Horseweed (Marestail) Resistance

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dc.contributor.author Lester, Alec
dc.contributor.author Rains, Larry
dc.contributor.author Dille, J. Anita
dc.date.accessioned 2019-09-06T16:24:57Z
dc.date.available 2019-09-06T16:24:57Z
dc.date.issued 2018-12-14
dc.identifier.uri http://hdl.handle.net/2097/40180
dc.description.abstract Horseweed has documented resistance to EPSPS inhibitors, PSII inhibitors, ALS inhibitors, and PSI inhibitor (Heap, 2018). Glyphosate resistant horseweed moves the herbicide into a vacuole preventing the herbicide from damaging the plant (Ge, 2010). The objective of the this experiment was to determine if nine different horseweed populations were resistant or not to six different herbicide. Experimental design was a randomized complete block with six herbicides, nine locations, and five replications. Heights were recorded for each population before spraying. Each herbicide was sprayed on October 5, 2018, and rates were paraquat (840 g ai/ha), glyphosate (1260 g ae/ha), glufosinate (738 g ai/ha), Atrazine (560 g ai/ha), chlorimuron (13.1 g ai/ha), and dicamba (560 g ai/ha). Horseweed showed the most resistance to atrazine and glyphosate across all locations, and paraquat in some locations. No herbicide had total control fourteen days after spraying. Dicamba had the greatest control of horseweed across all nine locations. Resistance was difficult to identify because horseweed plants were too mature to effectively be control.
dc.language.iso en_US
dc.rights This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
dc.rights.uri http://rightsstatements.org/vocab/InC/1.0/
dc.subject Fall 2018
dc.title Horseweed (Marestail) Resistance
dc.type Text
dc.date.published 2018
dc.citation.ctitle 3rd Entomology Undergraduate Research Poster Symposium. Manhattan, KS: Kansas State University, Department of Entomology.
dc.description.conference 3rd Entomology Undergraduate Research Poster Symposium. Manhattan, KS: Kansas State University, Department of Entomology.


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This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). Except where otherwise noted, the use of this item is bound by the following: This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).

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