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Pneumatic spray delivery‐based solid set canopy delivery system for oblique banded leaf roller and codling moth control in a high‐density modern apple orchard

BACKGROUND: Pneumatic spray delivery (PSD)‐based solid set canopy delivery systems (SSCDS) have demonstrated comparable spray deposition and reduced off‐target drift compared with axial‐fan airblast sprayers in high‐density apple orchards. An important next step is to quantify whether PSD‐based SSCD...

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Autores principales: Sahni, Ramesh K., Ranjan, Rakesh, Hoheisel, Gwen‐Alyn, Khot, Lav R., Beers, Elizabeth H., Grieshop, Matthew J.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley & Sons, Ltd. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9805226/
https://www.ncbi.nlm.nih.gov/pubmed/35895013
http://dx.doi.org/10.1002/ps.7099
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author Sahni, Ramesh K.
Ranjan, Rakesh
Hoheisel, Gwen‐Alyn
Khot, Lav R.
Beers, Elizabeth H.
Grieshop, Matthew J.
author_facet Sahni, Ramesh K.
Ranjan, Rakesh
Hoheisel, Gwen‐Alyn
Khot, Lav R.
Beers, Elizabeth H.
Grieshop, Matthew J.
author_sort Sahni, Ramesh K.
collection PubMed
description BACKGROUND: Pneumatic spray delivery (PSD)‐based solid set canopy delivery systems (SSCDS) have demonstrated comparable spray deposition and reduced off‐target drift compared with axial‐fan airblast sprayers in high‐density apple orchards. An important next step is to quantify whether PSD‐based SSCDS can provide effective pest management. This study evaluated the biological efficacy of this fixed spray system variant and compared it with that of an axial‐fan airblast sprayer. Partial field trials were conducted in a commercial apple orchard (cv. Jazz) trained in tall spindle architecture. Insecticides were applied at a rate of 935 L ha(−1) (100 gallons per acre) for both application systems. Twenty‐four hours after spraying, leaves and fruits were collected to prepare the laboratory bioassays enabling evaluation of efficacy against obliquebanded leafroller (OBLR) and codling moth (CM). RESULTS: OBLR mortality for SSCDS, airblast sprayer and untreated control treatments after 24 h of larval exposure was 91%, 98% and 4%, respectively and increased to 98%, 100% and 19% after 48 h. First‐instar CM leaf bioassay mortality was 100% for SSCDS and airblast sprayer treatment, and 13% for the untreated control at 24 h post exposure. Larval CM mortality on fruit was 100% for SSCDS and airblast sprayer treatments, and 33% on the untreated control. CONCLUSIONS: Insecticides applied using SSCDS and an airblast sprayer had comparable larval mortality in all three assays, significantly higher than the untreated controls. These results suggest that PSD‐based SSCDS may provide a viable alternative to axial‐fan airblast sprayers in high‐density apple orchards. © 2022 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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spelling pubmed-98052262023-01-06 Pneumatic spray delivery‐based solid set canopy delivery system for oblique banded leaf roller and codling moth control in a high‐density modern apple orchard Sahni, Ramesh K. Ranjan, Rakesh Hoheisel, Gwen‐Alyn Khot, Lav R. Beers, Elizabeth H. Grieshop, Matthew J. Pest Manag Sci Research Articles BACKGROUND: Pneumatic spray delivery (PSD)‐based solid set canopy delivery systems (SSCDS) have demonstrated comparable spray deposition and reduced off‐target drift compared with axial‐fan airblast sprayers in high‐density apple orchards. An important next step is to quantify whether PSD‐based SSCDS can provide effective pest management. This study evaluated the biological efficacy of this fixed spray system variant and compared it with that of an axial‐fan airblast sprayer. Partial field trials were conducted in a commercial apple orchard (cv. Jazz) trained in tall spindle architecture. Insecticides were applied at a rate of 935 L ha(−1) (100 gallons per acre) for both application systems. Twenty‐four hours after spraying, leaves and fruits were collected to prepare the laboratory bioassays enabling evaluation of efficacy against obliquebanded leafroller (OBLR) and codling moth (CM). RESULTS: OBLR mortality for SSCDS, airblast sprayer and untreated control treatments after 24 h of larval exposure was 91%, 98% and 4%, respectively and increased to 98%, 100% and 19% after 48 h. First‐instar CM leaf bioassay mortality was 100% for SSCDS and airblast sprayer treatment, and 13% for the untreated control at 24 h post exposure. Larval CM mortality on fruit was 100% for SSCDS and airblast sprayer treatments, and 33% on the untreated control. CONCLUSIONS: Insecticides applied using SSCDS and an airblast sprayer had comparable larval mortality in all three assays, significantly higher than the untreated controls. These results suggest that PSD‐based SSCDS may provide a viable alternative to axial‐fan airblast sprayers in high‐density apple orchards. © 2022 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry. John Wiley & Sons, Ltd. 2022-08-13 2022-11 /pmc/articles/PMC9805226/ /pubmed/35895013 http://dx.doi.org/10.1002/ps.7099 Text en © 2022 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Sahni, Ramesh K.
Ranjan, Rakesh
Hoheisel, Gwen‐Alyn
Khot, Lav R.
Beers, Elizabeth H.
Grieshop, Matthew J.
Pneumatic spray delivery‐based solid set canopy delivery system for oblique banded leaf roller and codling moth control in a high‐density modern apple orchard
title Pneumatic spray delivery‐based solid set canopy delivery system for oblique banded leaf roller and codling moth control in a high‐density modern apple orchard
title_full Pneumatic spray delivery‐based solid set canopy delivery system for oblique banded leaf roller and codling moth control in a high‐density modern apple orchard
title_fullStr Pneumatic spray delivery‐based solid set canopy delivery system for oblique banded leaf roller and codling moth control in a high‐density modern apple orchard
title_full_unstemmed Pneumatic spray delivery‐based solid set canopy delivery system for oblique banded leaf roller and codling moth control in a high‐density modern apple orchard
title_short Pneumatic spray delivery‐based solid set canopy delivery system for oblique banded leaf roller and codling moth control in a high‐density modern apple orchard
title_sort pneumatic spray delivery‐based solid set canopy delivery system for oblique banded leaf roller and codling moth control in a high‐density modern apple orchard
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9805226/
https://www.ncbi.nlm.nih.gov/pubmed/35895013
http://dx.doi.org/10.1002/ps.7099
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