Abstract
Abstract Common cattail is a perennial weed that naturally occurs in wet or saturated soils, such as in marshes, lakes, ponds, irrigation and drainage canals, and streams, throughout North America. Recently, common cattail has become an important problem for the drill-seeded rice systems in the Sacramento–San Joaquin River Delta of northern California. This research was conducted in 2022 and 2023 at three sites near Stockton, CA, to evaluate the efficacy of florpyrauxifen-benzyl, a newly registered auxin-mimic herbicide, to control common cattail in drill-seeded rice. Florpyrauxifen-benzyl was applied alone at 40 g ai ha –1 and 80 g ha –1 on 0- to 1-m-tall and 1- to 2-m-tall common cattail and in a sequential application of florpyrauxifen-benzyl at 40 g ha –1 followed by 40 g ha –1 between 14-d intervals on 0- to 1-m-tall and 1- to 2-m-tall common cattail. Triclopyr, another auxin-mimic rice herbicide widely used in California, was applied alone at 420 g ae ha –1 on 0- to 1-m-tall common cattail for comparison. Triclopyr was also applied in combination with florpyrauxifen-benzyl at 40 g ha –1 at the 0- to 1-m growth stage. The injury symptoms on common cattail started within 3 d after treatment (DAT) for the florpyrauxifen-benzyl + triclopyr mixture treatment and within 7 DAT for all other florpyrauxifen-benzyl applied treatments. All florpyrauxifen-benzyl treatments controlled 100% of common cattail at 28 DAT regardless of application rate and timing. Common cattail height and dry biomass at 28 DAT were lower for all treatments compared to the nontreated control. While the common cattail control was excellent for all florpyrauxifen-benzyl applications, rice injury was minimal. This research indicates that common cattail up to 2 m tall can be effectively and rapidly controlled in rice fields with florpyrauxifen-benzyl at 40 g ha –1 .
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Claims 7
Claim · model-written summary
The florpyrauxifen-benzyl plus triclopyr mixture produced cattail injury within 3 days.
- Taxon
- rice
Oryza sativat0 - Treatment
- florpyrauxifen-benzyl + triclopyr mixture treatmente0
- Interactor
- common cattail
Typha latifoliae0weed - Outcome
- injury symptoms on common cattaile0
- Value
- 3 de0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The injury symptoms on common cattail started within 3 d after treatment (DAT) for the florpyrauxifen-benzyl + triclopyr mixture treatment”
t0“rice fields”
Claim · model-written summary
Other florpyrauxifen-benzyl treatments produced cattail injury within 7 days.
- Taxon
- riceOryza sativat0
- Treatment
- florpyrauxifen-benzyl applied treatmentse0
- Interactor
- common cattailTypha latifoliat0weed
- Outcome
- common cattailt0
- Value
- 7 DATe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“within 7 DAT for all other florpyrauxifen-benzyl applied treatments.”
t0“Management of common cattail (Typha latifolia) with florpyrauxifen-benzyl in rice fields”
Claim · model-written summary
Every florpyrauxifen-benzyl treatment achieved 100% cattail control by 28 days.
- Taxon
- riceOryza sativat0
- Treatment
- florpyrauxifen-benzyl treatmentse0
- Interactor
- common cattailTypha latifoliae0weed
- Outcome
- common cattaile0
- Direction
- controllede0
- Value
- 100%e0
- Qualifier
- at 28 DAT regardless of application rate and timinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All florpyrauxifen-benzyl treatments controlled 100% of common cattail at 28 DAT regardless of application rate and timing.”
t0“rice fields”
Claim · model-written summary
All treatments lowered cattail height relative to nontreated controls.
- Taxon
- riceOryza sativat0
- Treatment
- all treatmentse0
- Interactor
- Common cattailTypha latifoliae0weed
- Outcome
- Common cattail heighte0
- Direction
- lowere0
- Comparator
- nontreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Common cattail height and dry biomass at 28 DAT were lower for all treatments compared to the nontreated control.”
t0“rice fields”
Claim · model-written summary
All treatments lowered cattail dry biomass relative to nontreated controls.
- Taxon
- riceOryza sativat0
- Treatment
- all treatmentse0
- Interactor
- Common cattailTypha latifoliae0weed
- Outcome
- dry biomasse0
- Direction
- lowere0
- Comparator
- nontreated controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Common cattail height and dry biomass at 28 DAT were lower for all treatments compared to the nontreated control.”
t0“rice fields”
Claim · model-written summary
Florpyrauxifen-benzyl applications caused minimal rice injury.
- Taxon
- riceOryza sativae0
- Treatment
- florpyrauxifen-benzyl applicationse0
- Outcome
- rice injurye0
- Direction
- minimale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“common cattail control was excellent for all florpyrauxifen-benzyl applications, rice injury was minimal.”
Claim · model-written summary
Florpyrauxifen-benzyl at 40 g per hectare can rapidly control cattail up to 2 m tall in rice fields.
- Taxon
- riceOryza sativae0
- Treatment
- florpyrauxifen-benzyl at 40 g ha –1e0
- Interactor
- common cattailTypha latifoliae0weed
- Outcome
- common cattail up to 2 m tall can be effectively and rapidly controllede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“common cattail up to 2 m tall can be effectively and rapidly controlled in rice fields with florpyrauxifen-benzyl at 40 g ha –1”