Control and distribution of glyphosate-resistant giant ragweed in Ontario: Windsor, LaSalle, and Amherstburg, Essex County, Ontario [Canada] 2011 and 2012

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Follings, Joanna; Sikkema, Peter, 2013, "Control and distribution of glyphosate-resistant giant ragweed in Ontario: Windsor, LaSalle, and Amherstburg, Essex County, Ontario [Canada] 2011 and 2012", https://hdl.handle.net/10864/F3FYT, Borealis, V4

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Description	This dataset is comprised of two surveys examining the control of glyphosate resistant giant ragweed in soybean with 1) preplant herbicides and 2) postemergence herbicides and 2,4-D dose response. The objective of the first survey was to determine effective control options for glyphosate resistant giant ragweed in soybean with herbicides applied preplant. Eighteen herbicide combinations were evaluated in field studies conducted in 2011 and 2012 at five locations with confirmed glyphosate resistant giant ragweed. The field sites were located near Windsor (L2 and L5), LaSalle (L1 and L4) and Amherstburg (L3), Essex County, Ontario. Two sets of experiments evaluating the effectiveness of glyphosate tankmixes with herbicides applied preplant were conducted. The first experiment (enhanced burndown) evaluated herbicides applied preplant (PP) that provided limited or no residual control. The second experiment (burndown plus residual) evaluated herbicides applied PP that provided burndown plus residual control. The second survey had two objectives; this first being to determine the efficacy of all the currently registered postemergence broadleaf herbicides registered for use in Ontario in soybean and the second objective was to determine the lowest effective rate of 2,4-D tank mixed with glyphosate and applied as a preplant burndown for control of glyphosate-resistant giant ragweed in soybean. Field studies were conducted in 2011 and 2012 at six locations for the postemergence broadleaf herbicide experiment and five locations for the 2,4-D dose response experiment with confirmed glyphosate resistant giant ragweed. The field sites were located near Windsor (L2 and L5), LaSalle (L1, L4 and L6) and Amherstburg (L3), Essex County, Ontario. The first series of experiments evaluated the effectiveness of ten postemergence broadleaf herbicide combinations. The second series of experiments, referred to as “dose response” evaluated the biologically effective rate of seven rates of 2,4-D. (2013-11-15)
Subject	Agricultural Sciences
Keyword	Ambrosia trifida L., giant ragweed, Glycine max L., Glyphosate-resistant, herbicide, postemergence, preplant, soybean
Related Publication	Follings, Joanna. 2013. Control and Distribution of Glyphosate Resistant Giant Ragweed in Ontario. M.Sc. in Plant Agriculture. University of Guelph.
License/Data Use Agreement	Custom Dataset Terms

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	1 to 10 of 40 Files	Original Format Archival Format (.tab)
	FCWM_GRGR_JF_POST_24D_CodeBook_2011.pdf Adobe PDF - 267.2 KB Published Nov 26, 2013 11 Downloads MD5: 2a5215e5843eb76c517d66c9bdc313a3 2011 Biologically Effective Rate of 2,4-D Trials - Codebook. This codebook provides an explanation of variables and codes found in all of the files relating to the 2011 Postemergence Biologically Effective Rate of 2,4-D (Dose Response) Trials. Postemergence Herbicide Experiment	Preview "FCWM_GRGR_JF_POST_24D_CodeBook_2011.pdf" Access File File Access Public Download Options Adobe PDF Download Metadata Data File Citation EndNote XML RIS BibTeX
	FCWM_GRGR_JF_POST_24D_CodeBook_2012.pdf Adobe PDF - 298.2 KB Published Nov 26, 2013 4 Downloads MD5: 57fa904fd8323db025289bce93e0314d 2012 Biologically Effective Rate of 2,4-D Trials - Codebook. This codebook provides an explanation of variables and codes found in all of the files relating to the 2012 Postemergence Biologically Effective Rate of 2,4-D (Dose Response) Trials. Postemergence Herbicide Experiment	Preview "FCWM_GRGR_JF_POST_24D_CodeBook_2012.pdf" Access File File Access Public Download Options Adobe PDF Download Metadata Data File Citation EndNote XML RIS BibTeX
	FCWM_GRGR_JF_POST_24D_GR_YLD_2011.tab Tabular Data - 11.7 KB Published Nov 26, 2013 49 Downloads 12 Variables, 144 Observations UNF:5:LQDmDGamECoYi2YX9m1bGQ== 2011 Biologically Effective Rate of 2,4-D Trials - Giant Ragweed Yield Data Postemergence Herbicide Experiment	Access File File Access Public Download Options CSV (w/SPSS card) (Original File Format) Tab-Delimited RData Download Metadata Variable Metadata Data File Citation EndNote XML RIS BibTeX Explore Options Data Explorer
	FCWM_GRGR_JF_POST_24D_GR_YLD_2012.tab Tabular Data - 15.3 KB Published Nov 26, 2013 51 Downloads 8 Variables, 216 Observations UNF:5:Ew31HsqZV7fjXUkZyrr0Tg== 2012 Biologically Effective Rate of 2,4-D Trials - Giant Ragweed Yield Data Postemergence Herbicide Experiment	Access File File Access Public Download Options CSV (w/SPSS card) (Original File Format) Tab-Delimited RData Download Metadata Variable Metadata Data File Citation EndNote XML RIS BibTeX Explore Options Data Explorer
	FCWM_GRGR_JF_POST_24D_RESPONSE_2011.tab Tabular Data - 19.7 KB Published Nov 26, 2013 51 Downloads 12 Variables, 324 Observations UNF:5:s7z4yk6Nnu59PEa4iaupww== 2011 Biologically Effective Rate of 2,4-D Trials - Response Data Postemergence Herbicide Experiment	Access File File Access Public Download Options CSV (w/SPSS card) (Original File Format) Tab-Delimited RData Download Metadata Variable Metadata Data File Citation EndNote XML RIS BibTeX Explore Options Data Explorer
	FCWM_GRGR_JF_POST_24D_RESPONSE_2012.tab Tabular Data - 24.9 KB Published Nov 26, 2013 51 Downloads 8 Variables, 504 Observations UNF:5:5JwXkwfeeXp1uHHTVUQqrw== 2012 Biologically Effective Rate of 2,4-D Trials - Response Data Postemergence Herbicide Experiment	Access File File Access Public Download Options CSV (w/SPSS card) (Original File Format) Tab-Delimited RData Download Metadata Variable Metadata Data File Citation EndNote XML RIS BibTeX Explore Options Data Explorer
	FCWM_GRGR_JF_POST_24D_SITEDESCRIP_2011.tab Tabular Data - 867 B Published Nov 26, 2013 51 Downloads 56 Variables, 2 Observations UNF:5:SyUCb4V4pKg2zVKiU995xQ== 2011 Biologically Effective Rate of 2,4-D Trials - Site Description Postemergence Herbicide Experiment	Access File File Access Public Download Options CSV (w/SPSS card) (Original File Format) Tab-Delimited RData Download Metadata Variable Metadata Data File Citation EndNote XML RIS BibTeX Explore Options Data Explorer
	FCWM_GRGR_JF_POST_24D_SITEDESCRIP_2012.tab Tabular Data - 1.4 KB Published Nov 26, 2013 51 Downloads 62 Variables, 3 Observations UNF:5:MJ5VhcJqa4OHZQDBaefWQw== 2012 Biologically Effective Rate of 2,4-D Trials - Site Description Postemergence Herbicide Experiment	Access File File Access Public Download Options CSV (w/SPSS card) (Original File Format) Tab-Delimited RData Download Metadata Variable Metadata Data File Citation EndNote XML RIS BibTeX Explore Options Data Explorer
	FCWM_GRGR_JF_POST_24D_SOY_YLD_2011.tab Tabular Data - 21.7 KB Published Nov 26, 2013 51 Downloads 12 Variables, 288 Observations UNF:5:L5F8RPXTafGBaDgAXDPDUA== 2011 Biologically Effective Rate of 2,4-D Trials - Soybean Yield Data Postemergence Herbicide Experiment	Access File File Access Public Download Options CSV (w/SPSS card) (Original File Format) Tab-Delimited RData Download Metadata Variable Metadata Data File Citation EndNote XML RIS BibTeX Explore Options Data Explorer
	FCWM_GRGR_JF_POST_24D_SOY_YLD_2012.tab Tabular Data - 25.8 KB Published Nov 26, 2013 50 Downloads 8 Variables, 432 Observations UNF:5:KsFppIP2gp5yMSOGAhe2jw== 2012 Biologically Effective Rate of 2,4-D Trials - Soybean Yield Data Postemergence Herbicide Experiment	Access File File Access Public Download Options CSV (w/SPSS card) (Original File Format) Tab-Delimited RData Download Metadata Variable Metadata Data File Citation EndNote XML RIS BibTeX Explore Options Data Explorer

Citation Metadata

Persistent Identifier	hdl:10864/F3FYT
Publication Date	2013-11-27
Title	Control and distribution of glyphosate-resistant giant ragweed in Ontario: Windsor, LaSalle, and Amherstburg, Essex County, Ontario [Canada] 2011 and 2012
Subtitle	Control of Glyphosate Resistant Giant Ragweed in Soybean with Preplant Herbicides; Control of Glyphosate Resistant Giant Ragweed in Soybean with Postermergence Herbicides and 2,4-D Dose Response
Other Identifier	OAERDR_008_E_2011-2012
Author	Follings, Joanna (Department of Plant Agriculture. Ontario Agricultural College. University of Guelph Ridgetown Campus) Sikkema, Peter (Department of Plant Agriculture. Ontario Agricultural College. University of Guelph Ridgetown Campus)
Point of Contact	Use email button above to contact. Kramer, Chris (Department of Plant Agriculture. Ontario Agricultural College. University of Guelph Ridgetown Campus.)
Description	This dataset is comprised of two surveys examining the control of glyphosate resistant giant ragweed in soybean with 1) preplant herbicides and 2) postemergence herbicides and 2,4-D dose response. The objective of the first survey was to determine effective control options for glyphosate resistant giant ragweed in soybean with herbicides applied preplant. Eighteen herbicide combinations were evaluated in field studies conducted in 2011 and 2012 at five locations with confirmed glyphosate resistant giant ragweed. The field sites were located near Windsor (L2 and L5), LaSalle (L1 and L4) and Amherstburg (L3), Essex County, Ontario. Two sets of experiments evaluating the effectiveness of glyphosate tankmixes with herbicides applied preplant were conducted. The first experiment (enhanced burndown) evaluated herbicides applied preplant (PP) that provided limited or no residual control. The second experiment (burndown plus residual) evaluated herbicides applied PP that provided burndown plus residual control. The second survey had two objectives; this first being to determine the efficacy of all the currently registered postemergence broadleaf herbicides registered for use in Ontario in soybean and the second objective was to determine the lowest effective rate of 2,4-D tank mixed with glyphosate and applied as a preplant burndown for control of glyphosate-resistant giant ragweed in soybean. Field studies were conducted in 2011 and 2012 at six locations for the postemergence broadleaf herbicide experiment and five locations for the 2,4-D dose response experiment with confirmed glyphosate resistant giant ragweed. The field sites were located near Windsor (L2 and L5), LaSalle (L1, L4 and L6) and Amherstburg (L3), Essex County, Ontario. The first series of experiments evaluated the effectiveness of ten postemergence broadleaf herbicide combinations. The second series of experiments, referred to as “dose response” evaluated the biologically effective rate of seven rates of 2,4-D. (2013-11-15)
Subject	Agricultural Sciences
Keyword	Ambrosia trifida L. giant ragweed Glycine max L. Glyphosate-resistant herbicide postemergence preplant soybean
Topic Classification	Agriculture (LOC Subject Headings) http://www.loc.gov/catdir/cpso/lcco/ Plant Culture (LOC Subject Headings) http://www.loc.gov/catdir/cpso/lcco/ Pests and Diseases (LOC Subject Headings) http://www.loc.gov/catdir/cpso/lcco/ Weeds, parasitic plants (LOC Subject Headings) http://www.loc.gov/catdir/cpso/lcco/
Related Publication	Follings, Joanna. 2013. Control and Distribution of Glyphosate Resistant Giant Ragweed in Ontario. M.Sc. in Plant Agriculture. University of Guelph. http://hdl.handle.net/10214/7236 Follings, J. , Soltani, N. , Robinson, D. , Tardif, F. , Lawton, M. and Sikkema, P. 2013. Control of glyphosate resistant giant ragweed in soybean with preplant herbicides. Agricultural Sciences, 4, 195-205. doi: 10.4236/as.2013.44028 http://dx.doi.org/10.4236/as.2013.44028
Language	English
Producer	Follings, Joanna (Department of Plant Agriculture. Ontario Agricultural College. University of Guelph Ridgetown Campus) Sikkema, Peter (Department of Plant Agriculture. Ontario Agricultural College. University of Guelph Ridgetown Campus)
Production Date	2012
Production Location	Department of Plant Agriculture. Ontario Agricultural College. University of Guelph Ridgetown Campus
Funding Information	Monsanto Canada Inc. The Grain Farmers of Ontario The Agricultural Adaptation Council
Distributor	Agri-environmental Research Data Repository (University of Guelph) (AERDR)
Depositor	Kramer, Chris
Deposit Date	2013-10-30
Time Period	Start Date: 2011 ; End Date: 2012
Date of Collection	Start Date: 2011 ; End Date: 2012
Data Type	Experimental
Series	Field Crop Weed Management: University of Guelph Ridgetown Campus Field Crop Weed Management research program is focused on addressing current weed management problems on the farm in corn, soybeans, wheat and edible beans.
Software	SAS, Version: 9.1 ARM, Gylling Data Management Inc. (GDM)

Geospatial Metadata

Geographic Coverage	Canada Ontario Amherstburg LaSalle Windsor

Social Science and Humanities Metadata

Unit of Analysis	Geographical Unit
Universe	Experimental plots on farms in Amherstburg, LaSalle and Windsor, Ontario, Canada.
Time Method	TimeSeries
Data Collector	Follings, Joanna
Frequency	Annual; Two-year period; Measurements taken 1, 2, 4, and 8 weeks after herbicide application
Sampling Procedure	Experiments were set up in a randomized complete block design with four replications. Each plot was 8 m long and 2.5 m wide. The herbicide rates used were the maximum labeled rate registered for use in Ontario. A weedy and weed-free check was included in each experiment. All weed-free check plots were maintained with 2,4-D ester (500 g a.e. ha-1) plus glyphosate (900 g a.e. ha-1) applied preplant and subsequent hand hoeing as required. Herbicide treatments were applied with a CO2-pressurized backpack sprayer equipped with ULD 120-02 flat fan nozzles (Hypro, New Brighton, MN) calibrated to deliver 200 L ha-1 of water at 210 kPa. Herbicide treatments were applied with a 1.5 meter boom with four nozzles spaced 50 cm apart over the centre of the plot. Herbicide treatments were applied when giant ragweed reached 15 cm in height. A description of the herbicide types and application rates can be found in the Codebook for the corresponding survey. For the preplant survey, percent weed control was rated 1, 2 and 4 WAA and 1, 2, 4 and 8 WAA in the enhanced burndown and burndown plus residual experiments, respectively. For the postemergence and 2,4-D dose response survey, weed control was rated visually 1, 2, 4 and 8 WAA. Weed control was rated visually on a scale of 0 to 100%, where 0% was no control of giant ragweed compared to the weedy check and 100% was complete control of giant ragweed. At each control rating giant ragweed height and density (plants per two 0.25 m2 quadrats) were recorded. At 4 WAA, giant ragweed density and biomass was determined in each plot by counting giant ragweed plants in two 0.25 m2 quadrats. Giant ragweed plants were cut off at the soil surface from the two quadrats per plot, placed in bags, dried at 60°C to a constant moisture content and the dry weights were recorded. Soybean injury was rated 1, 2, 4 and 8 WAA. Soybean injury was rated visually on a scale of 0 to 100%, where 0% was no soybean injury and 100% was soybean death. At crop maturity, soybeans were hand harvested from 2 m of row from each plot at all locations. Soybeans were threshed in a stationary thresher and the weight and moisture were recorded. Yields were adjusted to 13.5% moisture.
Collection Mode	Physical measurement
Type of Research Instrument	Structured

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Our Community Norms as well as good scientific practices expect that proper credit is given via citation. Please use the data citation shown on the dataset page.

Custom Dataset Terms — the following Custom Dataset Terms have been defined for this dataset.

This dataset is made available with limited information on how it can be used. You may wish to communicate with the Contact(s) specified before use.

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The publishing of analysis and results from research using any of the data products is permitted in research communication such as scholarly papers, journals and the like. The authors of these communications are required to cite the primary investigators, Follings, Joanna et al (2013) as the source of these data, and to indicate that the results or views expressed are those of the author/authorized user and are not those of the primary investigators.

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The original creator of the data, Joanna Follings, Department of Plant Agriculture, Ontario Agricultural College, University of Guelph Ridgetown Campus, Peter Sikkema, Department of Plant Agriculture, Ontario Agricultural College, University of Guelph Ridgetown Campus and Monsanto Canada Inc., the Grain Farmers of Ontario and the Agricultural Adaptation Council bear no responsibility for uses of this data set or for interpretations or inferences upon such uses.

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License/Data Use Agreement

Our Community Norms as well as good scientific practices expect that proper credit is given via citation. Please use the data citation shown on the dataset page.

Custom terms specific to this dataset Custom Dataset Terms — the following Custom Dataset Terms have been defined for this dataset.

Terms of Use This dataset is made available with limited information on how it can be used. You may wish to communicate with the Contact(s) specified before use.

Citation Requirements The publishing of analysis and results from research using any of the data products is permitted in research communication such as scholarly papers, journals and the like. The authors of these communications are required to cite the primary investigators, Follings, Joanna et al (2013) as the source of these data, and to indicate that the results or views expressed are those of the author/authorized user and are not those of the primary investigators.

Disclaimer The original creator of the data, Joanna Follings, Department of Plant Agriculture, Ontario Agricultural College, University of Guelph Ridgetown Campus, Peter Sikkema, Department of Plant Agriculture, Ontario Agricultural College, University of Guelph Ridgetown Campus and Monsanto Canada Inc., the Grain Farmers of Ontario and the Agricultural Adaptation Council bear no responsibility for uses of this data set or for interpretations or inferences upon such uses.

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