- Posted By: Gale Perez
- Written by: Posted by David Low | WeedsNews2801 | January 22, 2012 | 11:15 PM
Abstract: Organic mulches could be a part of a wide strategy of integrated weed management in vegetable production systems. A 2-year field experiment was carried out in Central Italy with the aim of assessing the effect of grass and legume mulches, coming from winter cover crops, combined with herbicide or mechanical hoeing on weed control, on weed community (density and aboveground biomass of each species), and yield of a pepper crop. Hairy vetch (Vicia villosa Roth), oat (Avena sativa L.) and their mixture were sown in early autumn and suppressed in May. The cover crop aboveground biomass was cut and arranged in strips which were used as beds for pepper seedlings transplanted in paired rows. A conventional treatment...
- Posted By: Brad Hanson
- Written by: WSSA press release
Reposted from a recent WSSA press release on herbicide resistant weeds by the Weed Science Society of America.
Today the Weed Science Society of America (WSSA) announced it will co-sponsor an upcoming scientific summit on how to manage herbicide-resistant weeds — a costly and growing problem threatening crop production across the U.S. and around the globe.
The May 10 event is being organized by the National Research Council, the operating arm of the National Academy of Sciences, and will be held at George Washington University in Washington, D.C.
Several WSSA members will deliver presentations or participate in...
- Posted By: Steve Orloff
- Written by: Steve Orloff
Roundup Ready (RR) alfalfa was the fifth glyphosate-tolerant crop to be commercialized in the United States following canola, soybeans, cotton and corn (1996, 1997, 1997, and 1998, respectively). Its release has been more contentious and highly disputed than any of its predecessors. Its introduction in the fall of 2005 was short lived and an injunction was issued by a circuit court judge in March of 2007 halting new plantings but allowing production on existing fields to continue. Roundup Ready alfalfa was deregulated for the second time in February of 2011 after a 4-year ban. Earlier this month a U.S. federal judge upheld this decision.
Growers and the alfalfa industry as a whole now have a full...
- Posted By: Gale Perez
- Written by: Posted by David Low, The Weed's News; by Bob Egelko, The Chronicle
[The Chronicle 07 jan, 2012 by Bob Egelko] -- A federal U.S. judge has upheld the government's decision to let the nation's alfalfa growers plant the genetically engineered, herbicide-resistant strain manufactured by Monsanto Co., saying the alleged risk of contaminating other crops does not require regulators to impose buffer zones. The U.S. Department of Agriculture approved the use of Roundup Ready alfalfa - so named because it is designed to withstand Monsanto's Roundup herbicide - in January 2011, ending a nationwide ban that another judge had imposed in March 2007. The action was challenged by a group of alfalfa farmers who said they feared that the Monsanto product, spread by winds and bees, would pollinate their crops and take...
- Author: Brad Hanson
Just a quick plug for the 64th Annual California Weed Science Society Conference in Santa Barbara next week (January 23-25th).
A conference flyer and finalized agenda is attached. This is always an excellent way to get updated on weed science issues in the state. It is also a great way to keep up on your DPR continuing education hours (19.5 hr including 4 hr of laws and regulations!).
The program includes sessions on:
Weed School: Environmental Fate of Herbicides
General Session : The Value of Weed Control: What's it all Worth?