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

Apples & PearsEPA Approves Three New Moth Mating Disruption Products
November 25, 2014
Codling moth and oriental fruit moth are targeted by apple and pear growers. Read More
FruitsFruitGrowerConnect Brings Buyers And Sellers Together [Slideshow]
November 25, 2014
Suppliers and growers got down to business in San Diego discussing current needs, solutions, and ways to increase efficiencies on the farm. Read More
CitrusReasons Aplenty Florida Growers Should Feel Good Going Into 2015 [Opinion]
November 24, 2014
Thanks to recent industry achievements, the next 12-month period is shaping up to be a year to remember --- fondly. Read More
BerriesSuspected Borer Could Be Big Bother To Florida Blueberry Growers
November 24, 2014
Producers warned to be on the lookout as scientists probe samples. Read More
FruitsRegistration Opens Dec. 1 For NAFDMA 30th Annual Convention
November 24, 2014
The five-day event includes bus tours, educational sessions, workshops, and a business exchange in Tennessee in February. Read More
CitrusIndustry Organizations Sound Off On President’s Immigration Plan
November 21, 2014
Agriculture is not given the attention it so sorely deserves when it comes to the immigration debate. Read More
CitrusRamped-Up Predatory Mite Production To Benefit Growers
November 21, 2014
Biologics company Beneficial Insectary now rearing two species in its California facility. Read More

The Latest

CitrusBe Willing To Take A ‘Wild Turkey’ Approach…
November 27, 2014
Editor Frank Giles says Florida Grower will be stepping up to the bully pulpit in 2015 addressing topics that impact the industry the most. Read More
CitrusNew Partnership To Expand ‘Fresh From Florida’ Foot…
November 26, 2014
Latest deal puts exclamation point on successful Asia marketing campaign. Read More
FruitsWet December Predicted For Parched California
November 25, 2014
National Weather Service says above-normal precipitation expected; it may continue through the winter in central and southern parts of the Golden State. Read More
Apples & PearsEPA Approves Three New Moth Mating Disruption Products
November 25, 2014
Codling moth and oriental fruit moth are targeted by apple and pear growers. Read More
FruitsFruitGrowerConnect Brings Buyers And Sellers Together […
November 25, 2014
Suppliers and growers got down to business in San Diego discussing current needs, solutions, and ways to increase efficiencies on the farm. Read More
CitrusReasons Aplenty Florida Growers Should Feel Good Going …
November 24, 2014
Thanks to recent industry achievements, the next 12-month period is shaping up to be a year to remember --- fondly. Read More
FruitsRegistration Opens Dec. 1 For NAFDMA 30th Annual Conven…
November 24, 2014
The five-day event includes bus tours, educational sessions, workshops, and a business exchange in Tennessee in February. Read More
CitrusIndustry Organizations Sound Off On President’s Immig…
November 21, 2014
Agriculture is not given the attention it so sorely deserves when it comes to the immigration debate. Read More
CitrusRamped-Up Predatory Mite Production To Benefit Growers
November 21, 2014
Biologics company Beneficial Insectary now rearing two species in its California facility. Read More
Fruits2014 California Winegrape Harvest: Outstanding
November 21, 2014
It’s the earliest crop of the decade, but still a third in a string of great vintages. Read More
FruitsFetzer Vineyards Pioneers Zero Waste
November 21, 2014
Company achieves top sustainability certification by diverting 98% of its waste from the landfill. Read More
FruitsClassic Turkey Day Dinner Costing Consumers More This Y…
November 20, 2014
Despite increase, a family of 10 can still get stuffed for less than $50. Read More
EquipmentHighlights From EIMA International In Italy [Slideshow]
November 19, 2014
The 2014 edition of the International Agricultural and Gardening Machinery Exhibition (EIMA) boasted a record number of attendees from 124 countries. Read More
FruitsFixing Farm Labor Woes Worth The Extra Effort [Opinion]
November 19, 2014
40th annual Ag Labor Relations Forum encourages outreach and action. Read More
CitrusWomen’s Impact On Agriculture Impressive [Opinion…
November 18, 2014
Florida Agriculture Commissioner Adam Putnam says the long-term sustainability of farming depends on our youth. Read More
Business PlanningFarm Executive Workshop To Build Management, Leadership…
November 17, 2014
Penn State Extension offering unique learning event for those looking to bolster business. Read More
Farm ManagementGrowing Produce Without Risk Management Program Is A Ba…
November 14, 2014
Utilize available insurance tools to ensure opportunities for long-term survival and success. Read More
FruitsWestern Growers Frustrated By Shutdown Of Ports
November 14, 2014
Pacific Maritime Association is accusing union of intentional work slowdown. Read More