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ISSUE DATE: 05/07/2012

Experts' letter sparks Bt corn refuge discussion

By Larry Dreiling

For almost a decade now, genetically enhanced corn designed to be resistant to corn rootworm has been a proven tool to reduce chemical usage and increase farmer profit.

Now, some of the top university entomologists in the U.S. say it's critical that farmers alter their planting decisions to cope with the 2009 discovery of field-evolved resistance to a Bt transgenic hybrid in the continental U.S.

In a March 5 letter to the Office of Pesticide Programs of the Environmental Protection Agency, a group of 22 university and government scientists said the widespread use of Bt corn hybrids where they are not economically justified, the repeated deployment of hybrids expressing the same toxin in the same fields year after year, violations by producers of stewardship requirements for refuges, and decreased options to employ alternative forms of pest management are to blame for this resistance to reveal itself.

The problem, the letter's authors say, provides an opportunity to assess and respond to the current situation, one that should be acted upon carefully, but with a sense of some urgency.


NEWS

Authorities urge caution regarding stolen meat
DOL nixes proposed child farm labor rule
Earthworms play crucial role in ecosystem
Food safety handling classes offered across Kansas
Researchers develop new approach to molecular plant breeding
Senate ag panel passes farm bill
Taking a closer look at the U.S. debt

CROPS

Agroforestry, water and wildlife field day planned
Applications for NRCS Organic Initiative due June 1
Channel Achievement Series offers insights to producers
Experts' letter sparks Bt corn refuge discussion
Spring field day scheduled

LIVESTOCK

AQHA offering Show Management 101
Dairy study to determine how breed affects longevity
Economist: Safety measures reduce market impact of BSE case
FDA antibiotics proposal may hurt producers
Law enforcement officials train in equine welfare investigations
Lawmakers, livestock groups express concerns on mandates
Make the most of calf vaccinations
Notice for Kansas horse breeders, racing orgs, owners
Rabid animals reported
Sheep industry: U.S. should open key export markets
Show-Me-Select heifers to sell May 18
Stockgrowers call on USDA to reform Beef Checkoff Program
Stockgrowers support Livestock Disaster Protection Act
Teleseminar: Laminitis--the Latest set for May 17
Webinar offered on legal issues involving livestock

EDITOR

Department of Labor backs down
Flying pigs
How full is your glass?

COLUMNS

A Brave New World--Trainees wanted
After a rocky start, Senate Agriculture Committee advances 2012 farm bill
Calluses located in the wrong spot
Cross-spectrum herbicide now available for sunflowers
Grain carts offer corner auger
Just a scoop full
New power tarp systems
Zumba at your own risk

MARKETS

Aberdeen cattle sales report
Ada livestock sales report
Amarillo livestock auction report
Apache livestock auction report
Arkansas livestock auction summary
Colorado feeder cattle summary
Corn planting progresses rapidly
Dalhart livestock auction report
Dodge City cattle sales report
Dunlap feeder cattle auction report
Ericson livestock auction report
Georgia cattle auction summary
Grain market close
Grains trade higher, corn and soybeans rally late
Hay demand light, prices remain steady
Hay trade slow
High Plains slaughter news report
Joplin regional cattle sales report
Many crops could use rain
McAlester livestock auction report
Most of state sees dry conditions
Most topsoil moisture rated short or very short
Ogallala livestock auction report
OKC West livestock market report
Planters rolling
Planting progresses until precipitation stops fieldwork
Pratt 3 p.m. cattle report
Pratt livestock auction report
Precipitation slows planting, improves crop conditions
Record heat, isolated heavy rainfall
Record high temps seen
Salina livestock auction report
Springfield dairy heifer sales report
Springfield livestock auction report
State sees scattered showers
Statewide, topsoil moisture drops
Temperatures allow crop growth
Texas Direct feeder cattle summary
Tulia livestock auction report
Tulsa livestock auction report
Warm, rainy conditions prevail
West Plains regional cattle sales report
Woodward livestock auction report

RANGE

Dung beetles may be key to improving rangeland management
Good forage grows 'bittersweet' situation for ranchers
Irrigating forage can increase yield and consistency
Use caution before restocking after drought

FAMILY

Barn Cat
Caring for perennials in spring
Flowering dogwoods in bloom earlier than usual
Grilled to perfection
How do I forgive my wife?
Lines of holes in trees may be work of yellow-bellied sapsuckers
Longevity, taste make asparagus a garden favorite
Maintaining your lawn
Meditation
Now is the time to plant sweet potatoes
Rice is nice
Selecting and planting shrubs
Smaller Winter Woods ideal for couples

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