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 & PearsNovember Cold May Hurt Washington Orchards
December 17, 2014
But it’s too early to tell if well-below-normal temperatures will increase tree mortality. Read More
Apples & PearsFour Highlights You May Have Missed At Great Lakes Expo
December 16, 2014
Record-setting crowd sat in on presentations featuring precision orchard management, mechanical berry harvesters, biocontrols, and more. Read More
FruitsGrower Input Needed For Spotted Wing Drosophila Survey
December 16, 2014
Results of stakeholder needs survey helps prioritize research and education activities. Read More
CitrusUSDA Offers Crop Disaster Assistance For Fruit And Vegetable Growers
December 16, 2014
Free basic coverage plans and premium discounts available for new, underserved, and limited income farmers who had been ineligible for federal crop insurance. Read More
Crop ProtectionFine Americas Bolsters Technical, Sales Force
December 16, 2014
Plant growth regulator company adds two industry veterans to enhance agriculture, ornamental, and landscape business. Read More
Apples & PearsRecord Crowds Flock To Washington Horticultural Show
December 16, 2014
More than 1,600 attend; banquet attendance is up by nearly 100. Read More
CitrusSouth Florida Takes Plunge With Major Expansion Of Water Storage Program
December 15, 2014
New ag land partnerships, including a $124 million deal with Alico, more than double the current holding capacity. Read More

The Latest

CitrusAg Land Value Goes Back To The Future
December 20, 2014
Good ground and longevity are the best positions moving forward. Read More
CitrusFeed The People With Food And Food For Thought [Opinion…
December 19, 2014
Educating the general public about agriculture is a daunting task that can be accomplished one bite at a time. Read More
Fruits6 Food Trends For 2015
December 17, 2014
University of Florida experts predict what will be cooking for the upcoming year. Read More
Apples & PearsNovember Cold May Hurt Washington Orchards
December 17, 2014
But it’s too early to tell if well-below-normal temperatures will increase tree mortality. Read More
Apples & PearsFour Highlights You May Have Missed At Great Lakes Expo
December 16, 2014
Record-setting crowd sat in on presentations featuring precision orchard management, mechanical berry harvesters, biocontrols, and more. Read More
FruitsGrower Input Needed For Spotted Wing Drosophila Survey
December 16, 2014
Results of stakeholder needs survey helps prioritize research and education activities. Read More
CitrusUSDA Offers Crop Disaster Assistance For Fruit And Vege…
December 16, 2014
Free basic coverage plans and premium discounts available for new, underserved, and limited income farmers who had been ineligible for federal crop insurance. Read More
Crop ProtectionFine Americas Bolsters Technical, Sales Force
December 16, 2014
Plant growth regulator company adds two industry veterans to enhance agriculture, ornamental, and landscape business. Read More
Apples & PearsRecord Crowds Flock To Washington Horticultural Show
December 16, 2014
More than 1,600 attend; banquet attendance is up by nearly 100. Read More
CitrusSouth Florida Takes Plunge With Major Expansion Of Wate…
December 15, 2014
New ag land partnerships, including a $124 million deal with Alico, more than double the current holding capacity. Read More
CitrusApplications Now Being Accepted For Florida Specialty C…
December 12, 2014
$4.5 million available to help fund industry-enhancing projects. Read More
Food SafetyDel Monte Recalls Fresh Cut Fruit With Apples Due To Po…
December 11, 2014
Voluntary recall enacted following the results of a random test by the Ohio Department of Agriculture’s Division of Food Safety. Read More
CitrusSurvey Shows Food Safety, GMOs Among Public-Issue Conce…
December 9, 2014
Need for education clear as confusion, misperception rampant among results. Read More
Farm ManagementAPHIS Accepting Comments On Streamlining Vegetable And …
December 9, 2014
Move expands general phytosanitary measures and notice-based process for approval of new imports. Read More
FruitsSumitomo Chemical Acquires U.S. DuPont Asana Insecticid…
December 9, 2014
The insect control product will be distributed through Valent U.S.A. Read More
Crop ProtectionBioSafe Systems Announces Amendment To ZeroTol 2.0 Bact…
December 9, 2014
ZeroTol 2.0 is now labeled for use on fruits and vegetables grown in the greenhouse. Read More
CitrusDemand For Florida Farmland Exceeding Supply 
December 5, 2014
High prices and water shortages in other parts of the country have potential buyers looking to the Sunshine State. Read More
FruitsA Combination Of Culprits Are Related To The Decline I…
December 3, 2014
The latest research into Colony Collapse Disorder is focused on a number of issues facing bee populations. Read More