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Systemic insecticides for control of stem gall wasp in highbush blueberry

The gall wasp, Hemadas nubilipennis Ashmead, is a pest of highbush and lowbush blueberry and can pose a challenge to control with foliar sprays due to adult activity being during bloom and because larval development is within plant tissues. We hypothesized that systemic insecticides that move within...

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Autores principales: DeVisser, Amber K, Vandervoort, Christine, Isaacs, Rufus, Wise, John
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10564264/
https://www.ncbi.nlm.nih.gov/pubmed/37598313
http://dx.doi.org/10.1093/jee/toad162
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author DeVisser, Amber K
Vandervoort, Christine
Isaacs, Rufus
Wise, John
author_facet DeVisser, Amber K
Vandervoort, Christine
Isaacs, Rufus
Wise, John
author_sort DeVisser, Amber K
collection PubMed
description The gall wasp, Hemadas nubilipennis Ashmead, is a pest of highbush and lowbush blueberry and can pose a challenge to control with foliar sprays due to adult activity being during bloom and because larval development is within plant tissues. We hypothesized that systemic insecticides that move within the blueberry vascular system would reach areas where H. nubilipennis eggs are laid, causing larval mortality. Three application methods, crown injection, soil drench, and foliar spray were applied to potted ‘Jersey’ blueberry bushes at 50% and 100% rates to quantify systemic residue concentrations in shoots and leaves. Additionally, systemic insecticides were evaluated for control of gall wasps using single-shoot bioassays and measuring larval mortality at 0.01%, 0.1%, 1%, and 10% of field rate provided within a floral pick. Systemic insecticides tested in both studies included imidacloprid, flupyradifurone, and spirotetramat. The potted bush residue study determined that insecticides moved from three tested sites of entry: the roots, crown cavity, and foliage. Results from the shoot bioassays found that the mean percent larval survival of H. nubilipennis was negatively correlated with the concentration of AI detected in galls. Imidacloprid and spirotetramat were found to have the greatest potential for control of H. nubilipennis due to mortality in the shoot bioassays and similar residue concentrations in the potted bush studies to shoot bioassays. Future research should evaluate systemic insecticides applied in highbush blueberry plantings for control of H. nubilipennis using the bioassay mortality assessment method developed in this study.
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spelling pubmed-105642642023-10-11 Systemic insecticides for control of stem gall wasp in highbush blueberry DeVisser, Amber K Vandervoort, Christine Isaacs, Rufus Wise, John J Econ Entomol Horticultural Entomology The gall wasp, Hemadas nubilipennis Ashmead, is a pest of highbush and lowbush blueberry and can pose a challenge to control with foliar sprays due to adult activity being during bloom and because larval development is within plant tissues. We hypothesized that systemic insecticides that move within the blueberry vascular system would reach areas where H. nubilipennis eggs are laid, causing larval mortality. Three application methods, crown injection, soil drench, and foliar spray were applied to potted ‘Jersey’ blueberry bushes at 50% and 100% rates to quantify systemic residue concentrations in shoots and leaves. Additionally, systemic insecticides were evaluated for control of gall wasps using single-shoot bioassays and measuring larval mortality at 0.01%, 0.1%, 1%, and 10% of field rate provided within a floral pick. Systemic insecticides tested in both studies included imidacloprid, flupyradifurone, and spirotetramat. The potted bush residue study determined that insecticides moved from three tested sites of entry: the roots, crown cavity, and foliage. Results from the shoot bioassays found that the mean percent larval survival of H. nubilipennis was negatively correlated with the concentration of AI detected in galls. Imidacloprid and spirotetramat were found to have the greatest potential for control of H. nubilipennis due to mortality in the shoot bioassays and similar residue concentrations in the potted bush studies to shoot bioassays. Future research should evaluate systemic insecticides applied in highbush blueberry plantings for control of H. nubilipennis using the bioassay mortality assessment method developed in this study. Oxford University Press 2023-08-20 /pmc/articles/PMC10564264/ /pubmed/37598313 http://dx.doi.org/10.1093/jee/toad162 Text en © The Author(s) 2023. Published by Oxford University Press on behalf of Entomological Society of America. https://creativecommons.org/licenses/by-nc/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (https://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com
spellingShingle Horticultural Entomology
DeVisser, Amber K
Vandervoort, Christine
Isaacs, Rufus
Wise, John
Systemic insecticides for control of stem gall wasp in highbush blueberry
title Systemic insecticides for control of stem gall wasp in highbush blueberry
title_full Systemic insecticides for control of stem gall wasp in highbush blueberry
title_fullStr Systemic insecticides for control of stem gall wasp in highbush blueberry
title_full_unstemmed Systemic insecticides for control of stem gall wasp in highbush blueberry
title_short Systemic insecticides for control of stem gall wasp in highbush blueberry
title_sort systemic insecticides for control of stem gall wasp in highbush blueberry
topic Horticultural Entomology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10564264/
https://www.ncbi.nlm.nih.gov/pubmed/37598313
http://dx.doi.org/10.1093/jee/toad162
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