Research

A 40 year veteran of weed research reflects on his career

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Bob Wilson, the weed specialist at the University of Nebraska’s Panhandle Research & Extension Center is retiring this month. Dr. Wilson has been a long-time mentor to me, serving as advisor for my M.S. and co-advisor for my PhD. Since then, we’ve collaborated on many projects aimed at helping sugarbeet producers better manage difficult weeds. […]

What have they done to our FOOD?

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Department of Plant Sciences Seminar  What have they done to our FOOD? Andrew Kniss, Ph.D. Friday, October 17th, 2014 College of Agriculture and Natural Resources AG 1032 1:10 PM   People in developed countries seem more interested than ever in the way their food is produced. Genuine interest in the food we eat is, without […]

Seralini Rat Study Revisited

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Anyone interested in the GMO debate has probably heard about the Seralini paper that I criticized a while back. That paper was eventually retracted by the original journal, and it has now been re-published in a different journal. There are quite a few articles describing the background, so I won’t get into those details. I suggest reading recent […]

Fitness of herbicide resistance genes revisited

Figure 2 from Giacomini et al. (2014)

Last August, an article was published in New Phytologist that claimed a transgene added to rice could increase the fitness of a weedy relative. The paper was covered in the media pretty widely. When I read the paper, I didn’t think the authors presented nearly enough data to support their conclusions. You can find my […]

Are herbicides responsible for the decline in Monarch butterflies?

Monarch butterfly caterpillar feeds on a milkweed plant

The monarch butterfly is in bad shape. The number of monarchs returning to their overwintering sites in Mexico has been declining steadily for at least a decade. The consensus suggests there are several reasons for this decline, including loss of their overwintering habitat and unfavorable weather patterns. But the purported cause of monarch decline that […]

Do cultural and mechanical weed control practices delay development of herbicide resistant weeds?

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Researchers from Wyoming, Nebraska, and Montana will use kochia in a five-year study to help find a solution to weed-resistance to herbicides. Department of Plant Sciences associate professor Andrew Kniss has received a National Institute of Food and Agriculture grant to analyze methods of weed control other than herbicide. “Diverse crop rotations and tillage are commonly […]

Could a herbicide-resistance gene provide fitness benefits in the absence of the herbicide?

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A really interesting study was reported by Nature News, and has been picking up steam around the interwebs (including Wired and Scientific American). The headlines read “Genetically modified crops pass benefits to weeds” and “weeds get unintended ‘fitness’ boost from genetic modification.” The stories are reporting on a study in New Phytologist titled “A novel EPSP […]

Golden Rice Field Study Destroyed

Image of Golden Rice

Quite sad. Reminds me of the 3 steps for becoming an anti-GMO activist I wrote about last summer: 3 simple steps for anti-GMO activists: Oppose GMO crops on the basis that there is insufficient research. Destroy the research. Go to 1. Read more about destruction of the Golden Rice study at Biofortified.org Like this:Like Loading…

Using ethofumesate when irrigating for emergence

Bedding operation with "small" soil movement.

by Andrew Kniss & Abdel Mesbah At a recent meeting in Powell, I was asked how to best use ethofumesate (active ingredient in Nortron SC and other herbicides) in fields that must be furrow irrigated for sugarbeet emergence. This is a difficult question. Ethofumesate (and almost all soil applied herbicides) require soil moisture to be […]

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