January 2009 - Posts

Friday, January 30, 2009 1:44 PM

The Good Ole Days?

Back in the days before glyphosate-tolerant crops became so pervasive, weed resistance fears centered on ALS herbicides, which were used to control waterhemp. Currently, nearly all waterhemp populations are assumed resistant to ALS herbicides because
Posted by Chuck Foresman | 0 Comments
Thursday, January 29, 2009 12:11 PM

The Rewarding Residual

Source: University of Illinois, 2008. The ease and efficiency of glyphosate-based programs encouraged growers to shy away form pre-emergence residual herbicides. With the growing number of glyphosate-resistant weeds and bottom lines suffering from early-season
Posted by Chuck Foresman | 0 Comments
Friday, January 23, 2009 5:46 PM

Weed Resistance: A Numbers Game

For each herbicide and weed species a probability exists that a naturally occurring resistant plant may be in a population, which could lead to a resistance problem. As I mentioned earlier this week in my post about other resistances , if there is a large
Posted by Chuck Foresman | 0 Comments
Wednesday, January 21, 2009 6:07 PM

Other Resistances

Fungicide and insecticide resistance were discovered long before herbicide resistance. This is because fungi and insects have large populations and reproduce rapidly, compared to weeds that only reproduce once a year. Insects can reproduce several times
Posted by Chuck Foresman | 0 Comments
Thursday, January 15, 2009 11:44 AM

New Year’s Resolution: Weed Management

Every year people make New Year's resolutions that quickly fall by the wayside. This year, stick to yours. Glyphosate weed resistance is a problem that is going to get worse before it gets better and when it comes to tackling tough weeds, the best
Posted by Chuck Foresman | 0 Comments
Friday, January 09, 2009 4:22 PM

Answers to Resistant Weed Quiz

The answers to the Resistant Weed Quiz are in bold. How did you do? What is the definition of herbicide resistance? The incremental tolerance of a weed population to a herbicide with each generation, eventually leading to resistance. The failure of a
Posted by Chuck Foresman | 0 Comments
Wednesday, January 07, 2009 12:02 PM

Resistant Weed Quiz

Answers to the Quiz will be posted later this week. Good luck! What is the definition of herbicide resistance? The incremental tolerance of a weed population to a herbicide with each generation, eventually leading to resistance. The failure of a herbicide
Posted by Chuck Foresman | 0 Comments