Agricultural landscape affects sex‐specific differences in the abundance of Drosophila suzukii in raspberry orchards

Abstract

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The effects of non‐crop habitat on spotted wing drosophila (Drosophila suzukii) abundance in fruit systems: A meta‐analysis

“…Even in commercial high‐tunnel systems, netting reduced D. suzukii oviposition and delayed the impact on fruit by up to 3 weeks (Leach et al, 2016). Netting could be deployed as a vertical barrier around the crop margins at the start of the cropping season, limiting entry of low‐flying D. suzukii from the non‐crop habitat while allowing pollinator access over the top (Cini et al, 2012; Groot et al, 2021; Leach et al, 2016). However, without a roof barrier meeting these mesh borders, the effect on D. suzukii populations within the crop and related fruit damage can be limited.…”

“…Recommendations for management of non‐crop habitats surrounding fruit crops warrant more research as these areas support natural enemies important for predation and parasitism of a variety of pests (Holland & Fahrig, 2000; Marshall & Moonen, 2002; Veres et al, 2013) and increases biodiversity on the neighbouring farmlands (Garratt et al, 2017; Groot et al, 2021; Haro‐Barchin et al, 2018; Montgomery et al, 2020).…”

Integrated management of Drosophila suzukii

“…We found that D. suzukii adults had higher population density, even up to ten times more, in the forest border than inside the vineyard. This observation aligns with findings reported in the literature that D. suzukii prefers the surrounding vegetation (Briem et al, 2018;Groot et al, 2021;Ioriatti et al, 2015;Mazzetto et al, 2020;Santoiemma, Trivellato, Caloi, Mori, & Marini, 2019;Weißinger, Samuel, et al, 2019;Weißinger, Schrieber, et al, 2019). However, during the grape ripening, females tended to migrate into the vineyards.…”

“…In this study, it is possible to observe that although occurring in the same period, the population peaks were different between the observed years. This may be related to the climatic conditions and phenological grape stage, which can change each year, as observed by Groot et al (2021) through monitoring in raspberry orchards in Slovenia. In the second year of our study, we noted a reduction in relative humidity and an increase in temperature during the ripening period compared to the first year.…”

“…The abundance of D. suzukii can be dependent on the type of habitat (Groot et al, 2021). Forest borders can provide habitat as well as microclimatic conditions favorable for D. suzukii reproduction and development (Briem et al, 2018;Weißinger, Schrieber, Breuer, & Müller, 2019).…”