Abstract
Common bermudagrass often struggles with spring transition, when overseeded the previous fall with turf-type perennial ryegrass. Select herbicides were applied once on an overseeded common bermudagrass baseball field, on either an early May, or late May application in both 2003 and 2004 summer in order to evaluate their performance as an aid in spring transition. The same treatments were applied to the same plots in the two year study. The sulfonyl urea products of Tads or foramsulfuron 'Revolver', rimsulfuron 'Tranxit', trifloxysulfuron 'Monument', caused noticeable necrosis to the perennial ryegrass, which lasted up to 30 days after application, as the common bermudagrass became re-established. The other s.u. product of chlorsulfuron 'Manor', was similar to pronamid 'Kerb', which did not cause as much necrosis as the other products. However, both 'Manor' and 'Kerb' had lesser effects on transition as did the other products. This was generally true in both years. The greatest amounts of necrotic turf (percent plot straw values) occurred 30 days after application, regardless if products were applied the first week in May ('early'), or when applied the last few days of May ('late'). The e herbicide treatment main affect was significant for most turfgrass responses when herbicides were applied 'early'. This was true in both years of the study. In year 1 (2003), the 'late' application of herbicides were less effective in enhancing transition, but in year 2 (2004) the treatment affect was significant for enhancing the removal of ryegrass and enhancing the re-introduction of the underlying bermudagrass. The 'early' application program did allow for a longer bermudagrass summer season, (before the next fall overseeding) , which is deemed helpful in promoting good bermudagrass turf growth before the next overseed season Perennial ryegrass will last long into midsummer, when left untreated.
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Claims 9
Claim · model-written summary
Revolver, Tranxit and Monument caused noticeable ryegrass necrosis for up to 30 days as bermudagrass re-established.
- Taxon
- Common Bermudagrasst0
- Treatment
- Tads or foramsulfuron 'Revolver', rimsulfuron 'Tranxit', trifloxysulfuron 'Monument'e0
- Interactor
- perennial ryegrass
Lolium perennee0weed - Outcome
- necrosis to the perennial ryegrasse0
- Direction
- noticeablee0
- Value
- up to 30 dayse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Common Bermudagrass”
e0“The sulfonyl urea products of Tads or foramsulfuron 'Revolver', rimsulfuron 'Tranxit', trifloxysulfuron 'Monument', caused noticeable necrosis to the perennial ryegrass, which lasted up to 30 days after application, as the common bermudagrass became re-established.”
Claim · model-written summary
Manor and Kerb caused less ryegrass necrosis than other herbicides.
Verbatim
t0“Common Bermudagrass”
e0“The other s.u. product of chlorsulfuron 'Manor', was similar to pronamid 'Kerb', which did not cause as much necrosis as the other products.”
Claim · model-written summary
Manor and Kerb had lesser effects on transition than other products.
Verbatim
t0“Common Bermudagrass”
e0“However, both 'Manor' and 'Kerb' had lesser effects on transition as did the other products.”
Claim · model-written summary
Necrotic turf peaked 30 days after application regardless of early or late May timing.
Verbatim
t0“Common Bermudagrass”
e0“The greatest amounts of necrotic turf (percent plot straw values) occurred 30 days after application, regardless if products were applied the first week in May ('early'), or when applied the last few days of May ('late').”
Claim · model-written summary
Herbicide treatment had a significant effect on most early application turf responses in both years.
Not reportedComparatorDirection
Verbatim
t0“Common Bermudagrass”
e0“The e herbicide treatment main affect was significant for most turfgrass responses when herbicides were applied 'early'. This was true in both years of the study.”
Claim · model-written summary
Late herbicide applications were less effective at enhancing transition in 2003.
- Taxon
- Common Bermudagrasst0
- Treatment
- 'late' application of herbicidese0
- Outcome
- enhancing transitione0
- Direction
- less effectivee0
- Qualifier
- 2003e0
Not reportedComparator
Verbatim
t0“Common Bermudagrass”
e0“In year 1 (2003), the 'late' application of herbicides were less effective in enhancing transition”
Claim · model-written summary
In 2004, herbicide treatment significantly enhanced ryegrass removal and bermudagrass reintroduction.
- Taxon
- Common Bermudagrasst0
- Treatment
- treatmente0
- Outcome
- removal of ryegrass and enhancing the re-introduction of the underlying bermudagrasse0
- Direction
- enhancinge0
LoliumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Common Bermudagrass”
e0“in year 2 (2004) the treatment affect was significant for enhancing the removal of ryegrass and enhancing the re-introduction of the underlying bermudagrass.”
Claim · model-written summary
Early application extended the bermudagrass summer season.
- Taxon
- Common Bermudagrasst0
- Treatment
- 'early' application programe0
- Outcome
- bermudagrass summer seasone0
- Direction
- longere0
Not reportedComparator
Verbatim
t0“Common Bermudagrass”
e0“The 'early' application program did allow for a longer bermudagrass summer season”
Claim · model-written summary
Untreated perennial ryegrass persisted into midsummer.
- Taxon
- Common Bermudagrasst0
- Interactor
- Perennial ryegrassLolium perennee0weed
- Outcome
- Perennial ryegrass will last long into midsummere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Common Bermudagrass”
e0“Perennial ryegrass will last long into midsummer, when left untreated.”
The same questions in other papers
foramsulfuron · Lolium perenne · Cynodon dactylon (Bermuda grass)Results agree
1 paper in the same direction as this paper
- positive
rimsulfuron · Lolium perenne · Cynodon dactylon (Bermuda grass)Results agree
1 paper in the same direction as this paper
- positive
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.