-winning national apple month campaign returns with more featured varieties and informative videos. Read More
Farm ManagementUSDA Awards $18 Million To Stimulate Research And Development Innovation
October 22, 2014
The grants will provide resources to help small operations create breakthroughs, says USDA Secretary Tom Vilsack. Read More
CitrusEPA Launches Program To Reduce Pesticide Drift
October 22, 2014
The voluntary star-rating program aims to protect people, wildlife and the environment. Read More
CitrusMcCrometer Introduces New Ag Management Mobile App
October 22, 2014
The app displays data on weather, ET, soil moisture, water flow, and more. Read More
Apples & PearsNew York Apple Growers Partner With Grocer To Introduce SnapDragon Apples
October 22, 2014
First apples of this new variety to hit Wegmans stores as part of a marketing effort. Read More
CitrusAgriculture, Interior Departments Partner To Measure Conservation Impacts On Water Quality
October 22, 2014
Goal is to provide science-based information for watershed wellness. Read More

The Latest

Farm ManagementBill Gates Uploading Lots Of Florida Farmland
October 22, 2014
Recent acquisition for the Microsoft icon involves more than 4,500 acres for nearly $28 million. Read More
FruitsAnnual Santa Maria Strawberry Meeting Approaching
October 22, 2014
The meeting will focus on IPM practices, weed management, updates on fumigation, and more. Read More
Farm ManagementUSDA Awards $18 Million To Stimulate Research And Devel…
October 22, 2014
The grants will provide resources to help small operations create breakthroughs, says USDA Secretary Tom Vilsack. Read More
CitrusEPA Launches Program To Reduce Pesticide Drift
October 22, 2014
The voluntary star-rating program aims to protect people, wildlife and the environment. Read More
CitrusMcCrometer Introduces New Ag Management Mobile App
October 22, 2014
The app displays data on weather, ET, soil moisture, water flow, and more. Read More
CitrusAgriculture, Interior Departments Partner To Measure Co…
October 22, 2014
Goal is to provide science-based information for watershed wellness. Read More
CitrusIt’s Time For Young Farming Leaders To Engage [Op…
October 21, 2014
Florida Grower editor Frank Giles says there are capable and talented youths in the ag field ready to step up and take the reins. Read More
CitrusBayer CropScience Launches New Award To Recognize Produ…
October 21, 2014
Award recognizes innovation that enhances the role of produce in creating better lives. Read More
FruitsCalifornia Department Of Food And Agriculture Awards $3…
October 21, 2014
State Water Efficiency And Enhancement Program highlights projects implement irrigation systems that reduce water and energy use. Read More
FruitsWashington State University Researchers See How Plants …
October 21, 2014
Results could lead to development of crops that recover from sun damage more easily. Read More
CitrusReport: Major Food And Agriculture Employers Can’t Fi…
October 21, 2014
Current shortage of young farming professionals means ample employment opportunity for the next generation. Read More
CitrusGrowers Need To Take The Ball And Run — Now! [Opi…
October 18, 2014
Help yourself, your farm, and fellow colleagues by becoming more involved in your industry. Read More
CitrusScientists Uproot Common “Superweed” Myths
October 15, 2014
A new fact sheet is available that explores the truth behind two fallacies.   Read More
CitrusUF/IFAS Joins In On Specialty Crop Block Grant Bonanza
October 15, 2014
Researchers partnering with FDACS and USDA on 24 separate projects to strengthen the produce market sector. Read More
Citrus2015 Florida Agricultural Hall Of Fame Inductees Announ…
October 14, 2014
Six more to be honored for helping shape and influence the state’s farming industry. Read More
Does Leaf Cover Interfere With Herbicide Efficacy In Grapevines?
FruitsDoes Leaf Cover Interfere With Herbicide Efficacy In Gr…
October 9, 2014
A raking study investigated what effect falling grape leaves has on herbicide efficacy. See the results here from researcher John Roncoroni, farm advisor at the University of California. Read More
Review Of Glyphosate Resistance Of Horseweed
FruitsReview Of Glyphosate Resistance Of Horseweed [sponsor …
October 9, 2014
Horseweed has been in the deeper soils of Sonoma County, California, for a few years but is now a problem. John Roncoroni, farm advisor at the University of California, shares the problems that horseweed is causing for grape production in Sonoma County. Read More
FruitsCornell University To Host Marketing Conference
October 9, 2014
Two-day event focuses on emerging markets, wholesaling, and ethics in agribusiness. Read More