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Field and greenhouse application of an attract-and-kill formulation based on the yeast Hanseniaspora uvarum and the insecticide spinosad to control Drosophila suzukii in grapes

Spitaler, Urban and Cossu, Carlo S. and Delle Donne, Lorenz and Bianchi, Flavia and Rehermann, Guillermo and Eisenstecken, Daniela and Castellan, Irene and Dumenil, Claire and Angeli, Sergio and Robatscher, Peter and Becher, Paul and Koschier, Elisabeth H. and Schmidt, Silvia (2022). Field and greenhouse application of an attract-and-kill formulation based on the yeast Hanseniaspora uvarum and the insecticide spinosad to control Drosophila suzukii in grapes. Pest Management Science. 78 :3 , 1287-1295
[Research article]

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Abstract

BACKGROUND The invasive insect Drosophila suzukii (Matsumura) is an important pest of several red grape varieties. The yeast Hanseniaspora uvarum (Niehaus), which is associated with D. suzukii, strongly attracts flies and stimulates them to feed on yeast-laden food. In the present study, a formulation based on H. uvarum culture with spinosad insecticide was applied to the foliage of vineyards and control of D. suzukii was compared to applying spinosad to the whole plant. After successful H. uvarum and insecticide application in the vineyard, we tested additional H. uvarum-based formulations with spinosad in a greenhouse to determine their capacity to control D. suzukii. RESULTS Application of the H. uvarum-spinosad formulation at 36.4 g of spinosad per hectare reduced the D. suzukii field infestation at the same rate as applying 120 g of spinosad per hectare and prevented spinosad residues on grapes. Leaves treated with H. uvarum and spinosad in the field and transferred to a laboratory assay caused high mortality to flies and reduced the number of eggs laid on fruits. Formulations with spinosad applied in the greenhouse showed that both H. uvarum culture and the yeast cell-free supernatant of a centrifuged culture increased fly mortality and reduced the number of eggs laid compared to the unsprayed control. CONCLUSION In comparison to typical spinosad spray applications, the use of H. uvarum in combination with spinosad as an attract-and-kill formulation against D. suzukii reduces pesticide residues on the fruits by targeting the treatment to the canopy and decreasing the amount of insecticide per hectare without compromising control efficacy.

Authors/Creators:Spitaler, Urban and Cossu, Carlo S. and Delle Donne, Lorenz and Bianchi, Flavia and Rehermann, Guillermo and Eisenstecken, Daniela and Castellan, Irene and Dumenil, Claire and Angeli, Sergio and Robatscher, Peter and Becher, Paul and Koschier, Elisabeth H. and Schmidt, Silvia
Title:Field and greenhouse application of an attract-and-kill formulation based on the yeast Hanseniaspora uvarum and the insecticide spinosad to control Drosophila suzukii in grapes
Series Name/Journal:Pest Management Science
Year of publishing :2022
Volume:78
Number:3
Page range:1287-1295
Number of Pages:9
Publisher:JOHN WILEY AND SONS LTD
ISSN:1526-498X
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
Keywords:grapes, integrated pest management, invasive fruit pest, precision agriculture, spotted wing drosophila
URN:NBN:urn:nbn:se:slu:epsilon-p-115060
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-115060
Additional ID:
Type of IDID
DOI10.1002/ps.6748
Web of Science (WoS)000730206000001
ID Code:27168
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(LTJ, LTV) > Department of Plant Protection Biology
Deposited By: SLUpub Connector
Deposited On:21 Feb 2022 15:23
Metadata Last Modified:21 Feb 2022 15:31

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