The NIAB's recent investigations into Drosophila spotted-wing (SWD) - the invasive fly that has revolutionised the fruit industry - are explained by Dr Michelle Fountain. This small fly has a unique behaviour, preferring to lay its eggs in unripe fruit, leading to considerable crop losses, up to 90%.
The initial invasion of SWD in the UK triggered an educational effort among fruit growers, but early control attempts relied mainly on insecticides, disrupting established biological methods. New research by the NIAB, however, offers innovative perspectives. SWD was found not to be competitive with other species that lay their eggs in softer fruit, opening the way for potential future controls.
In Europe, the introduction of commercial parasitoids is one solution, but in the UK, NIAB has focused research on analysing the contribution of native parasitoids, which are often restricted in crops due to pesticide use. One interesting approach involves trapping SWD in surrounding areas during autumn and winter, taking advantage of the fly's period of activity.
The collaboration with BigSis demonstrates a promising approach, using X-rays to sterilise flies. Projects with Russell IPM and Microbiotech are developing strategies that combine reduced doses of insecticides with attractive baits, significantly reducing pesticide use and environmental impact.
Despite the challenges, research and innovation are shaping the future of SWD control in the UK fruit industry. Diversification of control strategies, including automation, is becoming crucial to address changes in pest conditions and populations.
Read the full article: Hortidaily
Image: Hortidaily
13 Feb 2026
A joint study by Turkish institutes and the Islamia University of Bahawalpur (Pakistan) compares three sweet cherry drying technologies: MWD, MWHAD and Solar Tunnel Drying. Drying time, color, sugars, organic acids and phenolic compounds were evaluated for quality.
04 Jul 2024
International competition, labour shortages and climate change keep growers on their toes. On the bright side, new partnerships and technology, including TikTok, can help offset the challenges growers face.
26 Feb 2026
From 3D LiDAR flower quantification to price elasticity and retail margins in Washington, California and Canada, this analysis explores how pollinators, seasonal supply constraints and in-store strategies shape cherry volumes, pricing dynamics and long-term market value.
26 Feb 2026
In Chile, integrating biodiversity and natural habitats into apple and cherry orchards increases fruit set, size and long-term stability. Research by PUCV shows that native vegetation and wild pollinators improve yield and quality without expanding cultivated land.
