NEWS
South America Calling
Alastair Stewart South America Correspondent
Fri Jun 6, 2014 04:01 PM CDT

Brazilian farmers have noted increased resistance to first-generation Bt technology in corn is on the increase.

And most researchers believe the irregular use of refuges has a significant part to play.

"Varieties that are still used in the U.S. and Europe simply aren't effective here anymore. We can't run through these technologies so quickly," said Richardt Tegnher, commercial manager at Braganca Agronegocios, which plants 55,000 acres in northern Mato Grosso.

Ag tech firms recommend farmers plant up to 20% of their area with non-Bt corn as a strategy to slow the growth of caterpillar resistance in this tropical farming environment ...

Quick View
  • Prepping for a Pest USDA has released a new set of pest response guidelines for Helicoverpa armigera, the voracious g...
  • Racing the Clock For Brian Marshall, the clock starts the minute a new calf hits the ground. Within the first four...
  • Hay Baling Safety Important Looking at it as a sporting event, mid-July is the halftime of the hay baling season in most of t...
  • "Easy Money Times Over" Feeding the world population won't be as hard as expected over the next decade some experts forec...
  • Weathering the Drought Parts of the panhandle and western Oklahoma are still considered as being in extreme or exception...
  • Clearing the Air EPA Administrator Gina McCarthy told a group of agribusiness representatives that her agency want...
  • Klinefelter: By the Numbers Peak prices since 2007 didn't slow megafarm consolidation. Mid-size operators may need to collabo...
  • Corn's Hidden Highways Scientists are rewriting the route to better hybrids.
  • Ask the Vet Before implanting heifers that will be bred, consult with a veterinarian to be sure fertility won...
Related News Stories
Brazil's Second-Crop Corn