Abstract
Field studies were conducted at Dekalb, Urbana, and Brownstown, IL, in 1996 and 1997 to evaluate corn ( Zea mays ) injury and weed control from preemergence applications of RPA 201772 alone and tank-mixed with metolachlor, atrazine, or both. No significant corn injury from RPA 201772 was observed at any time for all experiments. Giant foxtail ( Setaria faberi ) control at 60 days after treatment (DAT) was variable and ranged from 47 to 93% for RPA 201772 applied alone at 105 g ai/ ha. Giant foxtail control of at least 90% was observed by applying metolachlor at 1,120 g ai/ha with 105 g/ha RPA 201772. The addition of atrazine at either 1,120 or 1,680 g ai/ha improved control of giant foxtail compared with RPA 201772 applied alone at 105 g/ha in two of the six studies. RPA 201772 applied at 105 g/ha controlled at least 88% of velvetleaf ( Abutilon theophrasti ), Pennsylvania smartweed ( Polygonum pensylvanicum ), and smooth pigweed ( Amaranthus hybridus ). RPA 201772 controlled 88% or less of common waterhemp ( Amaranthus rudis ), common ragweed ( Ambrosia artemisiifolia ), and common cocklebur ( Xanthium strumarium ). Control of these three species was 92% or greater with RPA 201772 plus atrazine. Control of common lambsquarters ( Chenopodium album ) was at least 96% with RPA 201772 applied alone at any rate in four of the six studies. However, common lambsquarters control was 68 and 77% for RPA 201772 applied alone at 105 g/ha at Urbana and Brownstown in 1997, respectively, where high common lambsquarters densities were prevalent. Under these conditions, the addition of atrazine to RPA 201772 at 105 g/ha improved control of common lambsquarters. RPA 201772 has excellent potential to provide consistent control of velvetleaf compared with atrazine. In contrast, these studies indicate RPA 201772 may provide inconsistent control of certain weed species in different environments. In order to achieve consistent control of a broad spectrum of weed species, RPA 201772 must be combined with other herbicides.
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Claims 17
Claim · model-written summary
RPA 201772 caused no significant injury to corn in any experiment.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate corn ( Zea mays ) injury and weed control from preemergence applications of RPA 201772 alone and tank-mixed with metolachlor, atrazine, or both”
e1“No significant corn injury from RPA 201772 was observed at any time for all experiments”
Claim · model-written summary
Giant foxtail control by RPA 201772 applied alone at 105 g ai/ha was variable, ranging from 47 to 93% at 60 days after treatment.
- Treatment
- RPA 201772 applied alone at 105 g ai/ hae1
- Interactor
- Setaria faberi
Setaria faberie1weed - Outcome
- Giant foxtail ( Setaria faberi ) controle1
- Direction
- variablee1
- Value
- 47 to 93%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate corn ( Zea mays ) injury and weed control from preemergence applications of RPA 201772 alone and tank-mixed with metolachlor, atrazine, or both”
e1“Giant foxtail ( Setaria faberi ) control at 60 days after treatment (DAT) was variable and ranged from 47 to 93% for RPA 201772 applied alone at 105 g ai/ ha”
Claim · model-written summary
Adding atrazine improved giant foxtail control compared with RPA 201772 alone at 105 g/ha, in two of the six studies.
- Treatment
- addition of atrazine at either 1,120 or 1,680 g ai/hae1
- Interactor
- giant foxtaile1weed
- Outcome
- control of giant foxtaile1
- Direction
- improvede1
- Qualifier
- in two of the six studiese1
- Comparator
- RPA 201772 applied alone at 105 g/hae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate corn ( Zea mays ) injury and weed control from preemergence applications of RPA 201772 alone and tank-mixed with metolachlor, atrazine, or both”
e1“The addition of atrazine at either 1,120 or 1,680 g ai/ha improved control of giant foxtail compared with RPA 201772 applied alone at 105 g/ha in two of the six studies”
Claim · model-written summary
RPA 201772 at 105 g/ha controlled at least 88% of velvetleaf (Abutilon theophrasti).
- Treatment
- RPA 201772 applied at 105 g/hae1
- Interactor
- Abutilon theophrasti
Abutilon theophrastie1weed - Outcome
- velvetleafe1
- Direction
- controllede1
- Value
- at least 88%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate corn ( Zea mays ) injury and weed control from preemergence applications of RPA 201772 alone and tank-mixed with metolachlor, atrazine, or both”
e1“RPA 201772 applied at 105 g/ha controlled at least 88% of velvetleaf ( Abutilon theophrasti ), Pennsylvania smartweed ( Polygonum pensylvanicum ), and smooth pigweed ( Amaranthus hybridus )”
Claim · model-written summary
RPA 201772 at 105 g/ha controlled at least 88% of Pennsylvania smartweed (Polygonum pensylvanicum).
- Treatment
- RPA 201772 applied at 105 g/hae1
- Interactor
- Polygonum pensylvanicum
_(21143913879).jpg?width=60)
Persicaria pensylvanicae1weed - Outcome
- Pennsylvania smartweede1
- Direction
- controllede1
- Value
- at least 88%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_(21143913879).jpg?width=500)
Verbatim
e0“evaluate corn ( Zea mays ) injury and weed control from preemergence applications of RPA 201772 alone and tank-mixed with metolachlor, atrazine, or both”
e1“RPA 201772 applied at 105 g/ha controlled at least 88% of velvetleaf ( Abutilon theophrasti ), Pennsylvania smartweed ( Polygonum pensylvanicum ), and smooth pigweed ( Amaranthus hybridus )”
Claim · model-written summary
RPA 201772 at 105 g/ha controlled at least 88% of smooth pigweed (Amaranthus hybridus).
- Treatment
- RPA 201772 applied at 105 g/hae1
- Interactor
- Amaranthus hybridus
Amaranthus hybriduse1weed - Outcome
- smooth pigweede1
- Direction
- controllede1
- Value
- at least 88%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate corn ( Zea mays ) injury and weed control from preemergence applications of RPA 201772 alone and tank-mixed with metolachlor, atrazine, or both”
e1“RPA 201772 applied at 105 g/ha controlled at least 88% of velvetleaf ( Abutilon theophrasti ), Pennsylvania smartweed ( Polygonum pensylvanicum ), and smooth pigweed ( Amaranthus hybridus )”
Claim · model-written summary
RPA 201772 controlled 88% or less of common waterhemp (Amaranthus rudis).
- Treatment
- RPA 201772e1
- Interactor
- Amaranthus rudis
.jpeg?width=60)
Amaranthus tuberculatuse1weed - Outcome
- common waterhempe1
- Direction
- controllede1
- Value
- 88% or lesse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpeg?width=500)
Verbatim
e0“evaluate corn ( Zea mays ) injury and weed control from preemergence applications of RPA 201772 alone and tank-mixed with metolachlor, atrazine, or both”
e1“RPA 201772 controlled 88% or less of common waterhemp ( Amaranthus rudis ), common ragweed ( Ambrosia artemisiifolia ), and common cocklebur ( Xanthium strumarium )”
Claim · model-written summary
RPA 201772 controlled 88% or less of common ragweed (Ambrosia artemisiifolia).
- Treatment
- RPA 201772e1
- Interactor
- Ambrosia artemisiifolia
Ambrosia artemisiifoliae1weed - Outcome
- common ragweede1
- Direction
- controllede1
- Value
- 88% or lesse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate corn ( Zea mays ) injury and weed control from preemergence applications of RPA 201772 alone and tank-mixed with metolachlor, atrazine, or both”
e1“RPA 201772 controlled 88% or less of common waterhemp ( Amaranthus rudis ), common ragweed ( Ambrosia artemisiifolia ), and common cocklebur ( Xanthium strumarium )”
Claim · model-written summary
RPA 201772 controlled 88% or less of common cocklebur (Xanthium strumarium).
- Treatment
- RPA 201772e1
- Interactor
- Xanthium strumarium
Xanthium strumariume1weed - Outcome
- common cocklebure1
- Direction
- controllede1
- Value
- 88% or lesse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate corn ( Zea mays ) injury and weed control from preemergence applications of RPA 201772 alone and tank-mixed with metolachlor, atrazine, or both”
e1“RPA 201772 controlled 88% or less of common waterhemp ( Amaranthus rudis ), common ragweed ( Ambrosia artemisiifolia ), and common cocklebur ( Xanthium strumarium )”
Claim · model-written summary
RPA 201772 plus atrazine controlled common waterhemp (Amaranthus rudis) at 92% or greater.
- Treatment
- RPA 201772 plus atrazinee1
- Interactor
- Amaranthus rudisAmaranthus tuberculatuse2weed
- Outcome
- Control of these three speciese1
- Direction
- greatere1
- Value
- 92% or greatere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate corn ( Zea mays ) injury and weed control from preemergence applications of RPA 201772 alone and tank-mixed with metolachlor, atrazine, or both”
e1“Control of these three species was 92% or greater with RPA 201772 plus atrazine”
e2“RPA 201772 controlled 88% or less of common waterhemp ( Amaranthus rudis ), common ragweed ( Ambrosia artemisiifolia ), and common cocklebur ( Xanthium strumarium )”
Claim · model-written summary
RPA 201772 plus atrazine controlled common ragweed (Ambrosia artemisiifolia) at 92% or greater.
- Treatment
- RPA 201772 plus atrazinee1
- Interactor
- Ambrosia artemisiifoliaAmbrosia artemisiifoliae2weed
- Outcome
- Control of these three speciese1
- Direction
- greatere1
- Value
- 92% or greatere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate corn ( Zea mays ) injury and weed control from preemergence applications of RPA 201772 alone and tank-mixed with metolachlor, atrazine, or both”
e1“Control of these three species was 92% or greater with RPA 201772 plus atrazine”
e2“RPA 201772 controlled 88% or less of common waterhemp ( Amaranthus rudis ), common ragweed ( Ambrosia artemisiifolia ), and common cocklebur ( Xanthium strumarium )”
Claim · model-written summary
RPA 201772 plus atrazine controlled common cocklebur (Xanthium strumarium) at 92% or greater.
- Treatment
- RPA 201772 plus atrazinee1
- Interactor
- Xanthium strumariumXanthium strumariume2weed
- Outcome
- Control of these three speciese1
- Direction
- greatere1
- Value
- 92% or greatere1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate corn ( Zea mays ) injury and weed control from preemergence applications of RPA 201772 alone and tank-mixed with metolachlor, atrazine, or both”
e1“Control of these three species was 92% or greater with RPA 201772 plus atrazine”
e2“RPA 201772 controlled 88% or less of common waterhemp ( Amaranthus rudis ), common ragweed ( Ambrosia artemisiifolia ), and common cocklebur ( Xanthium strumarium )”
Claim · model-written summary
RPA 201772 applied alone at any rate gave at least 96% control of common lambsquarters (Chenopodium album), in four of the six studies.
- Treatment
- RPA 201772 applied alone at any ratee1
- Interactor
- Chenopodium album
Chenopodium albume1weed - Outcome
- Control of common lambsquarterse1
- Direction
- at leaste1
- Value
- at least 96%e1
- Qualifier
- in four of the six studiese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate corn ( Zea mays ) injury and weed control from preemergence applications of RPA 201772 alone and tank-mixed with metolachlor, atrazine, or both”
e1“Control of common lambsquarters ( Chenopodium album ) was at least 96% with RPA 201772 applied alone at any rate in four of the six studies”
Claim · model-written summary
RPA 201772 applied alone at 105 g/ha gave 68 and 77% common lambsquarters control at Urbana and Brownstown in 1997, where lambsquarters densities were high.
- Treatment
- RPA 201772 applied alone at 105 g/hae1
- Interactor
- common lambsquartersChenopodium albume1weed
- Outcome
- common lambsquarters controle1
- Value
- 68 and 77%e1
- Qualifier
- where high common lambsquarters densities were prevalente1
- Setting
- Urbana and Brownstowne1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate corn ( Zea mays ) injury and weed control from preemergence applications of RPA 201772 alone and tank-mixed with metolachlor, atrazine, or both”
e1“common lambsquarters control was 68 and 77% for RPA 201772 applied alone at 105 g/ha at Urbana and Brownstown in 1997, respectively, where high common lambsquarters densities were prevalent”
Claim · model-written summary
Adding atrazine to RPA 201772 at 105 g/ha improved common lambsquarters control under high-density conditions.
- Treatment
- addition of atrazine to RPA 201772 at 105 g/hae1
- Interactor
- common lambsquartersChenopodium albume1weed
- Outcome
- control of common lambsquarterse1
- Direction
- improvede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate corn ( Zea mays ) injury and weed control from preemergence applications of RPA 201772 alone and tank-mixed with metolachlor, atrazine, or both”
e1“Under these conditions, the addition of atrazine to RPA 201772 at 105 g/ha improved control of common lambsquarters”
Claim · model-written summary
RPA 201772 has excellent potential for consistent control of velvetleaf compared with atrazine.
- Treatment
- RPA 201772e1
- Interactor
- velvetleafAbutilon theophrastie1weed
- Outcome
- consistent control of velvetleafe1
- Direction
- excellent potentiale1
- Comparator
- atrazinee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate corn ( Zea mays ) injury and weed control from preemergence applications of RPA 201772 alone and tank-mixed with metolachlor, atrazine, or both”
e1“RPA 201772 has excellent potential to provide consistent control of velvetleaf compared with atrazine”
Claim · model-written summary
RPA 201772 must be combined with other herbicides to achieve consistent control of a broad spectrum of weed species in corn.
- Outcome
- combined with other herbicidese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate corn ( Zea mays ) injury and weed control from preemergence applications of RPA 201772 alone and tank-mixed with metolachlor, atrazine, or both”
e1“RPA 201772 must be combined with other herbicides”
The same questions in other papers
atrazine · Ambrosia artemisiifolia · Zea mays (maize)Positive and negative results
9 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
7 papers more in this group
See all 11 papers →atrazine · Chenopodium album · Zea mays (maize)Positive and negative results
9 papers in the same direction as this paper · 1 reporting no difference from an alternative
- no effect
- positive
- positive
7 papers more in this group
See all 11 papers →atrazine · control · Zea mays (maize)Positive and negative results
68 papers in the same direction as this paper · 15 in the opposite direction · 2 reporting no difference from an alternative
- positive
- positive
- positive
82 papers more in this group
See all 86 papers →isoxaflutole · Amaranthus tuberculatus · Zea mays (maize)Results agree
1 paper in the same direction as this paper
- positive
isoxaflutole · Chenopodium album · Zea mays (maize)Results agree
2 papers in the same direction as this paper
- positive
- positive
atrazine · Amaranthus tuberculatus · Zea mays (maize)Results agree
2 papers in the same direction as this paper
- positive
- positive
isoxaflutole · Ambrosia artemisiifolia · Zea mays (maize)Results agree
2 papers in the same direction as this paper
- positive
- positive
isoxaflutole · Abutilon theophrasti · Zea mays (maize)Results agree
5 papers in the same direction as this paper
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.