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The Impact of ROW Management on Apiary Populations. Gary S. Reuter, University of Minnesota www.beelab.umn.edu. Your breakfast without bees. Scientific American April 2009. V alue of crops in US that depend on pollination: >$18.9 billion $ 217 billion worldwide. - PowerPoint PPT Presentation
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The Impact of ROW Management on Apiary Populations Gary S. Reuter, University of Minnesota www.beelab.umn.edu
Your breakfast without bees
Scientific American April 2009
Value of crops in US that depend on pollination: >$18.9 billion
$217 billion worldwide
Alfalfa Hay – Bee Pollination – Dairy and Beef
Your grocery store without bees
Healthy BeesHealthy FoodHealthy Lives
Honey Bees
Decline in U.S. honey bee colonies 1945-2007
Since 2007, 30-40% of all honey bee colonies die annuallyBeekeepers struggle to replace losses
Wild Bee Pollinators Also in Decline
Bumblebee
Sweat bee
Miner beeLeafcutter bee
Orchard Mason bee
Photo: Matthew Shepherd
Ground-nesting (~70%)
Wild Bee NestsTunnel-nesting (~30%)
Wild Bees:Larva feeds on pollen ball provisioned by mother bee
750,000 acres of almonds in Central CA requires 1.5 million colonies of honey bees for pollination
No Bees, No Nuts
72,000 acres of blueberries across U.S. requires 150,000 colonies of honey bees for pollination
No Bees, No Berries
Colonies trucked in and out because after bloom there are no flowers and
many pesticide applications
Protect Bees FoodIf there are flowers blooming, there will be
bees foraging
What bees eat• Pollen - protein• Nectar – carbs• Water
Pollination Happens
“Bee” FlowersMajor Honey Plants• Clover• Alfalfa• Basswood• Buckwheat
Wildflowers/ weeds• Mustards• Vetch• Dandelion• Goldenrod• Sumac
Trees - pollen• Maple• Willow• Oak
Gardens/ fruit trees• Vine crops• Berries• Canola• Apple
Bees collect corn pollen but only when hungry (low protein content)
Bees may collect nectar from soybeans in MN only when hot and humid
Bees forage 2.5 miles from colony, on average
What can the public do?
Plant flowers!www.xerces.org/
pollinator-conservation/
• Pay attention to neonicotinoid systemic insecticide use, especially in urban landscapes!
• Plant bee gardens
• Encourage roadside plantings of flowers
• CRP land: put legumes in mix
What can the public do?
Plant flowers!www.xerces.org/
pollinator-conservation/
• Pay attention to neonicotinoid systemic insecticide use, especially in urban landscapes!
• Plant bee gardens
• Encourage roadside plantings of flowers
• CRP land: put legumes in mix
Ice fishing in Minnesota
Collecting Pollen and Nectar
Foraging trip of a weakened bee in our modern landscape:
What can you do to help?
• Turn off the sprayer.
What can you do to help?
• Turn off the sprayer.
• Learn what the noxious weed look like.
Questions?
The endReferences
Gary S. Reuter [email protected] University of Minnesota, 1980 Folwell Ave. Rm 219, St. Paul, MN 55108
www.tc.umn.edu/~reute001Equipment plansCool PicturesBeekeeping information
BeeLab.umn.eduHelp build bee labBee Squad information“Healthy Bees” on-line course!
open for registration, $25 for 4 year accessBumble bee rearing manual, for sale!Book on “Alternative Pollinators” to be publishedProtecting Pollinators posterBeekeeping Manual & videoHoney bee Queen Rearing Manual & videoBeekeeping PostersMead Making Poster
1/3 of the food you eat is
dependent on pollination by honeybees.
allspice
Macadamia
Crops Pollinated by Honey Bees
Burdock
Thistle
Sunflower
Canola
Clover
DandelionBerries
Milkweed
Butterfly weed
Sumac
BerriesBasswood VetchVine crops
“Bee”
Flowers
Bumblebee Rearing Maunual available on web site
BEE RESEARCH FACILITY
PERSPECTIVE – Two Level Option
www.BeeLab.UMN.EDU
ReferencesGary S. Reuter [email protected]
University of Minnesota, 1980 Folwell Ave. Rm 219, St. Paul, MN 55108
www.tc.umn.edu/~reute001Equipment plansCool PicturesBeekeeping information
Its Back!BeeLab.umn.eduHelp build bee lab“Healthy Bees” on-line course!
open for registration, $25 for 4 year accessBumble bee rearing manual, for sale!Book on “Alternative Pollinators” to be publishedProtecting Pollinators posterBeekeeping Manual & videoHoney bee Queen Rearing Manual & videoBeekeeping PostersMead Making Poster