Abstract
Greenhouse and field studies were conducted to investigate weed control and crop safety with clethodim. Ingreenhouse experiments, clethodim activity was much higher than that of a sethoxydim 12.5% EC; barnyardgrass(Echinochloa crus-galli) ED90s were 36.2 and 72.8 g/ha, respectively. Clethodim showed a high degree of safety tosoybeans (Glycine max), cotton (Gosspium hirsutum), peanuts (Arachis hpogaea), and oilseed rape (Brassicacampestris). The best application timing for clethodim was the 2-5 leaf stage of grasses. Clethodim was more rainfastthan sethoxydim. Different grass species showed different susceptibility to clethodim, with ryegrass (Lolium perenne)being the most susceptible, followed by wild oats (Avena fatua) (relatively susceptible), barnyardgrass (moderatesusceptibility), green foxtail (Setaria viridis), large crabgrass (Digitaria sanguinalis), goosegrass (Eleusine indica), andshortawn foxtail (Alopecurus aequalis) (susceptibility somewhat low). Clethodim at 72-108 g/ha in small plot field studiesat several locations provided 85.1-100% control (fresh weights) of barnyardgrass, green foxtail, shortawn foxtail, and annualbluegrass 30 to 60 d after application in soybeans and oilseed rape, with no symptoms of herbicide injury.
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Claims 15
Claim · model-written summary
In greenhouse experiments clethodim was much more active than sethoxydim 12.5% EC against barnyardgrass, with ED90s of 36.2 and 72.8 g/ha respectively.
- Taxon
- barnyardgrass
Echinochloa crus-gallie1 - Treatment
- clethodime1
- Interactor
- barnyardgrass
Echinochloa crus-gallie1weed - Outcome
- activitye1
- Direction
- much highere1
- Value
- 36.2 and 72.8 g/hae1
- Comparator
- sethoxydim 12.5% ECe1
- Setting
- greenhouse experimentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“Ingreenhouse experiments, clethodim activity was much higher than that of a sethoxydim 12.5% EC; barnyardgrass(Echinochloa crus-galli) ED90s were 36.2 and 72.8 g/ha, respectively”
Claim · model-written summary
Clethodim at 72-108 g/ha gave 85.1-100% control (fresh weights) of barnyardgrass, green foxtail, shortawn foxtail and annual bluegrass 30 to 60 days after application in soybeans and oilseed rape.
- Taxon
- soybeans
Glycine maxe2 - Treatment
- Clethodim at 72-108 g/hae2
- Interactor
- barnyardgrass
Echinochloa crus-gallie2weed - Outcome
- control (fresh weights)e2
- Direction
- decreaseinferrede2
- Value
- 85.1-100%e2
- Qualifier
- green foxtail, shortawn foxtail, and annualbluegrasse2
- Setting
- small plot field studiese2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.


Verbatim
e2“Clethodim at 72-108 g/ha in small plot field studiesat several locations provided 85.1-100% control (fresh weights) of barnyardgrass, green foxtail, shortawn foxtail, and annualbluegrass 30 to 60 d after application in soybeans and oilseed rape, with no symptoms of herbicide injury”
Claim · model-written summary
Clethodim showed a high degree of safety to soybeans.
- Taxon
- soybeans
Glycine maxe3 - Treatment
- Clethodime3
- Outcome
- degree of safetye3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e3“Clethodim showed a high degree of safety tosoybeans (Glycine max), cotton (Gosspium hirsutum), peanuts (Arachis hpogaea), and oilseed rape (Brassicacampestris)”
Claim · model-written summary
Clethodim showed a high degree of safety to cotton.
- Taxon
- cotton
Gossypium hirsutume3 - Treatment
- Clethodime3
- Outcome
- degree of safetye3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e3“Clethodim showed a high degree of safety tosoybeans (Glycine max), cotton (Gosspium hirsutum), peanuts (Arachis hpogaea), and oilseed rape (Brassicacampestris)”
Claim · model-written summary
Clethodim showed a high degree of safety to peanuts.
- Taxon
- peanuts
Arachis hypogaeae3 - Treatment
- Clethodime3
- Outcome
- degree of safetye3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e3“Clethodim showed a high degree of safety tosoybeans (Glycine max), cotton (Gosspium hirsutum), peanuts (Arachis hpogaea), and oilseed rape (Brassicacampestris)”
Claim · model-written summary
Clethodim showed a high degree of safety to oilseed rape.
- Taxon
- oilseed rape
Brassica napuse3 - Treatment
- Clethodime3
- Outcome
- degree of safetye3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Brassica_napus_-_Habit.jpg?width=500)
Verbatim
e3“Clethodim showed a high degree of safety tosoybeans (Glycine max), cotton (Gosspium hirsutum), peanuts (Arachis hpogaea), and oilseed rape (Brassicacampestris)”
Claim · model-written summary
The best application timing for clethodim on grasses was the 2-5 leaf stage.
Verbatim
e4“The best application timing for clethodim was the 2-5 leaf stage of grasses”
Claim · model-written summary
Clethodim was more rainfast than sethoxydim.
Verbatim
e4“The best application timing for clethodim was the 2-5 leaf stage of grasses”
e5“Clethodim was more rainfastthan sethoxydim”
Claim · model-written summary
Ryegrass was the most susceptible grass species to clethodim.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e5“Different grass species showed different susceptibility to clethodim”
e6“with ryegrass (Lolium perenne)being the most susceptible”
Claim · model-written summary
Wild oats were relatively susceptible to clethodim.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e5“Different grass species showed different susceptibility to clethodim”
e6“followed by wild oats (Avena fatua) (relatively susceptible)”
Claim · model-written summary
Barnyardgrass had moderate susceptibility to clethodim.
- Taxon
- barnyardgrass
Echinochloa crus-gallie6 - Outcome
- susceptibility to clethodime5
- Qualifier
- moderate susceptibilitye6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e5“Different grass species showed different susceptibility to clethodim”
e6“barnyardgrass (moderatesusceptibility)”
Claim · model-written summary
Green foxtail showed a different susceptibility to clethodim; the level is not stated.
Verbatim
e5“Different grass species showed different susceptibility to clethodim”
e6“green foxtail (Setaria viridis)”
Claim · model-written summary
Large crabgrass showed a different susceptibility to clethodim; the level is not stated.
Verbatim
e5“Different grass species showed different susceptibility to clethodim”
e6“large crabgrass (Digitaria sanguinalis)”
Claim · model-written summary
Goosegrass showed a different susceptibility to clethodim; the level is not stated.
Verbatim
e5“Different grass species showed different susceptibility to clethodim”
e6“goosegrass (Eleusine indica)”
Claim · model-written summary
Shortawn foxtail had somewhat low susceptibility to clethodim.
Verbatim
e5“Different grass species showed different susceptibility to clethodim”
e6“andshortawn foxtail (Alopecurus aequalis) (susceptibility somewhat low)”
The same questions in other papers
clethodim · Echinochloa crus-galli · Glycine max (soybean)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
1 paper more in this group
See all 5 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.