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Latest Western corn rootworm Stories

2013-11-26 16:35:13

Corn that contains proteins that protect it from insect damage has been grown in the U.S. since the mid-1990s. Known as Bt corn, because the proteins are derived from a bacterium called Bacillus thuringiensis, these plants have been widely grown by farmers. While Bt corn has been highly effective against the European corn borer, it has been less so against the western corn rootworm, which has been documented to show resistance to the Bt proteins. In a new article in the Journal of...

2013-02-28 00:22:59

- Approval sets new standard for corn rootworm control BASEL, Switzerland, Feb. 28, 2013 /PRNewswire/ -- Syngenta announced today that the United States Department of Agriculture (USDA) has fully deregulated Agrisure(®) Duracade(TM), enabling launch in the US for the 2014 planting season. Agrisure Duracade expresses a unique protein to control corn rootworm. It has a different mode of action to Syngenta's existing Agrisure(®) RW trait. When combined these traits...

2013-02-25 12:21:21

Recipients will pursue research dedicated to finding solutions to help manage corn rootworm ST. LOUIS, Feb. 25, 2013 /PRNewswire/ -- Monsanto Company has announced that six recipients will be awarded research grants as part of the Corn Rootworm Knowledge Research Program. The program was established to provide merit-based awards of up to $250,000 per award per year for up to three years for outstanding research projects that address specific aspects of corn rootworm biology,...

2012-09-19 06:22:08

ST. LOUIS, Sept. 19, 2012 /PRNewswire/ -- Monsanto Company (NYSE: MON) has pledged up to $3 million dollars to support academic research on corn rootworm. The Corn Rootworm (CRW) Knowledge Research Program will provide merit-based awards of up to $250,000 per year for up to three years for outstanding research projects that address specific aspects of corn rootworm biology, genomics and management issues. Corn rootworm is one of the most damaging pests on the farm. The U.S. Department of...

How Western Corn Rootworm Resists Crop Rotation
2012-07-19 08:40:51

A new study answers a question that has baffled researchers for more than 15 years: How does the western corn rootworm — an insect that thrives on corn but dies on soybeans — persist in fields that alternate between corn and soybeans? The answer, researchers say, has to do with enzyme production in the rootworm gut. Their findings are described in a paper in Ecology and Evolution. Crop rotation declined in the middle of the 20th century as the use of insecticides and...

More Acreage Needed To Slow Pest Resistance To Biotech Corn
2012-06-05 09:29:21

To slow resistance of western corn rootworm beetles to genetically protected crops, much larger 'refuge' acreages of conventional crops have to be planted, 2 experts warn in a paper published in the Journal of Economic Ecology Genetically modified crops that produce insect-killing proteins from the bacterium Bacillus thuringiensis (Bt) have reduced reliance on insecticide sprays since 1996. These proteins are lethal to some devastating crop pests, but do not harm most other creatures...

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2012-03-12 10:26:26

The corn rootworm -- one of the most economically destructive insects of maize in the United States -- is threatening to become agriculture´s worst nightmare as biotech corn is continually losing its resistance to the damaging pests. The problem is so severe that a group of scientists wrote a letter to the Environmental Protection Agency (EPA) warning that action needs to be taken to rid agriculture of the devastating insects. The problem was first made aware of last year, when...

2011-11-30 07:00:00

ST. LOUIS, Nov. 30, 2011 /PRNewswire/ -- Recognizing that pyramided, dual mode-of-action technologies are the most effective means to maintain the long-term durability of corn trait technologies, the U.S. Environmental Protection Agency (EPA) has extended the registrations of two corn trait products, Genuity® SmartStax® RIB Complete(TM) and Genuity® SmartStax®. The EPA granted the initial registration of...

2011-10-19 13:08:44

Scientists have developed Bt toxins for the management of Bt resistance in European corn borer and other crop pests. Toxins from Bacillus thuringiensis bacteria (Bt toxins) are used in organic and conventional farming to manage pest insects. Sprayed as pesticides or produced in genetically modified plants, Bt toxins, used in pest control since 1938, minimize herbivory in crops, such as vegetables, maize or cotton. Since 1996, Bt producing transgenic crops have been grown, which...

2010-10-08 02:18:50

Transgenic corn's suppression of the European corn borer has saved Midwest farmers billions of dollars in the past decade, reports a new study in Science. Research conducted by several Midwest universities shows that suppression of this pest has saved $3.2 billion for corn growers in Illinois, Minnesota, and Wisconsin over the past 14 years with more than $2.4 billion of this total benefiting non-Bt corn growers. Comparable estimates for Iowa and Nebraska are $3.6 billion in total, with $1.9...