Abstract
Volunteer crops resistant to glyphosate and other herbicides pose a potential problem for Pacific Northwest (PNW) growers that rely on glyphosate for control of volunteer crops and weeds during fallow and before planting. Herbicides for control of volunteer herbicide-resistant wheat and canola in PNW conservation tillage systems were evaluated during 2000 and 2001 near Ralston, WA, and Moscow, ID. Paraquat + diuron controlled glyphosate- and imidazolinone-resistant wheat ≥90%, and glyphosate controlled imidazolinone-resistant wheat 88 to 96% 14 d after treatment (DAT). Glyphosate- and imidazolinone-resistant wheat were controlled only 58 to 85% with quizalofop-P and clethodim 14 DAT. By 21 DAT, imidazolinone-resistant wheat control with clethodim and quizalofop-P was ≥93%, but the longer time period required for control to reach an acceptable level could increase disease and insect problems associated with volunteer wheat. Volunteer glyphosate-resistant canola was controlled 92 and 97% 14 DAT and 76 and 98% 21 DAT with paraquat and paraquat + diuron, respectively. Treatments that contained glyphosate controlled imidazolinone- and glufosinate-resistant canola >84% 14 DAT. By 21 DAT, control of imidazolinone- and glufosinate-resistant canola was 94 to 98% with paraquat + diuron and all glyphosate treatments, except glyphosate–isopropylamine salt (IPA) + glufosinate (88 to 93%) and glyphosate-IPA + paraquat (67 to 85%). In these studies, paraquat + diuron was the best alternative to glyphosate for controlling volunteer herbicide-resistant wheat and canola.
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Claims 13
Claim · model-written summary
Paraquat plus diuron controlled glyphosate- and imidazolinone-resistant wheat at least 90%.
- Taxon
- wheat
Triticum aestivume0 - Material
- glyphosate- and imidazolinone-resistant wheate0
- Treatment
- Paraquat + diurone0
- Outcome
- wheate0
- Direction
- controllede0
- Value
- ≥90%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Paraquat + diuron controlled glyphosate- and imidazolinone-resistant wheat ≥90%”
Claim · model-written summary
Glyphosate controlled imidazolinone-resistant wheat 88 to 96% at 14 days after treatment.
- Taxon
- wheatTriticum aestivume0
- Material
- imidazolinone-resistant wheate0
- Treatment
- glyphosatee0
- Outcome
- wheate0
- Direction
- controllede0
- Value
- 88 to 96%e0
- Qualifier
- 14 d after treatment (DAT)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“glyphosate controlled imidazolinone-resistant wheat 88 to 96% 14 d after treatment (DAT)”
Claim · model-written summary
Quizalofop-P controlled resistant wheat only 58 to 85% at 14 days.
- Taxon
- wheatTriticum aestivume0
- Material
- Glyphosate- and imidazolinone-resistant wheate0
- Treatment
- quizalofop-Pe0
- Outcome
- wheate0
- Direction
- controllede0
- Value
- 58 to 85%e0
- Qualifier
- 14 DATe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glyphosate- and imidazolinone-resistant wheat were controlled only 58 to 85% with quizalofop-P and clethodim 14 DAT”
Claim · model-written summary
Clethodim controlled resistant wheat only 58 to 85% at 14 days.
- Taxon
- wheatTriticum aestivume0
- Material
- Glyphosate- and imidazolinone-resistant wheate0
- Treatment
- clethodime0
- Outcome
- wheate0
- Direction
- controllede0
- Value
- 58 to 85%e0
- Qualifier
- 14 DATe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Glyphosate- and imidazolinone-resistant wheat were controlled only 58 to 85% with quizalofop-P and clethodim 14 DAT”
Claim · model-written summary
Clethodim controlled imidazolinone-resistant wheat at least 93% by 21 days.
- Taxon
- wheatTriticum aestivume0
- Material
- imidazolinone-resistant wheate0
- Treatment
- clethodime0
- Outcome
- wheat controle0
- Value
- ≥93%e0
- Qualifier
- 21 DATe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“By 21 DAT, imidazolinone-resistant wheat control with clethodim and quizalofop-P was ≥93%”
Claim · model-written summary
Quizalofop-P controlled imidazolinone-resistant wheat at least 93% by 21 days.
- Taxon
- wheatTriticum aestivume0
- Material
- imidazolinone-resistant wheate0
- Treatment
- quizalofop-Pe0
- Outcome
- wheat controle0
- Value
- ≥93%e0
- Qualifier
- 21 DATe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“By 21 DAT, imidazolinone-resistant wheat control with clethodim and quizalofop-P was ≥93%”
Claim · model-written summary
Paraquat controlled glyphosate-resistant volunteer canola 92% at 14 days.
- Taxon
- canola
.jpg?width=60)
Brassica napus var. napuse0 - Material
- glyphosate-resistant canolae0
- Treatment
- paraquate0
- Outcome
- canolae0
- Direction
- controllede0
- Value
- 92e0
- Qualifier
- 14 DATe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Volunteer glyphosate-resistant canola was controlled 92 and 97% 14 DAT and 76 and 98% 21 DAT with paraquat and paraquat + diuron, respectively”
Claim · model-written summary
Paraquat plus diuron controlled glyphosate-resistant volunteer canola 97% at 14 days.
- Taxon
- canolaBrassica napus var. napuse0
- Material
- glyphosate-resistant canolae0
- Treatment
- paraquat + diurone0
- Outcome
- canolae0
- Direction
- controllede0
- Value
- 97%e0
- Qualifier
- 14 DATe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Volunteer glyphosate-resistant canola was controlled 92 and 97% 14 DAT and 76 and 98% 21 DAT with paraquat and paraquat + diuron, respectively”
Claim · model-written summary
Paraquat controlled glyphosate-resistant volunteer canola 76% at 21 days.
- Taxon
- canolaBrassica napus var. napuse0
- Material
- glyphosate-resistant canolae0
- Treatment
- paraquate0
- Outcome
- canolae0
- Direction
- controllede0
- Value
- 76e0
- Qualifier
- 21 DATe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Volunteer glyphosate-resistant canola was controlled 92 and 97% 14 DAT and 76 and 98% 21 DAT with paraquat and paraquat + diuron, respectively”
Claim · model-written summary
Paraquat plus diuron controlled glyphosate-resistant volunteer canola 98% at 21 days.
- Taxon
- canolaBrassica napus var. napuse0
- Material
- glyphosate-resistant canolae0
- Treatment
- paraquat + diurone0
- Outcome
- canolae0
- Direction
- controllede0
- Value
- 98%e0
- Qualifier
- 21 DATe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Volunteer glyphosate-resistant canola was controlled 92 and 97% 14 DAT and 76 and 98% 21 DAT with paraquat and paraquat + diuron, respectively”
Claim · model-written summary
Glyphosate-containing treatments controlled imidazolinone-resistant canola over 84% at 14 days.
- Taxon
- canolaBrassica napus var. napuse0
- Material
- imidazolinone- and glufosinate-resistant canolae0
- Treatment
- Treatments that contained glyphosatee0
- Outcome
- canolae0
- Direction
- controllede0
- Value
- >84%e0
- Qualifier
- 14 DATe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatments that contained glyphosate controlled imidazolinone- and glufosinate-resistant canola >84% 14 DAT”
Claim · model-written summary
Paraquat plus diuron and glyphosate treatments controlled resistant canola 94 to 98% by 21 days, with stated exceptions.
- Taxon
- canolaBrassica napus var. napuse0
- Material
- imidazolinone- and glufosinate-resistant canolae0
- Treatment
- paraquat + diuron and all glyphosate treatmentse0
- Outcome
- controle0
- Value
- 94 to 98%e0
- Qualifier
- except glyphosate–isopropylamine salt (IPA) + glufosinate (88 to 93%) and glyphosate-IPA + paraquat (67 to 85%)e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“control of imidazolinone- and glufosinate-resistant canola was 94 to 98% with paraquat + diuron and all glyphosate treatments, except glyphosate–isopropylamine salt (IPA) + glufosinate (88 to 93%) and glyphosate-IPA + paraquat (67 to 85%)”
Claim · model-written summary
Paraquat plus diuron was identified as the best alternative to glyphosate for resistant volunteer wheat and canola.
- Taxon
- wheat and canolaTriticum aestivumBrassica napus var. napuse0
- Treatment
- paraquat + diurone0
- Outcome
- best alternative to glyphosate for controlling volunteer herbicide-resistant wheat and canolae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“paraquat + diuron was the best alternative to glyphosate for controlling volunteer herbicide-resistant wheat and canola”
The same questions in other papers
paraquat · organism · Triticum aestivum (wheat)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
glyphosate · organism · Brassica napus (oilseed rape)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
1 paper more in this group
See all 5 papers →paraquat · control · Brassica napus (oilseed rape)Positive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
3 papers more in this group
See all 7 papers →glyphosate · control · Brassica napus (oilseed rape)Positive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
3 papers more in this group
See all 7 papers →glyphosate · organism · Triticum aestivum (wheat)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.