Behavioral Responses of Drosophila suzukii (Diptera: Drosophilidae) to Blends of Synthetic Fruit Volatiles Combined With Isoamyl Acetate and β-Cyclocitral

Abstract

Baits and lures for trapping and monitoring the invasive vinegar fly Drosophila suzukii Matsumura (Diptera: Drosophilidae) are currently derived from fermentation volatiles. Volatile organic compounds from alternative sources could improve monitoring efforts and optimize capture of gravid females. Through electroantennography and behavioral assays, we evaluated male and female D. suzukii responses to blends of selected synthetic fruit volatiles in combination with the fruit compound isoamyl acetate and the strawberry leaf terpenoid β-cyclocitral. Blends that were attractive to both male and female D. suzukii were then evaluated for attractiveness to a non-target drosophilid, Drosophila melanogaster. A simple 3-component blend of isoamyl acetate, β-cyclocitral and methyl butyrate was attractive to D. suzukii, particularly females, relative to fresh blueberry volatiles. The 3-component blend was not attractive to D. melanogaster. Additional research is needed to determine the effectiveness of this blend to attract D. suzukii under field conditions.

Feriez-vous du mal à une mouche ? Une introduction à Drosophila suzukii et aux méthodes alternatives pour contrôler cette espèce invasive.

“…Attractiveness like wine and vinegar blend (Cha et al, 2012(Cha et al, , 2014 More attractive than apple cider vinegar (Cha et al, 2018) More selective for non-target insects (Cha et al, 2015) Ethanol and acetoin As attractive as wine and vinegar (Galland et al, 2020) Fermented apple juice Acetic acid, acetoin, ethyl octanoate, ethyl acetate and phenetyl alcohol More attractant than apple cider vinegar (Larson et al, 2020) More attractive than acetic acid, acetoin, ethanol, and methionol (Larson et al, 2021) These lure simplifications increase the attractiveness of D. suzukii by using volatiles produced by host plants and fruits (Abraham et al, 2015;Baena et al, 2022;Bolton et al, 2019Bolton et al, , 2022Dewitte et al, 2021;Keesey et al, 2015;Liu et al, 2018;Revadi, Vitagliano, et al, 2015;Urbaneja-Bernat et al, 2021), yeasts (Bueno et al, 2019;Jones et al, 2021;Lasa et al, 2019;Mori et al, 2017;Rehermann et al, 2022;Scheidler et al, 2015), acetic (Alawamleh et al, 2021;Ðurović et al, 2021) and lactic bacteria (Mazzetto, Gonella, et al, 2016).…”

Effect of Piper auritum extract on attraction of Drosophila suzukii

“…Chemical control is the main control method used against D. suzukii, and so it is necessary to search for and develop effective traps and attractants for use in monitoring and control systems for this pest (Beers et al, 2011;Bruck et al, 2011;Cini et al, 2012;Grassi et al, 2009;Ioriatti et al, 2015;Lee, Bruck, Dreves, et al, 2011). To date, the specificity of the traps and baits that are commercially available for this pest is relatively limited, and they capture a large number of non-target insects (Bolton et al, 2022). Monitoring methods for this pest are based on baits such as vinegar, wine, host fruits, juices, yeasts, and combinations of these (Abraham et al, 2015;Burrack et al, 2015;Cha et al, 2012Cha et al, , 2013Cha et al, , 2015Cha et al, , 2017Feng et al, 2018;Landolt et al, 2012;Liu et al, 2018;Mazzetto et al, 2016;Revadi et al, 2015).…”