Abstract
Volunteer potato is a perennial weed that is difficult to control in crop rotations. Field studies were conducted near Paterson, WA, in 2001 and 2002 to evaluate the control of volunteer potato with carfentrazone-ethyl and dicamba in field corn. When potatoes were not controlled corn yield was reduced 23 and 62% in 2001 and 2002, respectively. Single postemergence (POST) applications of carfentrazone-ethyl at 9 g/ha killed exposed foliage of potato, but new shoots continued to emerge both years and reduced corn yield in 2002. The most effective treatments tested were a single mid-postemergence application of carfentrazone-ethyl plus dicamba (9 280 g/ha), two applications of carfentrazone-ethyl alone at early postemergence and late postemergence, and three POST applications of carfentrazone-ethyl, which controlled volunteer potato 77 to 87% in early June, reduced weight of tubers produced by 76 to 96% compared with nontreated checks, and prevented corn yield loss compared with hand-weeded checks. Herbicide treatments reduced potato tuber weight more than tuber number.Nomenclature: Carfentrazone-ethyl; dicamba; field corn, Zea mays L.; potato, Solanum tuberosum L. ‘Russet Burbank’.Additional index words: Groundkeeper (volunteer potato).Abbreviations: EPOST, early postemergence; LPOST, late postemergence; MPOST, mid-postemergence; POST, postemergence.
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Claims 8
Claim · model-written summary
Uncontrolled volunteer potato reduced field corn yield by 23 and 62% in 2001 and 2002.
- Taxon
- field corne0
- Treatment
- not controllede2
- Interactor
- Volunteer potatoe1weed
- Outcome
- corn yielde2
- Direction
- reducede2
- Value
- 23 and 62%e2
- Qualifier
- 2001 and 2002e2
Not reportedComparator
Verbatim
e0“Field studies were conducted near Paterson, WA, in 2001 and 2002 to evaluate the control of volunteer potato with carfentrazone-ethyl and dicamba in field corn”
e1“Volunteer potato is a perennial weed that is difficult to control in crop rotations”
e2“When potatoes were not controlled corn yield was reduced 23 and 62% in 2001 and 2002”
Claim · model-written summary
A single postemergence application of carfentrazone-ethyl at 9 g/ha killed exposed foliage of volunteer potato.
- Taxon
- field corne0
- Treatment
- Single postemergence (POST) applications of carfentrazone-ethyl at 9 g/hae3
- Interactor
- Volunteer potatoe1weed
- Outcome
- exposed foliage of potatoe3
- Direction
- killede3
Not reportedComparator
Verbatim
e0“Field studies were conducted near Paterson, WA, in 2001 and 2002 to evaluate the control of volunteer potato with carfentrazone-ethyl and dicamba in field corn”
e1“Volunteer potato is a perennial weed that is difficult to control in crop rotations”
e3“Single postemergence (POST) applications of carfentrazone-ethyl at 9 g/ha killed exposed foliage of potato”
Claim · model-written summary
New volunteer potato shoots continued to emerge after a single postemergence application of carfentrazone-ethyl in both years.
- Taxon
- field corne0
- Treatment
- Single postemergence (POST) applications of carfentrazone-ethyl at 9 g/hae3
- Interactor
- Volunteer potatoe1weed
- Outcome
- new shootse4
Not reportedComparatorDirection
Verbatim
e0“Field studies were conducted near Paterson, WA, in 2001 and 2002 to evaluate the control of volunteer potato with carfentrazone-ethyl and dicamba in field corn”
e1“Volunteer potato is a perennial weed that is difficult to control in crop rotations”
e3“Single postemergence (POST) applications of carfentrazone-ethyl at 9 g/ha killed exposed foliage of potato”
e4“but new shoots continued to emerge both years and reduced corn yield in 2002”
Claim · model-written summary
A single postemergence application of carfentrazone-ethyl at 9 g/ha reduced field corn yield in 2002.
- Taxon
- field corne0
- Treatment
- Single postemergence (POST) applications of carfentrazone-ethyl at 9 g/hae3
- Interactor
- Volunteer potatoe1weed
- Outcome
- corn yielde4
- Direction
- reducede4
- Qualifier
- in 2002e4
Not reportedComparator
Verbatim
e0“Field studies were conducted near Paterson, WA, in 2001 and 2002 to evaluate the control of volunteer potato with carfentrazone-ethyl and dicamba in field corn”
e1“Volunteer potato is a perennial weed that is difficult to control in crop rotations”
e3“Single postemergence (POST) applications of carfentrazone-ethyl at 9 g/ha killed exposed foliage of potato”
e4“but new shoots continued to emerge both years and reduced corn yield in 2002”
Claim · model-written summary
The most effective treatments controlled volunteer potato by 77 to 87% in early June.
- Taxon
- field corne0
- Treatment
- The most effective treatments testede5
- Interactor
- Volunteer potatoe1weed
- Outcome
- volunteer potatoe6
- Direction
- controllede6
- Value
- 77 to 87%e6
- Qualifier
- in early Junee6
Not reportedComparator
Verbatim
e0“Field studies were conducted near Paterson, WA, in 2001 and 2002 to evaluate the control of volunteer potato with carfentrazone-ethyl and dicamba in field corn”
e1“Volunteer potato is a perennial weed that is difficult to control in crop rotations”
e5“The most effective treatments tested were a single mid-postemergence application of carfentrazone-ethyl plus dicamba (9 280 g/ha)”
e6“controlled volunteer potato 77 to 87% in early June, reduced weight of tubers produced by 76 to 96% compared with nontreated checks”
Claim · model-written summary
The most effective treatments reduced volunteer potato tuber weight by 76 to 96% compared with nontreated checks.
Verbatim
e0“Field studies were conducted near Paterson, WA, in 2001 and 2002 to evaluate the control of volunteer potato with carfentrazone-ethyl and dicamba in field corn”
e1“Volunteer potato is a perennial weed that is difficult to control in crop rotations”
e5“The most effective treatments tested were a single mid-postemergence application of carfentrazone-ethyl plus dicamba (9 280 g/ha)”
e6“controlled volunteer potato 77 to 87% in early June, reduced weight of tubers produced by 76 to 96% compared with nontreated checks”
Claim · model-written summary
The most effective treatments prevented field corn yield loss compared with hand-weeded checks.
Verbatim
e0“Field studies were conducted near Paterson, WA, in 2001 and 2002 to evaluate the control of volunteer potato with carfentrazone-ethyl and dicamba in field corn”
e1“Volunteer potato is a perennial weed that is difficult to control in crop rotations”
e5“The most effective treatments tested were a single mid-postemergence application of carfentrazone-ethyl plus dicamba (9 280 g/ha)”
e7“prevented corn yield loss compared with hand-weeded checks”
Claim · model-written summary
Herbicide treatments reduced potato tuber weight more than tuber number.
Verbatim
e0“Field studies were conducted near Paterson, WA, in 2001 and 2002 to evaluate the control of volunteer potato with carfentrazone-ethyl and dicamba in field corn”
e1“Volunteer potato is a perennial weed that is difficult to control in crop rotations”
e2“Herbicide treatments reduced potato tuber weight more than tuber number”
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