Title of Oral/Poster Presentation

Pigweed Herbicide Resistance

Presenter Information

Lauren Moody, Utah State University

Class

Article

College

College of Agriculture and Applied Sciences

Presentation Type

Poster Presentation

Abstract

One of the most amazing features of nature has been its ability to adapt and evolve. Through genetic drifts, mutations, and many more factorials, species change to be best suited to survive anything that may threaten the population. As society has advanced, we have become the threat to many things we consider pests. One of which is weeds. Since herbicides took off, and even more so with the creation of crops genetically modified against herbicides that allow mass spraying, the genetic pool of weeds have been becoming selected to largely consist of organisms that are resistant to herbicide. A common weed throughout much of North America, Pigweed is one known for its growing herbicide resistance. Different varieties are separately developing resistances to different herbicides. This study was conducted to test the herbicide resistance of different species with different herbicide types. Red root, prostrate, and powell pigweed varieties were grown for 18 days after which groups of plants from each variety will be treated with either 0.0 (control), 0.03125x, 0.0625x, 0.125x, 0.25x, 0.5x, or 1x dose rates of Spartan, Pursuit, 2 4-D, and Roundup. Then they will be checked on for updates 1, 3, 5, 7, 14, and 21 days after to gather data on how well they are doing, looking at the damage present on them. That data will then be used to see the plants resistance to the different herbicides.

Start Date

4-8-2020 2:00 PM

End Date

4-8-2020 3:00 PM

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Apr 8th, 2:00 PM Apr 8th, 3:00 PM

Pigweed Herbicide Resistance

One of the most amazing features of nature has been its ability to adapt and evolve. Through genetic drifts, mutations, and many more factorials, species change to be best suited to survive anything that may threaten the population. As society has advanced, we have become the threat to many things we consider pests. One of which is weeds. Since herbicides took off, and even more so with the creation of crops genetically modified against herbicides that allow mass spraying, the genetic pool of weeds have been becoming selected to largely consist of organisms that are resistant to herbicide. A common weed throughout much of North America, Pigweed is one known for its growing herbicide resistance. Different varieties are separately developing resistances to different herbicides. This study was conducted to test the herbicide resistance of different species with different herbicide types. Red root, prostrate, and powell pigweed varieties were grown for 18 days after which groups of plants from each variety will be treated with either 0.0 (control), 0.03125x, 0.0625x, 0.125x, 0.25x, 0.5x, or 1x dose rates of Spartan, Pursuit, 2 4-D, and Roundup. Then they will be checked on for updates 1, 3, 5, 7, 14, and 21 days after to gather data on how well they are doing, looking at the damage present on them. That data will then be used to see the plants resistance to the different herbicides.