7. CHECK EARLY PLANTED (late April) BEANS for SOY APHID.
By: Chris DiFonzo
I was in fields today north of Frankenmuth that are 100% infested, averaging 70+ SBA per plant. These were fields planted in April. V3 plant stage. No buckthorn in the immediate area, but this part of Saginaw County is downwind from the Shiawassee and Titibawassee Rivers and the National wildlife preserve south of Saginaw City, all with a lot of buckthorn. So far, this seems to be a unique location combining early planting with early aphid colonization, similar to SE Michigan/ Monroe County in 2005, but its a good idea to concentrate on the earliest planted fields in your area for scouting this week.
There is no cause yet for concern unless fields are 80-100% infested, and the numbers are high (50-100 per plant). If you are finding just a few infested plants in a field or a hot spot here and there, that is NOT a sprayable population.
When should small beans be sprayed? Honestly I am not sure what to do. The 250 threshold was tested in larger beans (say, V5 or greater). I have no good data to modify the threshold down for smaller beans. The infested fields I looked at don't look too bad - they have adequate moisture to replace the aphid feeding, they aren't putting on flowers or other critical structures. They at least can tolerate 100 SBA per plant, and maybe even 250.
There are some risks of spraying early that have been documented:
** aphid populations can 'flare'. Predators will all be killed. The surviving aphids will reproduce fast in the absence of predators.
Some early-sprayed research trials end up with more aphids than unsprayed fields.
** because of the flaring, early colonized fields that are sprayed early may end up being sprayed 3 times instead of twice to achieve the same yield.
Dr. Christina DiFonzo
Field Crops Entomology Program
Michigan State University
East Lansing, MI 48824
8. NEW BULLETIN HELPS FARMERS FIGHT
EAST LANSING, Mich. -- One quarter of the U.S. honeybee population has been lost to colony collapse disorder (CCD), and interest is growing in alternative pollinators such as native bees. A new Michigan State University (MSU) Extension bulletin is available for farmers and other landowners interested in exploring practices to enhance native pollinators on their property.
“Conserving Native Bees on Farmland” (E-2985) provides straightforward information about creating attractive environments for native bees. The bulletin teaches the reader about various native bee species and gives recommendations about nesting sites and food resources.
Honeybees are the most economically important pollinator and are used widely for pollinating crops, but they are also susceptible to diseases and parasites. Colony collapse disorder is a mysterious condition that has appeared recently in which adult honeybees abandon their hives for what appears to be no reason at all.
“With honeybee health problems, focusing on native bees is a strategy to reduce the risks of sole dependence on honeybees,” said Rufus Isaacs, associate professor of entomology. “Our goal is to help growers make sure they can pollinate their crops and have reliable production on their farms every year.”
Entomology graduate student Julianna Tuell did native bee research with 13 growers in conventional blueberry farms and semi-abandoned blueberry fields. She studied a variety of native bees, their habitat needs and feeding preferences. The bulletin compiles her research into recommendations for farmers, gardeners and anyone growing crops that rely on bees for pollination.
“The native bees contribute to pollination, but they won’t replace honeybees,” Tuell said. “The good news is that native bees do not seem to be affected by colony collapse disorder, perhaps because they do not live in large colonies.”
“Conserving Native Bees on Farmland” (E-2985) can be purchased through the MSU Bulletin Office for $2 per copy by calling 517-353-6740 or visiting http://www.emdc.msue.msu.edu/. Discounts are available if the bulletin is purchased for use with MSU Extension programming.
Project GREEEN (Generating Research and Extension to meet Economic and Environmental Needs) funded the entomology research and also supported another new bulletin describing the relationships between native plants and beneficial insects. “Attracting Beneficial Insects with Native Flowering Plants” (E-2973) was written by Isaacs and Tuell, along with MSU entomology researchers Douglas Landis and Anna Fiedler.
Visit www.ipm.msu.edu/plants/home.htm for more information on MSU native plant and beneficial insect research.
Founded in 1997, Project GREEEN is a cooperative effort between plant-based commodities and businesses together with the Michigan Agricultural Experiment Station, MSU Extension and the Michigan Department of Agriculture to advance Michigan’s economy through its plant-based agriculture. Its mission is to develop research and educational programs in response to industry needs, ensure and improve food safety, and protect and preserve the quality of the environment. To learn more about Michigan’s plant agriculture initiative at MSU, visit www.greeen.msu.edu.
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9. 2007 Select Michigan Farmers' Market Promotion Opportunities
The Select Michigan Program, in cooperation with the USDA Agricultural Marketing Service, Michigan Food and Farming Systems, Michigan Farmers Market Association, and the Food Bank Council of Michigan, are pleased to sponsor special farmers' markets this season for Michigan grown and processed food and agriculture products. You are invited to participate in one or all events!
Special Market Dates and Locations:
Buy Local Farmers’ Market, Michigan State Capitol lawn, Lansing
Thursday, July 12 from 10:30 am - 3 pm
Select Michigan Farmers’ Market, Henroy Ford Hospital, Grand Blvd Campus, Detroit
Wednesday, August 22 from 10 am – 2 pm
Michigan State Fair Blue Ribbon Farmers’ Market, Michigan State Fairgrounds, Detroit
Wednesday, August 22 thru Monday, September 3 10 am – 4 pm
Select Michigan Day Farmers’ Market, Michigan State Capitol lawn, Lansing
Thursday, September 13 from 10:30 am – 3 pm
10. Pasture walk topic: Grass-fed Beef On August 7 in Mason, MI
Dan Hudson, MSUE Ingham County is hosting a pasture walk at Maynard Beery’s farm. Maynard will show his farm and explain his pasture system. Please join us for an educational and pleasant evening at Maynard Berry’s farm.
Location: 849 N. Aurelius Road, Mason, MI 48854
Date: August 7
Time: 6:00 p.m.
Invitees: Mid-Michigan Grazing Group and other interested community members
Host: Maynard Beery
Organizer: Dan Hudson, Ingham County MSU Extension
‘Grass-fed’ beef has become increasingly popular in recent years, especially among those who are health conscious or have philosophical reasons for not wanting to consume conventionally produced beef. On August 7 at 6:00 p.m. we will be meeting at the farm of Maynard Beery, a local producer of grass-fed beef. Maynard currently has 15 cows, 8 calves, 8 steers, and a few bulls on 30 acres of perennial pasture and
25 acres of annual forages. His livestock receive no grain supplementation.
Please join us as we learn about this unique system of beef production!
Agriculture and Natural Resources Educator Ingham County MSU Extension
121 E. Maple Street
P.O. Box 319
Mason, MI 48854
Office Phone: 517-676-7207 ext 7291
END! Hope your week goes well and we get some rain!
Organic Vegetable and Crop Outreach Specialist
Michigan State University
C.S. Mott Sustainable Food Systems
303 Natural Resources Bldg.
East Lansing, MI 48824
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