Abstract
Saflufenacil (BAS 800H) is a new herbicide being developed by BASF for PRE broadleaf weed control in corn. Field studies were conducted at two Ontario locations in 2006 and 2007 to evaluate the tolerance of field corn to PRE and POST (spike and two- to three-leaf corn) applications of saflufenacil at 50, 100, and 200 g ai/ha with and without an adjuvant (surfactant blend + solvent [petroleum hydrocarbons]; 1% v/v). Saflufenacil applied PRE reduced corn height by as much as 12% with the highest rate of 200 g/ha; however, corn yield was not affected. When saflufenacil was applied without an adjuvant to corn at the spike stage, injury was as much as 12%, 7 d after treatment (DAT). However, corn height and yield were not affected. Saflufenacil applied POST to two- to three-leaf corn at 50 to 200 g/ha without an adjuvant resulted in as much as 25% injury and reduced corn height 31% but did not affect yield. Adding an adjuvant to POST applications of saflufenacil caused as much as 4 and 99% injury, reduced corn height 13 and 77%, and reduced corn yield 0 and 59% when applied to corn at the spike and at the two- to three-leaf stages, respectively. Based on these results, saflufenacil applied PRE can be safely used in corn at rates up to 200 g/ha. Saflufenacil applied to corn at the spike and two- to three-leaf stage at 50 or 100 g/ha without an adjuvant demonstrated acceptable corn tolerance and may allow for the use of saflufenacil beyond the proposed PRE use pattern. In contrast, applying saflufenacil POST with an adjuvant to spike and two- to three-leaf stage corn resulted in unacceptable injury and yield losses in field corn.
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Claims 16
Claim · model-written summary
PRE saflufenacil at 200 g/ha reduced corn height by up to 12%.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- Saflufenacil applied PREe0
- Outcome
- corn heighte0
- Direction
- reducede0
- Value
- 12%e0
- Qualifier
- 200 g/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Saflufenacil applied PRE reduced corn height by as much as 12% with the highest rate of 200 g/ha”
Claim · model-written summary
PRE saflufenacil did not affect corn yield.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- Saflufenacilt0
- Outcome
- corn yielde0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“corn yield was not affected”
t0“Saflufenacil”
Claim · model-written summary
Saflufenacil without adjuvant at the spike stage caused up to 12% injury at 7 DAT.
- Taxon
- cornZea mays subsp. mayse0
- Organ / stage
- spike stagee0
- Treatment
- saflufenacil was applied without an adjuvante0
- Outcome
- injurye0
- Value
- 12%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When saflufenacil was applied without an adjuvant to corn at the spike stage, injury was as much as 12%, 7 d after treatment (DAT)”
Claim · model-written summary
At the spike stage without adjuvant, corn height and yield were unaffected.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- Saflufenacilt0
- Outcome
- corn height and yielde0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, corn height and yield were not affected”
t0“Saflufenacil”
Claim · model-written summary
POST saflufenacil without adjuvant injured two- to three-leaf corn by up to 25%.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- Saflufenacil applied POST to two- to three-leaf corn at 50 to 200 g/ha without an adjuvante0
- Outcome
- injurye0
- Value
- 25%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Saflufenacil applied POST to two- to three-leaf corn at 50 to 200 g/ha without an adjuvant resulted in as much as 25% injury”
Claim · model-written summary
The same POST treatment reduced corn height by 31%.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- Saflufenacilt0
- Outcome
- corn heighte0
- Direction
- reducede0
- Value
- 31%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced corn height 31% but did not affect yield”
t0“Saflufenacil”
Claim · model-written summary
The same POST treatment did not affect yield.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- Saflufenacilt0
- Outcome
- yielde0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced corn height 31% but did not affect yield”
t0“Corn to Preemergence and Postemergence Applications of Saflufenacil”
Claim · model-written summary
POST saflufenacil with adjuvant caused up to 4% injury at spike stage.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- Adding an adjuvant to POST applications of saflufenacile0
- Outcome
- injurye0
- Value
- 4e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Adding an adjuvant to POST applications of saflufenacil caused as much as 4 and 99% injury”
t0“Corn”
Claim · model-written summary
POST saflufenacil with adjuvant caused up to 99% injury at two- to three-leaf stage.
- Taxon
- cornZea mays subsp. mayst0
- Treatment
- Adding an adjuvant to POST applications of saflufenacile0
- Outcome
- injurye0
- Value
- 99%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Adding an adjuvant to POST applications of saflufenacil caused as much as 4 and 99% injury”
t0“Corn”
Claim · model-written summary
With adjuvant, POST treatment reduced corn height by 13% at spike stage.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- saflufenacilt0
- Outcome
- corn heighte0
- Direction
- reducede0
- Value
- 13e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced corn height 13 and 77%”
t0“Saflufenacil”
Claim · model-written summary
With adjuvant, POST treatment reduced corn height by 77% at two- to three-leaf stage.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- saflufenacilt0
- Outcome
- corn heighte0
- Direction
- reducede0
- Value
- 77%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced corn height 13 and 77%”
t0“Saflufenacil”
Claim · model-written summary
With adjuvant, spike-stage POST treatment reduced corn yield by 0%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced corn yield 0 and 59%”
t0“Saflufenacil”
Claim · model-written summary
With adjuvant, two- to three-leaf POST treatment reduced corn yield by 59%.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- saflufenacilt0
- Outcome
- corn yielde0
- Direction
- reducede0
- Value
- 59%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced corn yield 0 and 59%”
t0“Saflufenacil”
Claim · model-written summary
PRE saflufenacil up to 200 g/ha was considered safe for corn.
- Taxon
- cornZea mays subsp. mayse0
- Outcome
- saflufenacil applied PRE can be safely used in corn at rates up to 200 g/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“saflufenacil applied PRE can be safely used in corn at rates up to 200 g/ha”
Claim · model-written summary
Spike- and two- to three-leaf applications at 50 or 100 g/ha without adjuvant were considered acceptably tolerated.
- Taxon
- cornZea mays subsp. mayse0
- Outcome
- acceptable corn tolerancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Saflufenacil applied to corn at the spike and two- to three-leaf stage at 50 or 100 g/ha without an adjuvant demonstrated acceptable corn tolerance”
Claim · model-written summary
POST saflufenacil with adjuvant was considered unacceptably injurious and yield-reducing.
- Taxon
- cornZea mays subsp. mayse0
- Outcome
- unacceptable injury and yield lossese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applying saflufenacil POST with an adjuvant to spike and two- to three-leaf stage corn resulted in unacceptable injury and yield losses in field corn”
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See all 9 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.