Liquid Baits with Oenococcus oeni Increase Captures of Drosophila suzukii
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Research and Innovation Centre, Fondazione Edmund Mach, 38010 San Michele all’Adige, Italy
2
Biobest Group NV, Ilse Velden, 2260 Westerlo, Belgium
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Department of Agricultural, Environmental and Food Sciences, University of Molise, 86100 Campobasso, Italy
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Technology Transfer Centre, Fondazione Edmund Mach, 38010 San Michele all’Adige, Italy
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Department of Horticulture, Oregon State University, 4017 Ag and Life Sciences Bldg., Corvallis, OR 97331, USA
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Biosecurity Group, The New Zealand Institute for Plant and Food Research Limited, PB 4704, Christchurch 8140, New Zealand
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School of Biological Sciences, The University of Auckland, Auckland 1010, New Zealand
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Faculty of Science and Technology, Free University of Bozen-Bolzano, Piazza Università 5, 39100 Bozen-Bolzano, Italy
9
Centre Agriculture Food Environment (C3A), University of Trento, 38100 San Michele all’Adige, Italy
*
Author to whom correspondence should be addressed.
Insects 2021, 12(1), 66; https://doi.org/10.3390/insects12010066
Received: 13 November 2020
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Revised: 17 December 2020
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Accepted: 23 December 2020
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Published: 13 January 2021
(This article belongs to the Special Issue Behavioral Manipulation for Pest Control)
Simple Summary
Among the challenges arising from climate change and the transformation of agroecosystems is that agricultural production is heavily affected by invasive insect species. Invasive insects can establish in new areas where their development can progress due to a suitable climate and lack of natural enemies. Farmers have few options to mitigate those insects’ attacks. Current control tactics using pesticides must be replaced with more sustainable methods to counter invasive insect species. We approached the control of the invasive spotted-wing drosophila Drosophila suzukii, using a baiting system that manipulates insect behavior without use of toxic or non-sustainable chemicals. The results of our work are utilized for the monitoring and mass trapping of this devastating invasive species. In our innovative smart-design trap system, we use odors that attract flies and decrease damage in open field scenarios. Our trapping system can efficiently detect the first spring arrival of D. suzukii in agricultural fields and as a such, represents a good early monitoring tool. We conducted four years of laboratory and open-field trials in different berry crops. As a source of odor attraction, we used a mixture of wine, apple cider vinegar, and different commercially available strains of lactic acid bacteria.
The spotted-wing drosophila (SWD), Drosophila suzukii Matsumura (Diptera: Drosophilidae), native to Eastern Asia, is an invasive alien species in Europe and the Americas, where it is a severe pest of horticultural crops, including soft fruits and wine grapes. The conventional approach to controlling infestations of SWD involves the use of insecticides, but the frequency of application for population management is undesirable. Consequently, alternative strategies are urgently needed. Effective and improved trapping is important as an early risk detection tool. This study aimed to improve Droskidrink® (DD), a commercially available attractant for SWD. We focused on the chemical and behavioral effects of adding the bacterium Oenococcus oeni (Garvie) to DD and used a new trap design to enhance the effects of attractive lures. We demonstrate that microbial volatile compounds produced by O. oeni are responsible for the increase in the attractiveness of the bait and could be later utilized for the development of a better trapping system. Our results showed that the attractiveness of DD was increased up to two-fold by the addition of commercially available O. oeni when combined with an innovative trap design. The new trap-bait combination increased the number of male and especially female catches at low population densities.
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Keywords:
spotted-wing drosophila; invasive species; feeding attractant; lactic acid bacteria; insect trapping; fruit fly lure; volatile organic compounds
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MDPI and ACS Style
Ðurović, G.; Alawamleh, A.; Carlin, S.; Maddalena, G.; Guzzon, R.; Mazzoni, V.; Dalton, D.T.; Walton, V.M.; Suckling, D.M.; Butler, R.C.; Angeli, S.; De Cristofaro, A.; Anfora, G. Liquid Baits with Oenococcus oeni Increase Captures of Drosophila suzukii. Insects 2021, 12, 66. https://doi.org/10.3390/insects12010066
AMA Style
Ðurović G, Alawamleh A, Carlin S, Maddalena G, Guzzon R, Mazzoni V, Dalton DT, Walton VM, Suckling DM, Butler RC, Angeli S, De Cristofaro A, Anfora G. Liquid Baits with Oenococcus oeni Increase Captures of Drosophila suzukii. Insects. 2021; 12(1):66. https://doi.org/10.3390/insects12010066
Chicago/Turabian StyleÐurović, Gordana, Amani Alawamleh, Silvia Carlin, Giuseppe Maddalena, Raffaele Guzzon, Valerio Mazzoni, Daniel T. Dalton, Vaughn M. Walton, David M. Suckling, Ruth C. Butler, Sergio Angeli, Antonio De Cristofaro, and Gianfranco Anfora. 2021. "Liquid Baits with Oenococcus oeni Increase Captures of Drosophila suzukii" Insects 12, no. 1: 66. https://doi.org/10.3390/insects12010066
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