Abstract
Aminocyclopyrachlor (AMCP) is a herbicide with an auxin-mimic mode of action. AMCP is registered for use in the United States on right-of-way and other noncropland sites, causing concern for potential off-target spray drift. The objectives of this study were to evaluate cantaloupe and eggplant response to simulated AMCP spray drift in the field and cotton response in the greenhouse. Cantaloupe and eggplant responded with little to no injury from drift rates up to 10 g AMCP ha −1 , roughly 3.2% of the maximum labeled use rate for right-of-way weed control. Slight yield reductions occurred but were not consistent between 2008 and 2009. Therefore, eggplant and cantaloupe injury and yield-reduction potential from AMCP spray drift is low. Cotton response to AMCP drift was compared to similar spray drift rates of 2,4-D and aminopyralid. Cotton responded with injury and reductions in height and dry mass from all three herbicides. Responses were greatest from AMCP, indicating AMCP is potentially more damaging to cotton than 2,4-D or aminopyralid if spray drift occurs, when comparing percentages of labeled rates.
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Claims 4
Claim · model-written summary
Cantaloupe and eggplant had little to no injury from simulated AMCP spray drift up to 10 g ha-1 in the field.
- Taxon
- Cantaloupe and eggplant
Cucumis melo var. cantalupo
Solanum melongenae1 - Treatment
- drift rates up to 10 g AMCP ha −1e1
- Outcome
- injurye1
- Direction
- little to noe1
- Setting
- in the fielde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate cantaloupe and eggplant response to simulated AMCP spray drift in the field and cotton response in the greenhouse”
e1“Cantaloupe and eggplant responded with little to no injury from drift rates up to 10 g AMCP ha −1”
Claim · model-written summary
Simulated AMCP spray drift caused slight, inconsistent yield reductions in cantaloupe and eggplant across 2008 and 2009.
- Taxon
- cantaloupe and eggplantCucumis melo var. cantalupoSolanum melongenae0
- Treatment
- simulated AMCP spray drifte0
- Outcome
- yield reductionse2
- Direction
- reductionse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate cantaloupe and eggplant response to simulated AMCP spray drift in the field and cotton response in the greenhouse”
e2“Slight yield reductions occurred but were not consistent between 2008 and 2009”
Claim · model-written summary
Simulated spray drift from all three herbicides caused injury and reductions in height and dry mass of cotton in the greenhouse.
- Taxon
- Cotton
Gossypium hirsutume3 - Treatment
- all three herbicidese3
- Outcome
- injury and reductions in height and dry masse3
- Direction
- reductionse3
- Setting
- greenhousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate cantaloupe and eggplant response to simulated AMCP spray drift in the field and cotton response in the greenhouse”
e3“Cotton responded with injury and reductions in height and dry mass from all three herbicides”
Claim · model-written summary
AMCP drift was potentially more damaging to cotton than 2,4-D or aminopyralid drift when compared at percentages of labeled rates.
- Taxon
- cottonGossypium hirsutume4
- Treatment
- AMCPe4
- Outcome
- Responsese4
- Direction
- greateste4
- Qualifier
- when comparing percentages of labeled ratese4
- Comparator
- 2,4-D or aminopyralide4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Responses were greatest from AMCP, indicating AMCP is potentially more damaging to cotton than 2,4-D or aminopyralid if spray drift occurs, when comparing percentages of labeled rates”
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