Abstract
Abstract The effect of pesticide delivery on the eficacy of equivalent rates of several insecticides was investigated by comparing broadcast foliar sprays to applications via drip irrigation in bell peppers, celery and cantaloupe. Oxamyl applied through the drip line controlled green peach aphids, Myzus persicae (Sulzer) in bell peppers, Capsicum annum L. ‘Tambel‐2’, throughout the growing season, but did not control pepper weevil, Anthonomus eugenii Cano populations. Foliar applications of oxamyl controlled both insects. Foliar applications of cyromazine controlled leafminers, Liriomyza spp. in bell peppers late in the growing season. Drip applications of cyromazine suppressed leafiminers early in the growing season, but were ineffective in later applications. In cantaloupe, Cucumis melo L. ‘Magnum 45’, populations of melon aphids, Aphis gossypii Glover were suppressed with oxamyl and oxydemeton‐methyl, but foliar applications were significantlymore effective in achieving reductions. Oxamyl controlled leafmminers in cantaloupe with both application methods after the first evaluation, but control was superior with foliar applications at the second evaluation. Oxamyl suppressed populations of the western potato leafhopper, Empoasca abrupta DeLong in celery, Apium graveolens L. ‘5270’, using either delivery method. Oxamyl residues in drip‐applied celery were higher than USA regulations would allow, thus the rate of application would have to be modified. A cost analysis comparing delivery systems indicated that a drip‐applied insecticide application was much less expensive than a foliar application with air or ground equipment. However, control was limited to phloem‐feeding insects, was slower in attainment, and at best, was equal to or less than that obtained with a foliar spray.
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Claims 13
Claim · model-written summary
Drip oxamyl controlled green peach aphids in bell peppers throughout the season.
- Taxon
- bell pepperse0
- Treatment
- Oxamyl applied through the drip linee0
- Interactor
- Myzus persicae
Myzus persicaee0pest - Outcome
- green peach aphidse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oxamyl applied through the drip line controlled green peach aphids, Myzus persicae (Sulzer) in bell peppers, Capsicum annum L. ‘Tambel‐2’, throughout the growing season, but did not control pepper weevil, Anthonomus eugenii Cano populations.”
Claim · model-written summary
Drip oxamyl did not control pepper weevil populations.
- Taxon
- bell pepperst0
- Interactor
- Anthonomus eugenii
Anthonomus eugeniie0pest - Outcome
- pepper weevil, Anthonomus eugenii Cano populationse0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“did not control pepper weevil, Anthonomus eugenii Cano populations.”
t0“in bell peppers, Capsicum annum L. ‘Tambel‐2’”
Claim · model-written summary
Foliar oxamyl controlled both green peach aphids and pepper weevils.
Not reportedComparatorDirection
Verbatim
e0“Foliar applications of oxamyl controlled both insects.”
t0“in bell peppers, Capsicum annum L. ‘Tambel‐2’”
Claim · model-written summary
Foliar cyromazine controlled leafminers late in the bell pepper season.
LiriomyzaNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliar applications of cyromazine controlled leafminers, Liriomyza spp. in bell peppers late in the growing season.”
Claim · model-written summary
Drip cyromazine suppressed leafminers early but was ineffective later.
Not reportedComparatorDirection
Verbatim
e0“Drip applications of cyromazine suppressed leafiminers early in the growing season, but were ineffective in later applications.”
t0“in bell peppers, Capsicum annum L. ‘Tambel‐2’”
Claim · model-written summary
Oxamyl and oxydemeton-methyl suppressed melon aphids in cantaloupe.
- Taxon
- cantaloupe
Cucumis melo var. cantalupoe0 - Treatment
- oxamyl and oxydemeton‐methyle0
- Interactor
- Aphis gossypii
Aphis gossypiie0pest - Outcome
- populations of melon aphidse0
- Direction
- suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In cantaloupe, Cucumis melo L. ‘Magnum 45’, populations of melon aphids, Aphis gossypii Glover were suppressed with oxamyl and oxydemeton‐methyl, but foliar applications were significantlymore effective in achieving reductions.”
Claim · model-written summary
Foliar delivery reduced melon aphids more effectively than drip delivery.
- Taxon
- cantaloupeCucumis melo var. cantalupot0
- Treatment
- foliar applicationse0
- Outcome
- reductionse0
- Direction
- more effectivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“foliar applications were significantlymore effective in achieving reductions.”
t0“In cantaloupe, Cucumis melo L. ‘Magnum 45’”
Claim · model-written summary
Oxamyl controlled cantaloupe leafminers with either delivery method at the first evaluation.
- Taxon
- cantaloupeCucumis melo var. cantalupoe0
- Treatment
- Oxamyle0
- Outcome
- leafmminerse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oxamyl controlled leafmminers in cantaloupe with both application methods after the first evaluation, but control was superior with foliar applications at the second evaluation.”
Claim · model-written summary
Foliar oxamyl gave superior leafminer control at the second evaluation.
- Taxon
- cantaloupeCucumis melo var. cantalupot0
- Treatment
- foliar applicationse0
- Outcome
- controle0
- Direction
- superiore0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“control was superior with foliar applications at the second evaluation.”
t0“In cantaloupe, Cucumis melo L. ‘Magnum 45’”
Claim · model-written summary
Oxamyl suppressed western potato leafhopper in celery using either method.
- Taxon
- celery
%2C_Elswick%2C_Northumberland_4.jpg?width=60)
Apium graveolens Dulce Groupe0 - Treatment
- Oxamyle0
- Interactor
- Empoasca abruptaEmpoasca abruptae0pest
- Outcome
- populations of the western potato leafhoppere0
- Direction
- suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
%2C_Elswick%2C_Northumberland_4.jpg?width=500)
Verbatim
e0“Oxamyl suppressed populations of the western potato leafhopper, Empoasca abrupta DeLong in celery, Apium graveolens L. ‘5270’, using either delivery method.”
Claim · model-written summary
Drip-applied celery contained oxamyl residues above US regulatory levels.
- Taxon
- celeryApium graveolens Dulce Groupe0
- Outcome
- Oxamyl residuese0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oxamyl residues in drip‐applied celery were higher than USA regulations would allow, thus the rate of application would have to be modified.”
Claim · model-written summary
Drip application cost much less than foliar application.
Verbatim
e0“A cost analysis comparing delivery systems indicated that a drip‐applied insecticide application was much less expensive than a foliar application with air or ground equipment.”
t0“in bell peppers, celery and cantaloupe”
Claim · model-written summary
Authors concluded drip delivery was limited to phloem-feeding insects and slower or no better than foliar spraying.
Verbatim
e0“control was limited to phloem‐feeding insects, was slower in attainment, and at best, was equal to or less than that obtained with a foliar spray.”
t0“in bell peppers, celery and cantaloupe”
The same questions in other papers
oxamyl · pest · Capsicum annuum (sweet pepper)Results agree
1 paper in the same direction as this paper
- positive
application · pest · Capsicum annuum (sweet pepper)Positive and negative results
4 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
2 papers more in this group
See all 6 papers →application · control · Cucumis melo (muskmelon)Positive and negative results
4 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
3 papers more in this group
See all 7 papers →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.