Jan 24, 2012

"the solution" - Don't Expect the Waterhemp Problem To Go Away Anytime Soon - Farm Progress

Why is it that "the solution" to any weed problem, in modern monoculture farming, is more chemicals that kill the life of our soils? Why is it that "Extension specialists" are quoted, but the bottom line solution most always comes from Monsanto (advertiser in publications putting out articles). Are we stuck on stupid? 

I would like to have your comments on this subject? Please post at Reddit:
http://reddit.com/r/farming/comments/oug8m/the_solution_dont_expect_the_waterhemp_problem_to/

Regards to all,
Monte Hines
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Farm Progress - article
Extension specialists have tips for managing the weed in 2012.
Compiled by staff
Published: Jan 24, 2012


Waterhemp is a problem for farmers from Texas to Maine, but it seems that Midwest farmers are bearing the brunt of this particular problem weed.

Midwest extension specialists are telling farmers to watch out for waterhemp in 2012. Southern Illinois University Professor of Weed Science Dr. Bryan Young estimates that 90% of Illinois acres from Bloomington to Decatur have waterhemp present.

"Waterhemp is a challenge for growers and has been for the last 20 plus years," says Young. "Throw in the challenge of herbicide resistance and it's no wonder that waterhemp has become public enemy number one for growers."

While waterhemp is native to the U.S., it didn't become a major agronomic problem until the 1980's when reduced tillage systems and simplified weed management programs contributed to the problem that waterhemp is now.

"In Iowa, we have resistance to waterhemp in the triazine, ALS inhibitor, PPO inhibitor, glyphosate and HPPD inhibitor herbicides," says Dr. Mike Owen, extension weed specialist and professor of agronomy at Iowa State University. "At this point, growers should presume resistance exists and plan their weed management programs accordingly."

Waterhemp seedlings are typically hairless with waxy and glossy leaves, with a native habitat of flood plains and other wet, low-lying areas. The weed is also well adapted to conservation tillage and no-till.

The big challenge, however, is once waterhemp becomes established it has a growth rate 50% to 70% greater than other annual weed species. Combine that growth rate with the plant's relative long germination and farmers have a problem on their hands.

"When allowed to compete with crops during the growing season, waterhemp can cause dramatic yield losses in both soybeans and corn," says Dr. Rick Cole, weed management product manager at Monsanto Company. "Combine that with everything else we know about waterhemp and you can have a formidable – yet manageable – challenge for farmers."

Researchers agree farmers should develop their weed management strategies as if all waterhemp is resistant to one or more herbicides and plan long-term management strategies.

"All herbicide weed management needs, including that for waterhemp, to be redundant," says Owen. "Growers should focus on five years down the road not just on the flush in front of them or what they expect from the coming year."

Beyond that, Owen provides some simple steps for managing waterhemp, and other resistant weed species.
  • DO NOT use only one tactic or herbicide to control weeds.
  • DO use tank-mixes of herbicides with different modes of action (MOAs) that will control the weeds of concern. Refer to the herbicide group number to determine if the herbicides have different MOAs.
  • DO scout early and often. While you may not think weeds exist in the un-tilled fields, look closer. The weeds are there and they will cost you money if you do not manage them prior to, or IMMEDIATELY after, planting.
  • DO use a soil-applied residual herbicide on all acres regardless of crop or trait.
  • DO know what herbicides you are planning to use, what they control, replant restrictions and if there is significant potential for crop injury.
"These steps are critical for farmers who are managing for waterhemp," Cole agrees. "It is with these recommendations in mind that we have created the Roundup Ready PLUS platform for farmers."
Permalink: Click here
Tagged: herbicide, herbicides, Extension, tillage, combine
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Additional links:
Monsanto and the Roundup Ready Controversy - SourceWatch
Monsanto's Crops Spawning Superweed Epidemic in U.S.

Polyculture Farming links:
permies.com & richsoil.com

1 comment:

Stephen said...

I think we need to accept that there is no perfect herbicide and that chemicals may not control 100% of the weeds on a farm anymore. The answer is NOT more herbicides or more GMO crops, but less of both. The more herbicide that is used, the greater the chance the weeds will become resistant to it.

My answer is that we wiil need more farm laborers and LESS HERBICIDES in the future, and less GMO seeds. So get out the hoes, ask the families, high school students, and day laborers to help pull weeds again. Agriculture will need you!