Abstract
Field experiments were conducted in 1997 and 1998 near Rossville in northeast Kansas to evaluate control of imazethapyr-resistant common sunflower with selected herbicides in corn and soybean. In soybean, common sunflower control was unacceptable with imazethapyr, chlorimuron, CGA-277476, and cloransulam applied alone. Lactofen or acifluorfen applied with these herbicides slightly improved control, whereas glyphosate applied with them controlled more than 97% of common sunflower. All herbicides reduced common sunflower populations in the corn. The greatest reductions occurred when atrazine was applied with dicamba, 2,4-D, RPA 201772, or CGA-152005 plus primisulfuron. These herbicide combinations also stunted common sunflower that survived treatment. Several herbicide alternatives are available to control imazethapyr-resistant common sunflower in corn. However, glyphosate was the only herbicide that gave adequate control in soybean.Nomenclature: Acifluorfen, 5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acid; atrazine, 6-chloro-N-ethyl-N′-(1-methylethyl)-1,3,5-triazine-2,4-diamine; CGA-152005, 1-(4-methoxy-6-methyl-triazin-2-yl)-3-[2-(3,3,3-trifluoropropyl)-phenylsulfonyl]-urea; CGA-277476, 2-[[[[(4,6-dimethyl-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]benzoic acid,3-oxetanyl-ester; chlorimuron, 2-[[[[(4-chloro-6-methoxy-2-pyrimidinyl)amino] carbonyl]amino]sulfonyl]benzoic acid; cloransulam, 3-chloro-2-[[(5-ethoxy-7-fluoro[1,2,4]triazolo[1,5-c]pyrimidin-2yl)sulfonyl] amino]benzoic acid; 2,4-D, (2,4-dichlorophenoxy)acetic acid; dicamba, 3,6-dichloro-2-methoxybenzoic acid; glyphosate, N-(phosphonomethyl)glycine; imazethapyr, 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5-ethyl-3-pyridinecarboxylic acid; lactofen, (±)-2-ethoxy-1-methyl-2-oxoethyl-5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoate; primisulfuron, 2-[[[[[4,6-bis(difluoromethoxy)-2-pyrimidinyl]amino]carbonyl]amino]sulfonyl]benzoic acid; RPA 201772, 5-cyclopropyl-4-(2-methylsulphonyl-4-trifluoromethyl-benzoyl)isoxazole; common sunflower, Helianthus annuus L.; corn, Zea mays L. ‘Cargill 6997’; soybean, Glycine max (L.) Merr. ‘Stine 3264’.Additional index words: Acifluorfen, atrazine, bromoxynil, CGA-152005, CGA-277476, chlorimuron, clopyralid, cloransulam, 2,4-D, dicamba, flumetsulam, glyphosate, imazethapyr, lactofen, metolachlor, primisulfuron, RPA 201772, rimsulfuron, thifensulfuron.Abbreviations: ALS, acetolactate synthase; DAP, days after planting; DAT, days after treatment.
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Claims 8
Claim · model-written summary
In soybean, control of common sunflower was unacceptable with imazethapyr, chlorimuron, CGA-277476 or cloransulam applied alone.
- Taxon
- Soybean
Glycine maxt0 - Treatment
- imazethapyr, chlorimuron, CGA-277476, and cloransulam applied alonee0
- Interactor
- common sunflower
Helianthus annuuse0weed - Outcome
- common sunflower controle0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean (Glycine max)”
e0“In soybean, common sunflower control was unacceptable with imazethapyr, chlorimuron, CGA-277476, and cloransulam applied alone”
Claim · model-written summary
In soybean, lactofen or acifluorfen applied with the other herbicides slightly improved control of common sunflower.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- Lactofen or acifluorfen applied with these herbicidese0
- Outcome
- controle0
- Direction
- improvede0
- Value
- slightlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean (Glycine max)”
e0“Lactofen or acifluorfen applied with these herbicides slightly improved control”
Claim · model-written summary
In soybean, glyphosate applied with the other herbicides controlled more than 97% of common sunflower.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- glyphosate applied with theme0
- Interactor
- common sunflowerHelianthus annuuse0weed
- Outcome
- controlled more than 97% of common sunflowere0
- Value
- more than 97%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean (Glycine max)”
e0“glyphosate applied with them controlled more than 97% of common sunflower”
Claim · model-written summary
In corn, all tested herbicides reduced common sunflower populations.
- Taxon
- Corn
Zea mays subsp. mayst1 - Treatment
- All herbicidese0
- Interactor
- common sunflowerHelianthus annuuse0weed
- Outcome
- common sunflower populationse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“Corn (Zea mays)”
e0“All herbicides reduced common sunflower populations in the corn”
Claim · model-written summary
In corn, the greatest reductions in common sunflower occurred when atrazine was applied with dicamba, 2,4-D, RPA 201772 or CGA-152005 plus primisulfuron.
- Taxon
- CornZea mays subsp. mayst1
- Treatment
- atrazine was applied with dicamba, 2,4-D, RPA 201772, or CGA-152005 plus primisulfurone0
- Outcome
- reductionse0
- Direction
- greateste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“Corn (Zea mays)”
e0“The greatest reductions occurred when atrazine was applied with dicamba, 2,4-D, RPA 201772, or CGA-152005 plus primisulfuron”
Claim · model-written summary
In corn, the best atrazine combinations also stunted the common sunflower plants that survived treatment.
- Taxon
- CornZea mays subsp. mayst1
- Treatment
- These herbicide combinationse0
- Interactor
- common sunflowerHelianthus annuuse0weed
- Outcome
- stunted common sunflowere0
- Direction
- stuntede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“Corn (Zea mays)”
e0“These herbicide combinations also stunted common sunflower that survived treatment”
Claim · model-written summary
Glyphosate was the only herbicide that gave adequate control of imazethapyr-resistant common sunflower in soybean.
- Taxon
- soybeanGlycine maxe0
- Treatment
- glyphosatee0
- Outcome
- adequate controle0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“glyphosate was the only herbicide that gave adequate control in soybean”
Claim · model-written summary
Several herbicide alternatives are available to control imazethapyr-resistant common sunflower in corn.
- Taxon
- cornZea mays subsp. mayse0
- Interactor
- common sunflowerHelianthus annuuse0weed
- Outcome
- control imazethapyr-resistant common sunflowere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Several herbicide alternatives are available to control imazethapyr-resistant common sunflower in corn”
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See all 123 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.