Sentence examples for resistant weeds from inspiring English sources

Those include the failure of engineered traits to be expressed consistently, and cross-contamination with wild relatives and evolution of resistant weeds and pests (in the case of herbicide resistance traits).

This GE corn will foster rapid evolution of resistant weeds that require more toxic pesticides to kill, followed by more resistance and more pesticides--a chemical arms race in which the only winners are pesticide (aka biotechnology) firms.

For decades, farmers have responded to resistant weeds by turning to a new herbicide.

The resistant weeds could also be a problem for the Monsanto Company, which developed both Roundup and the Roundup Ready crops.

"Fight resistant weeds with fall, spring attack," declares a headline in Delta Farm Press, a farming trade magazine serving the Mississippi river delta.

This is because HTGE crops are followed by glyphosate resistant weeds, which leads to an increase in the amount of herbicides used to tackle them.

There were no glyphosate-resistant weeds when genetically engineered crops were introduced.

It said it was working with farmers to help manage and monitor herbicide-resistant weeds.

Some environmentalists say the use of Roundup on sugar beets could contribute to the growing problem of Roundup-resistant weeds.

But the Roundup-resistant weeds that are now causing concern were not created this way, scientists said, but rather through evolution.

To limit the evolution of glyphosate-resistant weeds, the report advised, farmers should rotate herbicides or mix glyphosate with other chemicals.