Abstract
In strip-tillage peanut production, situations occur when dinitroaniline herbicides are not applied in a timely manner. In these cases, dinitroaniline herbicides would be applied days or weeks after seeding. However, there is no information that documents the effects of delayed applications on weed control. Trials were conducted in 2004, 2005, and 2007 in Georgia to determine the weed control efficacy of delayed applications of pendimethalin in strip-tillage peanut production. Treatments included seven timings of pendimethalin application and three pendimethalin-containing herbicide combinations. Timings of application were immediately after seeding (PRE), vegetative emergence of peanut (VE), 1 wk after VE (VE+1wk), VE+2wk, VE+3wk, VE+4wk, and a nontreated control. Pendimethalin containing herbicide programs included pendimethalin plus paraquat, pendimethalin plus imazapic, and pendimethalin alone. Among the possible treatment combinations was a current producer standard timing for nonpendimethalin weed control programs in peanut, which was either imazapic or paraquat alone applied VE+3wk. Pendimethalin alone did not effectively control Texas millet regardless of time of application (69 to 77%), whereas southern crabgrass was controlled by pendimethalin alone PRE (87%). Delayed applications of pendimethalin controlled Texas millet and southern crabgrass when combined with either paraquat or imazapic, with imazapic being the preferred combination due to better efficacy on southern crabgrass than paraquat at most delayed applications. Peanut yield was improved when any of the herbicide combinations were applied PRE compared to later applications. Across all times of application, pendimethalin plus imazapic effectively maximized peanut yield with interference from annual grasses.
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Claims 7
Claim · model-written summary
Pendimethalin alone did not effectively control Texas millet regardless of application time (69 to 77% control).
- Taxon
- Peanut Productiont0
- Treatment
- Pendimethalin alonee0
- Interactor
- Texas millete0weed
- Outcome
- control Texas millete0
- Direction
- did not effectively controle0
- Value
- 69 to 77%e0
- Qualifier
- regardless of time of applicatione0
Not reportedComparator
Verbatim
e0“Pendimethalin alone did not effectively control Texas millet regardless of time of application (69 to 77%)”
t0“Peanut Production”
Claim · model-written summary
Southern crabgrass was controlled by pendimethalin alone applied PRE (87%).
- Taxon
- Peanut Productiont0
- Treatment
- pendimethalin alone PREe0
- Interactor
- southern crabgrass
Digitaria ciliarise0weed - Outcome
- southern crabgrass was controllede0
- Direction
- controllede0
- Value
- 87%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“southern crabgrass was controlled by pendimethalin alone PRE (87%)”
t0“Peanut Production”
Claim · model-written summary
Delayed applications of pendimethalin controlled Texas millet when combined with paraquat or imazapic.
- Taxon
- Peanut Productiont0
- Treatment
- Delayed applications of pendimethaline0
- Interactor
- Texas millete0weed
- Outcome
- controlled Texas millete0
- Direction
- controllede0
- Qualifier
- combined with either paraquat or imazapice0
Not reportedComparator
Verbatim
e0“Delayed applications of pendimethalin controlled Texas millet and southern crabgrass when combined with either paraquat or imazapic”
t0“Peanut Production”
Claim · model-written summary
Delayed applications of pendimethalin controlled southern crabgrass when combined with paraquat or imazapic.
- Taxon
- Peanut Productiont0
- Treatment
- Delayed applications of pendimethaline0
- Interactor
- southern crabgrassDigitaria ciliarise0weed
- Outcome
- southern crabgrasse0
- Direction
- controllede0
- Qualifier
- combined with either paraquat or imazapice0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Delayed applications of pendimethalin controlled Texas millet and southern crabgrass when combined with either paraquat or imazapic”
t0“Peanut Production”
Claim · model-written summary
Imazapic was the preferred combination because of better efficacy on southern crabgrass than paraquat at most delayed applications.
- Taxon
- Peanut Productiont0
- Treatment
- imazapice0
- Interactor
- southern crabgrassDigitaria ciliarise0weed
- Outcome
- efficacy on southern crabgrasse0
- Direction
- bettere0
- Qualifier
- at most delayed applicationse0
- Comparator
- paraquate0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“imazapic being the preferred combination due to better efficacy on southern crabgrass than paraquat at most delayed applications”
t0“Peanut Production”
Claim · model-written summary
Peanut yield was improved when any herbicide combination was applied PRE compared with later applications.
- Taxon
- Peanut
Arachis hypogaeae0 - Treatment
- any of the herbicide combinations were applied PREe0
- Outcome
- Peanut yielde0
- Direction
- improvede0
- Comparator
- later applicationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peanut yield was improved when any of the herbicide combinations were applied PRE compared to later applications”
t0“Peanut Production”
Claim · model-written summary
Pendimethalin plus imazapic effectively maximized peanut yield under interference from annual grasses across all application times.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- pendimethalin plus imazapice0
- Interactor
- annual grassese0weed
- Outcome
- peanut yielde0
- Direction
- maximizede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pendimethalin plus imazapic effectively maximized peanut yield with interference from annual grasses”
t0“Peanut Production”
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