Abstract
Three field trials were conducted over two growing seasons to evaluate the efficacy of potential selective postemergence herbicides against dicamba resistant fathen (Chenopodium album) Results confirmed the presence of the biotype which tolerated dicamba up to 2400 g/ha eight times the recommended field rate Postemergence applications of bromoxynil pyridate nicosulfuron and mesotrione all showed equally good efficacy on both susceptible and resistant biotypes Flumetsulam provided good control in one of the three trials Nicosulfuron and mesotrione provided long term residual control in all trials with nicosulfuron also being more effective on grass weeds The 2400 g/ha rate of dicamba severely damaged the maize crop resulting in increased weed cover and reduced grain yield Numbers of viable fathen seeds in the soil at the end of the growing season remained similar to those recorded before planting except in plots that provided good control of fathen where numbers had dropped considerably
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Claims 14
Claim · model-written summary
A dicamba-resistant fathen biotype was confirmed that tolerated dicamba up to 2400 g/ha, eight times the recommended field rate.
Verbatim
t0“fathen (Chenopodium album)”
e0“Results confirmed the presence of the biotype which tolerated dicamba up to 2400 g/ha eight times the recommended field rate”
Claim · model-written summary
Postemergence application of bromoxynil showed equally good efficacy on susceptible and resistant fathen biotypes.
Verbatim
t0“fathen (Chenopodium album)”
e0“Postemergence applications of bromoxynil pyridate nicosulfuron and mesotrione all showed equally good efficacy on both susceptible and resistant biotypes”
Claim · model-written summary
Postemergence application of pyridate showed equally good efficacy on susceptible and resistant fathen biotypes.
Verbatim
t0“fathen (Chenopodium album)”
e0“Postemergence applications of bromoxynil pyridate nicosulfuron and mesotrione all showed equally good efficacy on both susceptible and resistant biotypes”
Claim · model-written summary
Postemergence application of nicosulfuron showed equally good efficacy on susceptible and resistant fathen biotypes.
Verbatim
t0“fathen (Chenopodium album)”
e0“Postemergence applications of bromoxynil pyridate nicosulfuron and mesotrione all showed equally good efficacy on both susceptible and resistant biotypes”
Claim · model-written summary
Postemergence application of mesotrione showed equally good efficacy on susceptible and resistant fathen biotypes.
Verbatim
t0“fathen (Chenopodium album)”
e0“Postemergence applications of bromoxynil pyridate nicosulfuron and mesotrione all showed equally good efficacy on both susceptible and resistant biotypes”
Claim · model-written summary
Flumetsulam provided good control of fathen in one of the three trials.
Not reportedComparatorDirection
Verbatim
t0“fathen (Chenopodium album)”
e0“Flumetsulam provided good control in one of the three trials”
Claim · model-written summary
Nicosulfuron provided long term residual control of fathen in all trials.
Not reportedComparatorDirection
Verbatim
t0“fathen (Chenopodium album)”
e0“Nicosulfuron and mesotrione provided long term residual control in all trials with nicosulfuron also being more effective on grass weeds”
Claim · model-written summary
mesotrione provided long term residual control of fathen in all trials.
Not reportedComparatorDirection
Verbatim
t0“fathen (Chenopodium album)”
e0“Nicosulfuron and mesotrione provided long term residual control in all trials with nicosulfuron also being more effective on grass weeds”
Claim · model-written summary
Nicosulfuron was more effective than mesotrione on grass weeds.
Not reportedComparator
Verbatim
e0“Nicosulfuron and mesotrione provided long term residual control in all trials with nicosulfuron also being more effective on grass weeds”
Claim · model-written summary
The 2400 g/ha rate of dicamba severely damaged the maize crop.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 2400 g/ha rate of dicamba severely damaged the maize crop resulting in increased weed cover and reduced grain yield”
Claim · model-written summary
The 2400 g/ha rate of dicamba resulted in increased weed cover in maize.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 2400 g/ha rate of dicamba severely damaged the maize crop resulting in increased weed cover and reduced grain yield”
Claim · model-written summary
The 2400 g/ha rate of dicamba resulted in reduced grain yield of maize.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 2400 g/ha rate of dicamba severely damaged the maize crop resulting in increased weed cover and reduced grain yield”
Claim · model-written summary
Numbers of viable fathen seeds in the soil at the end of the growing season remained similar to those before planting.
Verbatim
t0“fathen (Chenopodium album)”
e0“Numbers of viable fathen seeds in the soil at the end of the growing season remained similar to those recorded before planting”
Claim · model-written summary
Viable fathen seed numbers dropped considerably in plots that provided good control of fathen.
Verbatim
e0“except in plots that provided good control of fathen where numbers had dropped considerably”
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See all 23 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.