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
08 Sep 2025
A study by the University of Life Sciences in Bydgoszcz shows that Fresh Inset’s Vidre+ technology, with controlled 1-MCP release inside packaging, keeps cherries fresh for up to 21 days, improving firmness, preserving stem colour and enhancing overall fruit quality.
26 Sep 2025
A Greek study has developed a predictive model to estimate nutrient loss in cherry orchards. Based only on fresh fruit yield data, it enables more accurate and sustainable fertilization management while actively promoting recycling of pruning and leaf residues.
08 Dec 2025
In Northern Michigan, American kestrels help cherry growers by scaring off fruit-eating birds. This reduces crop contamination and improves food safety. A low-cost, eco-friendly solution that supports sustainable agriculture and protects harvests.
08 Dec 2025
South Africa’s cherry season launches with a 2025 campaign built on emotion, lifestyle and premium quality. By emphasising seasonality, wellness appeal, freshness and social content, the industry aims to make cherries the summer hero. An invitation to boost digital engagement.
