Deterrent Effects of Essential Oils on Spotted-Wing Drosophila (<i>Drosophila suzukii</i>): Implications for Organic Management in Berry Crops

Due to concerns about frequent applications of spinosad and other broad spectrum insecticides for managing spotted-wing drosophila (<i>Drosophila suzukii</i> Matsumura, SWD), we investigated the use of essential oils as an alternative to current insecticides. Essential oils from a number...

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Main Authors: Matthew Gullickson, Claire Flavin Hodge, Adrian Hegeman, Mary Rogers
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Insects
Subjects:
Online Access:https://www.mdpi.com/2075-4450/11/8/536
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author Matthew Gullickson
Claire Flavin Hodge
Adrian Hegeman
Mary Rogers
author_facet Matthew Gullickson
Claire Flavin Hodge
Adrian Hegeman
Mary Rogers
author_sort Matthew Gullickson
collection DOAJ
description Due to concerns about frequent applications of spinosad and other broad spectrum insecticides for managing spotted-wing drosophila (<i>Drosophila suzukii</i> Matsumura, SWD), we investigated the use of essential oils as an alternative to current insecticides. Essential oils from a number of plant species have been studied for their attraction and deterrence of SWD. However, these botanical products have not been thoroughly tested in the field. We conducted laboratory and field studies to determine the efficacy of botanical products, including lavender (<i>Lavandula angustifolia</i> Mill.) oil, catnip (<i>Nepeta cataria</i> L.) oil, KeyPlex Ecotrol<sup>®</sup> PLUS, and KeyPlex Sporan<sup>®</sup> EC<sup>2</sup> on preventing SWD infestation in raspberry (<i>Rubus idaeus</i> L.) and blueberry (<i>Vaccinium</i><i>corymbosum</i> L.) crops. In a two-choice laboratory bioassay, lavender oil, Ecotrol, and Sporan treatments deterred SWD from a yeast-cornmeal-sugar based fly diet. In the field trials, raspberry fruit treated with Ecotrol had lower SWD infestation (6%), compared to the control (17%), and was comparable to spinosad (6%). No differences were seen in blueberry infestation. The combination of essential oils in Ecotrol may work to decrease SWD fruit infestation under certain conditions in the field, however more research is needed on the longevity of these products.
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spelling doaj.art-c6373d3f5f1e42ec9fc1d2428e038b562023-11-20T10:17:07ZengMDPI AGInsects2075-44502020-08-0111853610.3390/insects11080536Deterrent Effects of Essential Oils on Spotted-Wing Drosophila (<i>Drosophila suzukii</i>): Implications for Organic Management in Berry CropsMatthew Gullickson0Claire Flavin Hodge1Adrian Hegeman2Mary Rogers3Horticultural Science Department, University of Minnesota, 1970 Folwell Ave, Saint Paul, MN 55108, USAHorticultural Science Department, University of Minnesota, 1970 Folwell Ave, Saint Paul, MN 55108, USAHorticultural Science Department, University of Minnesota, 1970 Folwell Ave, Saint Paul, MN 55108, USAHorticultural Science Department, University of Minnesota, 1970 Folwell Ave, Saint Paul, MN 55108, USADue to concerns about frequent applications of spinosad and other broad spectrum insecticides for managing spotted-wing drosophila (<i>Drosophila suzukii</i> Matsumura, SWD), we investigated the use of essential oils as an alternative to current insecticides. Essential oils from a number of plant species have been studied for their attraction and deterrence of SWD. However, these botanical products have not been thoroughly tested in the field. We conducted laboratory and field studies to determine the efficacy of botanical products, including lavender (<i>Lavandula angustifolia</i> Mill.) oil, catnip (<i>Nepeta cataria</i> L.) oil, KeyPlex Ecotrol<sup>®</sup> PLUS, and KeyPlex Sporan<sup>®</sup> EC<sup>2</sup> on preventing SWD infestation in raspberry (<i>Rubus idaeus</i> L.) and blueberry (<i>Vaccinium</i><i>corymbosum</i> L.) crops. In a two-choice laboratory bioassay, lavender oil, Ecotrol, and Sporan treatments deterred SWD from a yeast-cornmeal-sugar based fly diet. In the field trials, raspberry fruit treated with Ecotrol had lower SWD infestation (6%), compared to the control (17%), and was comparable to spinosad (6%). No differences were seen in blueberry infestation. The combination of essential oils in Ecotrol may work to decrease SWD fruit infestation under certain conditions in the field, however more research is needed on the longevity of these products.https://www.mdpi.com/2075-4450/11/8/536integrated pest management<i>Rubus idaeus</i>small fruit<i>Vaccinium corymbosum</i>volatile organic compounds
spellingShingle Matthew Gullickson
Claire Flavin Hodge
Adrian Hegeman
Mary Rogers
Deterrent Effects of Essential Oils on Spotted-Wing Drosophila (<i>Drosophila suzukii</i>): Implications for Organic Management in Berry Crops
Insects
integrated pest management
<i>Rubus idaeus</i>
small fruit
<i>Vaccinium corymbosum</i>
volatile organic compounds
title Deterrent Effects of Essential Oils on Spotted-Wing Drosophila (<i>Drosophila suzukii</i>): Implications for Organic Management in Berry Crops
title_full Deterrent Effects of Essential Oils on Spotted-Wing Drosophila (<i>Drosophila suzukii</i>): Implications for Organic Management in Berry Crops
title_fullStr Deterrent Effects of Essential Oils on Spotted-Wing Drosophila (<i>Drosophila suzukii</i>): Implications for Organic Management in Berry Crops
title_full_unstemmed Deterrent Effects of Essential Oils on Spotted-Wing Drosophila (<i>Drosophila suzukii</i>): Implications for Organic Management in Berry Crops
title_short Deterrent Effects of Essential Oils on Spotted-Wing Drosophila (<i>Drosophila suzukii</i>): Implications for Organic Management in Berry Crops
title_sort deterrent effects of essential oils on spotted wing drosophila i drosophila suzukii i implications for organic management in berry crops
topic integrated pest management
<i>Rubus idaeus</i>
small fruit
<i>Vaccinium corymbosum</i>
volatile organic compounds
url https://www.mdpi.com/2075-4450/11/8/536
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