Abstract
The repetitive use of the same herbicide sites of action in U.S. rice has led to the evolution of resistance in several weeds. Growers need to integrate multiple sites of action by mixing herbicides for effective weed control. Benzobicyclon is being developed as a post-flood herbicide for U.S. rice. As a Group 27 herbicide, benzobicyclon will offer a new site of action to rice producers in the U.S. Research was conducted in 2015 and 2016 to evaluate benzobicyclon efficacy based on weed size at application, flood depth, weed spectrum, tank mix with post-flood herbicides, and use rate. The greatest efficacy with benzobicyclon often occurred when applied to small weeds in a 15 cm flood depth. Barnyardgrass control with benzobicyclon was greater at 371 g ha-1 than at 247 g ha-1. Amazon sprangletop and acetolactate synthase-resistant rice flats edge were controlled completely with benzobicyclon at 247 g ha-1 at the early timing at both 5 cm and 15 cm flood depths. The addition of benzobicyclon at 247 g ha-1 to post-flood herbicides generally increased barnyardgrass and sprangletop spp. control. Benzobicyclon at 247 g ha-1 added to halosulfuron at 53 g ha-1 increased barnyardgrass control. The addition of benzobicyclon at 247 g ha-1 to other post-flood herbicides such as halosulfuron at 53 g ha-1, imazamox at 45 g ha-1, and cyhalofop 280 g ha-1 increased red sprangletop and Amazon sprangletop control (>90%). The addition of benzobicyclon to post-flood herbicides will broaden and improve the spectrum of weed control in US rice.
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Claims 10
Claim · model-written summary
Benzobicyclon efficacy was greatest on small weeds under a 15 cm flood.
- Taxon
- Rice
Oryza sativat0 - Treatment
- benzobicyclone0
- Outcome
- efficacye0
- Direction
- greateste0
- Qualifier
- small weeds in a 15 cm flood depthe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The greatest efficacy with benzobicyclon often occurred when applied to small weeds in a 15 cm flood depth”
t0“Rice”
Claim · model-written summary
Barnyardgrass control was greater at 371 than 247 g ha-1.
- Taxon
- RiceOryza sativat0
- Treatment
- benzobicyclone0
- Interactor
- Barnyardgrass
Echinochloa crus-gallie0weed - Outcome
- Barnyardgrass controle0
- Direction
- greatere0
- Value
- 371 g ha-1e0
- Comparator
- 247 g ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Barnyardgrass control with benzobicyclon was greater at 371 g ha-1 than at 247 g ha-1”
t0“Rice”
Claim · model-written summary
Early benzobicyclon completely controlled Amazon sprangletop at 5 and 15 cm flood depths.
- Taxon
- RiceOryza sativat0
- Treatment
- benzobicyclon at 247 g ha-1e0
- Interactor
- Amazon sprangletope0weed
- Outcome
- Amazon sprangletope0
- Direction
- controlled completelye0
- Qualifier
- early timing at both 5 cm and 15 cm flood depthse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Amazon sprangletop and acetolactate synthase-resistant rice flats edge were controlled completely with benzobicyclon at 247 g ha-1 at the early timing at both 5 cm and 15 cm flood depths”
t0“Rice”
Claim · model-written summary
Early benzobicyclon completely controlled resistant rice flats edge at both flood depths.
- Taxon
- RiceOryza sativat0
- Treatment
- benzobicyclon at 247 g ha-1e0
- Interactor
- acetolactate synthase-resistant rice flats edgee0weed
- Outcome
- acetolactate synthase-resistant rice flats edgee0
- Direction
- controlled completelye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Amazon sprangletop and acetolactate synthase-resistant rice flats edge were controlled completely with benzobicyclon at 247 g ha-1 at the early timing at both 5 cm and 15 cm flood depths”
t0“Rice”
Claim · model-written summary
Adding benzobicyclon generally increased barnyardgrass control.
- Taxon
- RiceOryza sativat0
- Treatment
- benzobicyclon at 247 g ha-1e0
- Interactor
- barnyardgrassEchinochloa crus-gallie0weed
- Outcome
- barnyardgrasse0
- Direction
- increasede0
- Comparator
- post-flood herbicidese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition of benzobicyclon at 247 g ha-1 to post-flood herbicides generally increased barnyardgrass and sprangletop spp. control”
t0“Rice”
Claim · model-written summary
Adding benzobicyclon generally increased sprangletop control.
- Taxon
- RiceOryza sativat0
- Treatment
- benzobicyclon at 247 g ha-1e0
- Interactor
- sprangletop spp.e0weed
- Outcome
- sprangletop spp. controle0
- Direction
- increasede0
- Comparator
- post-flood herbicidese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition of benzobicyclon at 247 g ha-1 to post-flood herbicides generally increased barnyardgrass and sprangletop spp. control”
t0“Rice”
Claim · model-written summary
Adding benzobicyclon to halosulfuron increased barnyardgrass control.
- Taxon
- RiceOryza sativat0
- Treatment
- Benzobicyclon at 247 g ha-1 added to halosulfuron at 53 g ha-1e0
- Interactor
- barnyardgrassEchinochloa crus-gallie0weed
- Outcome
- barnyardgrass controle0
- Direction
- increasede0
- Comparator
- halosulfuron at 53 g ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Benzobicyclon at 247 g ha-1 added to halosulfuron at 53 g ha-1 increased barnyardgrass control”
t0“Rice”
Claim · model-written summary
Adding benzobicyclon to other post flood herbicides raised red sprangletop control above 90%.
- Taxon
- RiceOryza sativat0
- Treatment
- benzobicyclon at 247 g ha-1e0
- Interactor
- red sprangletope0weed
- Outcome
- red sprangletope0
- Direction
- increasede0
- Value
- >90%e0
- Comparator
- other post-flood herbicidese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition of benzobicyclon at 247 g ha-1 to other post-flood herbicides such as halosulfuron at 53 g ha-1, imazamox at 45 g ha-1, and cyhalofop 280 g ha-1 increased red sprangletop and Amazon sprangletop control (>90%)”
t0“Rice”
Claim · model-written summary
Adding benzobicyclon to other post flood herbicides raised Amazon sprangletop control above 90%.
- Taxon
- RiceOryza sativat0
- Treatment
- benzobicyclon at 247 g ha-1e0
- Interactor
- Amazon sprangletope0weed
- Outcome
- Amazon sprangletop controle0
- Direction
- increasede0
- Value
- >90%e0
- Comparator
- other post-flood herbicidese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition of benzobicyclon at 247 g ha-1 to other post-flood herbicides such as halosulfuron at 53 g ha-1, imazamox at 45 g ha-1, and cyhalofop 280 g ha-1 increased red sprangletop and Amazon sprangletop control (>90%)”
t0“Rice”
Claim · model-written summary
Authors concluded that benzobicyclon added to post flood herbicides broadens weed control in rice.
- Taxon
- riceOryza sativae0
- Outcome
- addition of benzobicyclon to post-flood herbicidese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The addition of benzobicyclon to post-flood herbicides will broaden and improve the spectrum of weed control in US rice”
The same questions in other papers
benzobicyclon · Echinochloa crus-galli · Oryza sativa (rice)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
Halosulfuron-methyl · Echinochloa crus-galli · Oryza sativa (rice)Positive and negative results
4 in the opposite direction
- negative
- no effect
- negative
1 paper more in this group
See all 5 papers →benzobicyclon · organism · Oryza sativa (rice)Results agree
2 papers in the same direction as this paper
- positive
- positive
benzobicyclon · control · Oryza sativa (rice)Results agree
3 papers in the same direction as this paper
- positive
- positive
- 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.