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
25 Sep 2024
National producers of tart cherries and cranberries are reacting against a revision proposal by the U.S. Food and Drug Administration, which introduces radical changes in the classification of certain foods, including these nutrient-rich fruits.
03 Jul 2024
In an in-depth study conducted by the University of Budapest (Hungary), the effectiveness of trunk injections was evaluated using four different pesticides against Rhagoletis cerasi. Among these, acetamiprid emerged as the most promising candidate.
03 Jun 2026
Pea protein combined with sour cherry phenols can improve solubility, emulsion stability and nutritional value. The study points to fresh opportunities for plant-based emulsions, functional beverages and innovative nutraceutical formulations for sustainable food markets.
03 Jun 2026
In 2026 Uzbek cherries show lower volumes down 20-40%, but stronger quality: 26+ mm fruit, high Brix and export prices up to USD 7.40/kg. Premium cultivars, cold chain discipline and MAP packaging support growth in Russia, the Middle East and Europe across premium markets.
