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Jones R, Eady PE, Goddard MR, Fountain MT. The Efficacy of Yeast Phagostimulant Baits in Attract-and-Kill Strategies Varies between Summer- and Winter-Morphs of Drosophila suzukii. Insects 2022; 13:995. [PMID: 36354819 PMCID: PMC9696471 DOI: 10.3390/insects13110995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 10/27/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
Drosophila suzukii (Matsumura), is a globally invasive pest of soft and stone fruit. To survive winter in temperate zones it enters a reproductive diapause in a morphologically distinct phenotype. Phagostimulant baits can be combined with insecticides in attract-and-kill strategies for control. We investigated the effectiveness of single yeast species and combinations of co-fermented yeast phagostimulant baits when combined with insecticides in laboratory assays against both summer- and winter-morph D. suzukii. Candida zemplininia or Hanseniaspora uvarum + C. zemplininia combined with lambda-cyhalothrin or cyantraniliprole, and H. uvarum combined with cyantraniliprole caused significantly higher mortality in winter- compared to summer-morph D. suzukii. Additionally, lambda-cyhalothrin combined with M. pulcherrima + H. uvarum resulted in greater mortality compared to single yeasts, H. uvarum for both summer- and winter-morphs and C. zemplininia for summer-morphs. M. pulcherrima + H. uvarum with spinosad significantly reduced the time-to-kill (50%) of summer-morphs compared to insecticide alone. Most yeast-based baits were comparable in terms of attract-and-kill efficacy to Combi-protec, a commercially available bait, although M. pulcherrima or H. uvarum + C. zemplininia in with cyantraniliprole were less effective. Our study suggests that yeast phagostimulants in attract-and-kill strategies should be adjusted for summer- and winter-morph D. suzukii for more effective control.
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Affiliation(s)
- Rory Jones
- School of Life Sciences, University of Lincoln, Lincoln LN6 7DL, UK
- NIAB, East Malling, Kent ME19 6BJ, UK
| | - Paul E. Eady
- School of Life Sciences, University of Lincoln, Lincoln LN6 7DL, UK
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Fanning P, Lanka S, Mermer S, Collins J, Van Timmeren S, Andrews H, Hesler S, Loeb G, Drummond F, Wiman NG, Walton V, Sial AA, Isaacs R. Field and Laboratory Testing of Feeding Stimulants to Enhance Insecticide Efficacy Against Spotted-Wing Drosophila, Drosophila suzukii (Matsumura). J Econ Entomol 2021; 114:1638-1646. [PMID: 34021580 DOI: 10.1093/jee/toab084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Indexed: 06/12/2023]
Abstract
The invasive spotted-wing drosophila, Drosophila suzukii (Matsumura), is a key insect pest of berries globally, causing lost revenues and increased production costs associated with applications of insecticides. The insecticides utilized are commonly broad-spectrum pyrethroids, organophosphates, or carbamates in conventionally managed fields and spinosad in organically managed fields. Adoption of more selective insecticides has been limited due to their lower residual activity, and the requirement that some must be ingested to be effective. We investigated the use of feeding stimulants for D. suzukii as a method to improve longevity and efficacy in a range of insecticides. In laboratory bioassays, sugar increased the efficacy of all chemical classes tested; however, the inclusion of yeast only showed a benefit with malathion. Feeding stimulants had a limited effect in some cases under field conditions. Similarly, infestation in field plots and a semifield bioassay showed no significant decreases in infestation with the inclusion of feeding stimulants for the insecticides tested in these trials. We discuss the implications of these findings for managing D. suzukii in fruit crops to help ensure the harvest of marketable fruit.
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Affiliation(s)
- Philip Fanning
- School of Biology and Ecology, University of Maine, Orono, ME 04469, USA
| | - Srinivas Lanka
- Department of Entomology, Kansas State University, Manhattan, KS 66506, USA
| | - Serhan Mermer
- Department of Horticulture, Oregon State University, 4017 Agriculture and Life Sciences Building, Corvallis, OR 97331, USA
| | - Judith Collins
- School of Biology and Ecology, University of Maine, Orono, ME 04469, USA
| | - Steven Van Timmeren
- Department of Entomology, Michigan State University, 578 Wilson Road, East Lansing, MI 48824, USA
| | - Heather Andrews
- North Willamette Research and Extension Center, Oregon State University, Aurora, Oregon 97002, and USA
| | - Stephen Hesler
- Department of Entomology, Cornell AgriTech, Cornell University, 15 W. Castle Creed Drive, Geneva, NY 14456, USA
| | - Gregory Loeb
- Department of Entomology, Cornell AgriTech, Cornell University, 15 W. Castle Creed Drive, Geneva, NY 14456, USA
| | - Francis Drummond
- School of Biology and Ecology, University of Maine, Orono, ME 04469, USA
| | - Nik G Wiman
- North Willamette Research and Extension Center, Oregon State University, Aurora, Oregon 97002, and USA
| | - Vaughn Walton
- Department of Horticulture, Oregon State University, 4017 Agriculture and Life Sciences Building, Corvallis, OR 97331, USA
| | - Ashfaq A Sial
- Department of Entomology, University of Georgia, 413 Biological Sciences Building, Athens, GA 30602, USA
| | - Rufus Isaacs
- Department of Entomology, Michigan State University, 578 Wilson Road, East Lansing, MI 48824, USA
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Knight AL, Basoalto E, Yee W, Hilton R, Kurtzman CP. Adding yeasts with sugar to increase the number of effective insecticide classes to manage Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) in cherry. Pest Manag Sci 2016; 72:1482-90. [PMID: 26454150 DOI: 10.1002/ps.4171] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 10/06/2015] [Accepted: 10/07/2015] [Indexed: 05/25/2023]
Abstract
BACKGROUND Drosophila suzukii is a major pest of cherry in the western United States. We evaluated whether the addition of sugary baits could improve the efficacy of two classes of insecticides not considered to be sufficiently effective for this pest, diamides and spinosyns, in laboratory and field trials in cherry. RESULTS Adding cane sugar alone or in combination with the yeasts Saccharomyces cerevisiae or Aureobasidium pullulans significantly improved insecticide efficacy. However, the significance of adding yeasts to the sugar plus insecticide on fly mortality varied with respect to both the insecticide and yeast species. The addition of S. cerevisiae to sugar also did not significantly reduce egg densities in fruit compared with sugar alone. The addition of a yeast plus sugar significantly reduced egg densities in three field trials with cyantraniliprole and in two out of three trials with spinosad. CONCLUSION The addition of cane sugar with or without yeast can improve the effectiveness of diamide and spinosyn insecticides for D. suzukii in cherry. Inclusion of these two insecticides in D. suzukii management programs may alleviate the strong selection pressure currently being imposed on a few mode-of-action insecticide classes used by growers to maintain fly suppression over long continuous harvest periods of mixed cultivars. Published 2015. This article is a U.S. Government work and is in the public domain in the USA.
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Affiliation(s)
- Alan L Knight
- Yakima Agricultural Research Laboratory, Agricultural Research Service, USDA, Wapato, WA, USA
| | - Esteban Basoalto
- Instituto de Producción y Sanidad Vegetal, Facultad de Ciencias Agrarias, Universidad Austral de Chile, Valdivia, Chile
| | - Wee Yee
- Yakima Agricultural Research Laboratory, Agricultural Research Service, USDA, Wapato, WA, USA
| | - Rick Hilton
- Southern Oregon Research and Extension Center, Oregon State University, Medford, OR, USA
| | - Cletus P Kurtzman
- Bacterial Foodborne Pathogens and Mycology Research Unit, Agricultural Research Service, USDA, Peoria, IL, USA
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Mori BA, Whitener AB, Leinweber Y, Revadi S, Beers EH, Witzgall P, Becher PG. Enhanced yeast feeding following mating facilitates control of the invasive fruit pestDrosophila suzukii. J Appl Ecol 2016. [DOI: 10.1111/1365-2664.12688] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Boyd A. Mori
- Department of Plant Protection Biology; Swedish University of Agricultural Sciences; Box 102 23053 Alnarp Sweden
| | - Alix B. Whitener
- Department of Entomology; WSU Tree Fruit Research and Extension Center; 1100 N. Western Avenue Wenatchee WA 98801 USA
| | - Yannick Leinweber
- Department of Plant Protection Biology; Swedish University of Agricultural Sciences; Box 102 23053 Alnarp Sweden
| | - Santosh Revadi
- Department of Plant Protection Biology; Swedish University of Agricultural Sciences; Box 102 23053 Alnarp Sweden
| | - Elizabeth H. Beers
- Department of Entomology; WSU Tree Fruit Research and Extension Center; 1100 N. Western Avenue Wenatchee WA 98801 USA
| | - Peter Witzgall
- Department of Plant Protection Biology; Swedish University of Agricultural Sciences; Box 102 23053 Alnarp Sweden
| | - Paul G. Becher
- Department of Plant Protection Biology; Swedish University of Agricultural Sciences; Box 102 23053 Alnarp Sweden
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