Abstract
A study was established to evaluate herbicides registered for barnyardgrass control in rice for activity on creeping rivergrass. Treatments included 208 g ai/ha cyhalofop early POST (EPOST) followed by (fb) 315 g/ha cyhalofop late POST (LPOST), 22 g ai/ha bispyribac EPOST fb 22 g/ha bispyribac LPOST, 66 g ai/ha fenoxaprop EPOST fb 86 g/ha fenoxaprop LPOST, 70 g ai/ha imazethapyr EPOST fb 70 g/ha imazethapyr LPOST and 50 g ai/ha penoxsulam mid-POST (MPOST). Each POST program was evaluated with and without 448 g ai/ha clomazone PRE. Barnyardgrass control, averaged over days after treatment (DAT), was 88 to 92% with the addition of clomazone PRE. Clomazone applied PRE followed by two applications of cyhalofop controlled creeping rivergrass at 91%. Creeping rivergrass control was less than 75% at 35 to 49 DAT. This response indicates only suppression of creeping rivergrass is achieved with the herbicide programs evaluated in this study.Nomenclature: Bispyribac, clomazone, cyhalofop, fenoxaprop, imazethapyr, penoxsulam, barnyardgrass, Echinochloa crus-galli (L.) Beauv, creeping rivergrass, Echinochloa polystachya (Kunth) A.S. Hitchc, rice, Oryza sativa L
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Claims 4
Claim · model-written summary
Adding clomazone PRE gave 88 to 92% barnyardgrass control averaged over days after treatment in rice.
- Taxon
- Rice
Oryza sativat0 - Treatment
- clomazone PREe1
- Interactor
- barnyardgrass
Echinochloa crus-gallie1weed - Outcome
- Barnyardgrass controle1
- Value
- 88 to 92%e1
- Comparator
- without 448 g ai/ha clomazone PREe2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Barnyardgrass control, averaged over days after treatment (DAT), was 88 to 92% with the addition of clomazone PRE”
e2“Each POST program was evaluated with and without 448 g ai/ha clomazone PRE”
t0“in Rice”
Claim · model-written summary
Clomazone PRE followed by two cyhalofop applications controlled creeping rivergrass 91% in rice.
- Taxon
- RiceOryza sativat0
- Treatment
- Clomazone applied PRE followed by two applications of cyhalofope3
- Interactor
- creeping rivergrasse3weed
- Outcome
- controllede3
- Value
- 91%e3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Clomazone applied PRE followed by two applications of cyhalofop controlled creeping rivergrass at 91%”
t0“in Rice”
Claim · model-written summary
Creeping rivergrass control stayed below 75% at 35 to 49 days after treatment in rice.
- Taxon
- RiceOryza sativat0
- Interactor
- Creeping rivergrasse4weed
- Outcome
- Creeping rivergrass controle4
- Direction
- less thane4
- Value
- less than 75%e4
- Qualifier
- 35 to 49 DATe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Creeping rivergrass control was less than 75% at 35 to 49 DAT”
t0“in Rice”
Claim · model-written summary
The herbicide programs evaluated gave only suppression, not control, of creeping rivergrass in rice.
- Taxon
- RiceOryza sativat0
- Interactor
- creeping rivergrasse5weed
- Outcome
- suppression of creeping rivergrasse5
- Qualifier
- only suppression of creeping rivergrasse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“This response indicates only suppression of creeping rivergrass is achieved with the herbicide programs evaluated in this study”
t0“in Rice”
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clomazone · control · Oryza sativa (rice)Positive and negative results
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- no effect
- positive
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See all 6 papers →clomazone · Echinochloa crus-galli · Oryza sativa (rice)Positive and negative results
7 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative
- positive
- negative
- no effect
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See all 12 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.