Season Long Pest Management Efficacy and Spray Characteristics of a Solid Set Canopy Delivery System in High Density Apples

Solid set canopy delivery systems (SSCDS) are a novel foliar agrochemical delivery system designed as an alternative for airblast sprayers in high density fruit production. This study tested the pest management potential, coverage, and chemical deposition of an SSCDS using commercially available mic...

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Main Authors: Paul Owen-Smith, John Wise, Matthew J. Grieshop
Format: Article
Language:English
Published: MDPI AG 2019-06-01
Series:Insects
Subjects:
Online Access:https://www.mdpi.com/2075-4450/10/7/193
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author Paul Owen-Smith
John Wise
Matthew J. Grieshop
author_facet Paul Owen-Smith
John Wise
Matthew J. Grieshop
author_sort Paul Owen-Smith
collection DOAJ
description Solid set canopy delivery systems (SSCDS) are a novel foliar agrochemical delivery system designed as an alternative for airblast sprayers in high density fruit production. This study tested the pest management potential, coverage, and chemical deposition of an SSCDS using commercially available microsprinkler components over the course of a growing season. Spray coverage and deposition for a representative airblast sprayer and SSCDS were evaluated using water sensitive paper and tartrazine dye, respectively. Foliar sprays for pest suppression were applied through both systems, and damage assessments were taken at the midpoint and end of the growing season. SSCDS sprays demonstrated similar levels of coverage on the adaxial leaf surface as airblast sprays, but significantly lower coverage on the abaxial surface. However, mean levels of foliar chemical deposition was generally higher in the SSCDS. Evaluations found minimal arthropod and fungal damage in both airblast and SSCDS treated plots compared to untreated trees. The SSCDS was shown to be a viable alternative to the airblast, with inherent advantages such as rapid application time and improved worker safety. Furthermore, higher deposition on SSCDS treated foliage supports the hypothesis that SSCDS provide a higher droplet capture rate in the canopy, with less off-target loss and drift than airblast sprayers.
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spelling doaj.art-6ae9a029a6f54e429767a444d7f3cfa32022-12-22T03:53:42ZengMDPI AGInsects2075-44502019-06-0110719310.3390/insects10070193insects10070193Season Long Pest Management Efficacy and Spray Characteristics of a Solid Set Canopy Delivery System in High Density ApplesPaul Owen-Smith0John Wise1Matthew J. Grieshop2Department of Entomology, Michigan State University, East Lansing, MI 48824, USADepartment of Entomology, Michigan State University, East Lansing, MI 48824, USADepartment of Entomology, Michigan State University, East Lansing, MI 48824, USASolid set canopy delivery systems (SSCDS) are a novel foliar agrochemical delivery system designed as an alternative for airblast sprayers in high density fruit production. This study tested the pest management potential, coverage, and chemical deposition of an SSCDS using commercially available microsprinkler components over the course of a growing season. Spray coverage and deposition for a representative airblast sprayer and SSCDS were evaluated using water sensitive paper and tartrazine dye, respectively. Foliar sprays for pest suppression were applied through both systems, and damage assessments were taken at the midpoint and end of the growing season. SSCDS sprays demonstrated similar levels of coverage on the adaxial leaf surface as airblast sprays, but significantly lower coverage on the abaxial surface. However, mean levels of foliar chemical deposition was generally higher in the SSCDS. Evaluations found minimal arthropod and fungal damage in both airblast and SSCDS treated plots compared to untreated trees. The SSCDS was shown to be a viable alternative to the airblast, with inherent advantages such as rapid application time and improved worker safety. Furthermore, higher deposition on SSCDS treated foliage supports the hypothesis that SSCDS provide a higher droplet capture rate in the canopy, with less off-target loss and drift than airblast sprayers.https://www.mdpi.com/2075-4450/10/7/193spray coveragespray depositionpesticide applicationSSCDStree fruit
spellingShingle Paul Owen-Smith
John Wise
Matthew J. Grieshop
Season Long Pest Management Efficacy and Spray Characteristics of a Solid Set Canopy Delivery System in High Density Apples
Insects
spray coverage
spray deposition
pesticide application
SSCDS
tree fruit
title Season Long Pest Management Efficacy and Spray Characteristics of a Solid Set Canopy Delivery System in High Density Apples
title_full Season Long Pest Management Efficacy and Spray Characteristics of a Solid Set Canopy Delivery System in High Density Apples
title_fullStr Season Long Pest Management Efficacy and Spray Characteristics of a Solid Set Canopy Delivery System in High Density Apples
title_full_unstemmed Season Long Pest Management Efficacy and Spray Characteristics of a Solid Set Canopy Delivery System in High Density Apples
title_short Season Long Pest Management Efficacy and Spray Characteristics of a Solid Set Canopy Delivery System in High Density Apples
title_sort season long pest management efficacy and spray characteristics of a solid set canopy delivery system in high density apples
topic spray coverage
spray deposition
pesticide application
SSCDS
tree fruit
url https://www.mdpi.com/2075-4450/10/7/193
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