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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...

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...

2011-10-19 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...


Word of the Day
bodacious
  • Remarkable; prodigious.
  • Audacious; gutsy.
  • Completely; extremely.
  • Audaciously; boldly.
  • Impressively great in size; enormous; extraordinary.
This word is probably from the dialectal 'boldacious,' a blend of 'bold' and 'audacious.'
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