Abstract
Field experiments were conducted in 1999, 2000, and 2001 to investigate PRE and POST applications of halosulfuron-methyl in combination with clomazone plus ethalfluralin for control of sedge and smooth pigweed in summer squash. Halosulfuron was applied PRE or POST to summer squash at 9, 18, or 27 g ai/ha in combination with a PRE application of clomazone at 175 g ai/ha plus ethalfluralin at 630 g ai/ha. Smooth pigweed control by addition of halosulfuron at 18 and 27 g/ha in combination with clomazone plus ethalfluralin PRE was greater than 89% independent of application method. Yellow nutsedge control was greater than 83% with POST applications of halosulfuron at 18 and 27 g/ha in combination with clomazone plus ethalfluralin PRE. Yellow nutsedge control was greater than 60% from all POST halosulfuron applications at 9, 18, or 27 g/ha in the greenhouse. In a separate field study without ethalfluralin PRE, rice flatsedge control was more than 85% from halosulfuron applied POST at 18 and 27 g/ha. Yellow summer squash and zucchini squash were injured as much as 52 and 47%, respectively, from inclusion of halosulfuron PRE or POST at 27 g/ha in treatments. Summer squash yields were generally not affected by halosulfuron rate, and were comparable to or higher than summer squash treated by only the mixture of clomazone plus ethalfluralin. In these studies, summer squash were injured by halosulfuron applied at 9 to 27 g/ha PRE or POST, yet rapidly recovered, making this herbicide acceptable for use in combination with clomazone and ethalfluralin for controlling several common weed species.
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Claims 9
Claim · model-written summary
The combination controlled smooth pigweed by more than 89%.
- Treatment
- halosulfuron at 18 and 27 g/ha in combination with clomazone plus ethalfluralin PREe0
- Interactor
- Smooth pigweed
Amaranthus hybriduse0weed - Outcome
- Smooth pigweed controle0
- Direction
- greater thane0
- Value
- 89%e0
Not reportedTaxonComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Smooth pigweed control by addition of halosulfuron at 18 and 27 g/ha in combination with clomazone plus ethalfluralin PRE was greater than 89% independent of application method”
Claim · model-written summary
POST halosulfuron combination controlled yellow nutsedge by more than 83%.
- Treatment
- POST applications of halosulfuron at 18 and 27 g/ha in combination with clomazone plus ethalfluralin PREe0
- Interactor
- Yellow nutsedgee0weed
- Outcome
- Yellow nutsedge controle0
- Direction
- greater thane0
- Value
- 83%e0
Not reportedTaxonComparator
Verbatim
e0“Yellow nutsedge control was greater than 83% with POST applications of halosulfuron at 18 and 27 g/ha in combination with clomazone plus ethalfluralin PRE”
Claim · model-written summary
POST halosulfuron controlled yellow nutsedge by more than 60% in greenhouse.
- Treatment
- POST halosulfuron applications at 9, 18, or 27 g/hae0
- Interactor
- Yellow nutsedgee0weed
- Outcome
- Yellow nutsedge controle0
- Direction
- greater thane0
- Value
- 60%e0
- Setting
- greenhousee0
Not reportedTaxonComparator
Verbatim
e0“Yellow nutsedge control was greater than 60% from all POST halosulfuron applications at 9, 18, or 27 g/ha in the greenhouse”
Claim · model-written summary
POST halosulfuron controlled rice flatsedge by over 85%.
- Treatment
- halosulfuron applied POST at 18 and 27 g/hae0
- Interactor
- rice flatsedgee0weed
- Outcome
- rice flatsedge controle0
- Direction
- more thane0
- Value
- 85%e0
Not reportedTaxonComparator
Verbatim
e0“rice flatsedge control was more than 85% from halosulfuron applied POST at 18 and 27 g/ha”
Claim · model-written summary
Halosulfuron injured yellow summer squash by as much as 52%.
- Taxon
- Yellow summer squashe0
- Treatment
- halosulfuron PRE or POST at 27 g/hae0
- Outcome
- injurede0
- Direction
- injurede0
- Value
- 52e0
Not reportedComparator
Verbatim
e0“Yellow summer squash and zucchini squash were injured as much as 52 and 47%, respectively, from inclusion of halosulfuron PRE or POST at 27 g/ha in treatments”
Claim · model-written summary
Halosulfuron injured zucchini squash by as much as 47%.
- Taxon
- zucchini squashe0
- Treatment
- halosulfuron PRE or POST at 27 g/hae0
- Outcome
- injurede0
- Direction
- injurede0
- Value
- 47%e0
Not reportedComparator
Verbatim
e0“Yellow summer squash and zucchini squash were injured as much as 52 and 47%, respectively, from inclusion of halosulfuron PRE or POST at 27 g/ha in treatments”
Claim · model-written summary
Summer squash yields were generally unaffected by halosulfuron rate.
Not reportedComparator
Verbatim
e0“Summer squash yields were generally not affected by halosulfuron rate”
Claim · model-written summary
Treated summer squash yields were comparable to or higher than the mixture alone.
Verbatim
e0“Summer squash yields were generally not affected by halosulfuron rate, and were comparable to or higher than summer squash treated by only the mixture of clomazone plus ethalfluralin”
Claim · model-written summary
The authors consider halosulfuron acceptable with clomazone and ethalfluralin for weed control.
- Outcome
- acceptable for use in combination with clomazone and ethalfluralin for controlling several common weed speciese0
Not reportedTaxon
Verbatim
e0“making this herbicide acceptable for use in combination with clomazone and ethalfluralin for controlling several common weed species”
The same questions in other papers
Halosulfuron-methyl · yield · Cucurbita (pumpkins)Results differ
2 papers in the same direction as this paper · 4 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- negative
4 papers more in this group
See all 8 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.