Abstract
There is limited information on weed control with glyphosate plus mesotrione or saflufenacil when applied prior to seeding winter wheat in the autumn. A total of 12 field trials (six for each herbicide tankmix) were conducted over a three-year (2010-2012) at two locations (Ridgetown and Exeter, Ontario) to evaluate the effect of glyphosate plus mesotrione or saflufenacil at various rates for broadleaf weed control and red clover establishment in winter wheat. Glyphosate (900 g ae ha-1) and tankmixes of glyphosate (900 g ae ha-1) plus mesotrione or saflufenacil at 12.5, 25, 50, 75, 100, 150 and 200 g ai ha-1 applied preplant (PP) in the autumn resulted in minimal visible injury (0% - 2%) in the autumn and on May 1 and June 1 of the following spring in winter wheat. The PP application of glyphosate alone or in combination with mesotrione or saflufenacil provided only 1% - 30% control of common ragweed in the following spring. The PP application of glyphosate in combination with mesotrione or saflufenacil provided 74% - 100% control of wild mustard at 2 and 4 weeks after emergence (WAE) in autumn but the control was only 0% - 35% on June 1 of the following spring. Glyphosate plus mesotrione or saflufenacil did not have any effect on seed moisture content and yield of winter wheat compared to glyphosate alone. Clover establishment was reduced with glyphosate plus mesotrione at the two highest rates but was not affected with glyphosate plus saflufenacil compared to glyphosate alone. Based on these results, glyphosate alone and in combination with mesotrione or saflufenacil applied PP in the autumn at rates evaluated did not provide adequate residual control of common ragweed, common lambsquarters and wild mustard in the spring of the following year in winter wheat.
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Claims 11
Claim · model-written summary
Preplant glyphosate alone caused minimal visible winter wheat injury of 0% - 2%.
- Taxon
- winter wheat
Triticum aestivume0 - Treatment
- Glyphosate (900 g ae ha-1)e0
- Outcome
- visible injurye0
- Direction
- minimale0
- Value
- 0% - 2%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glyphosate (900 g ae ha-1) and tankmixes of glyphosate (900 g ae ha-1) plus mesotrione or saflufenacil at 12.5, 25, 50, 75, 100, 150 and 200 g ai ha-1 applied preplant (PP) in the autumn resulted in minimal visible injury (0% - 2%) in the autumn and on May 1 and June 1 of the following spring in winter wheat.”
Claim · model-written summary
Glyphosate plus mesotrione caused minimal visible winter wheat injury of 0% - 2%.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- glyphosate (900 g ae ha-1) plus mesotrionee0
- Outcome
- visible injurye0
- Direction
- minimale0
- Value
- 0% - 2%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glyphosate (900 g ae ha-1) and tankmixes of glyphosate (900 g ae ha-1) plus mesotrione or saflufenacil at 12.5, 25, 50, 75, 100, 150 and 200 g ai ha-1 applied preplant (PP) in the autumn resulted in minimal visible injury (0% - 2%) in the autumn and on May 1 and June 1 of the following spring in winter wheat.”
Claim · model-written summary
Glyphosate plus saflufenacil caused minimal visible winter wheat injury of 0% - 2%.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- glyphosate (900 g ae ha-1) plus mesotrione or saflufenacile0
- Outcome
- visible injurye0
- Direction
- minimale0
- Value
- 0% - 2%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glyphosate (900 g ae ha-1) and tankmixes of glyphosate (900 g ae ha-1) plus mesotrione or saflufenacil at 12.5, 25, 50, 75, 100, 150 and 200 g ai ha-1 applied preplant (PP) in the autumn resulted in minimal visible injury (0% - 2%) in the autumn and on May 1 and June 1 of the following spring in winter wheat.”
Claim · model-written summary
Preplant glyphosate alone provided 1% - 30% spring common ragweed control.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- glyphosate alonee0
- Interactor
- common ragweed
Ambrosia artemisiifoliae0weed - Outcome
- control of common ragweede0
- Direction
- onlye0
- Value
- 1% - 30%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The PP application of glyphosate alone or in combination with mesotrione or saflufenacil provided only 1% - 30% control of common ragweed in the following spring.”
t0“Winter Wheat”
Claim · model-written summary
Preplant glyphosate with mesotrione or saflufenacil provided only 1% - 30% spring common ragweed control.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- glyphosate alone or in combination with mesotrione or saflufenacile0
- Interactor
- common ragweedAmbrosia artemisiifoliae0weed
- Outcome
- control of common ragweede0
- Direction
- onlye0
- Value
- 1% - 30%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The PP application of glyphosate alone or in combination with mesotrione or saflufenacil provided only 1% - 30% control of common ragweed in the following spring.”
t0“Winter Wheat”
Claim · model-written summary
The glyphosate tank mixes controlled wild mustard 74% - 100% in autumn.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- glyphosate in combination with mesotrione or saflufenacile0
- Interactor
- wild mustarde0weed
- Outcome
- control of wild mustarde0
- Value
- 74% - 100%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The PP application of glyphosate in combination with mesotrione or saflufenacil provided 74% - 100% control of wild mustard at 2 and 4 weeks after emergence (WAE) in autumn”
t0“Winter Wheat”
Claim · model-written summary
Wild mustard control with the tank mixes dropped to 0% - 35% the next spring.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- glyphosate in combination with mesotrione or saflufenacile1
- Interactor
- wild mustarde1weed
- Outcome
- controle0
- Direction
- onlye0
- Value
- 0% - 35%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the control was only 0% - 35% on June 1 of the following spring.”
e1“glyphosate in combination with mesotrione or saflufenacil provided 74% - 100% control of wild mustard”
t0“Winter Wheat”
Claim · model-written summary
Neither tank mix changed wheat seed moisture content or yield relative to glyphosate alone.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- Glyphosate plus mesotrione or saflufenacile0
- Outcome
- seed moisture content and yielde0
- Direction
- did not have any effecte0
- Comparator
- glyphosate alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glyphosate plus mesotrione or saflufenacil did not have any effect on seed moisture content and yield of winter wheat compared to glyphosate alone.”
Claim · model-written summary
High rate glyphosate plus mesotrione reduced clover establishment.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- glyphosate plus mesotrione at the two highest ratese0
- Outcome
- Clover establishmente0
- Direction
- reducede0
- Comparator
- glyphosate alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Clover establishment was reduced with glyphosate plus mesotrione at the two highest rates but was not affected with glyphosate plus saflufenacil compared to glyphosate alone.”
t0“Winter Wheat”
Claim · model-written summary
Glyphosate plus saflufenacil did not affect clover establishment relative to glyphosate alone.
- Taxon
- winter wheatTriticum aestivumt0
- Treatment
- glyphosate plus saflufenacile0
- Outcome
- Clover establishmente0
- Direction
- not affectede0
- Comparator
- glyphosate alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Clover establishment was reduced with glyphosate plus mesotrione at the two highest rates but was not affected with glyphosate plus saflufenacil compared to glyphosate alone.”
t0“Winter Wheat”
Claim · model-written summary
The evaluated autumn preplant treatments did not provide adequate spring residual weed control.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- glyphosate alone and in combination with mesotrione or saflufenacile0
- Outcome
- did not provide adequate residual control of common ragweed, common lambsquarters and wild mustarde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“glyphosate alone and in combination with mesotrione or saflufenacil applied PP in the autumn at rates evaluated did not provide adequate residual control of common ragweed, common lambsquarters and wild mustard in the spring of the following year in winter wheat.”
The same questions in other papers
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8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.