A new biocontrol product, Axpera, has delivered impressive results in combating downy mildew in vineyards, demonstrating greater efficacy than standard copper-based treatments. Developed using lysates of amoebae, this innovative solution combines reduced copper doses with biocontrol technology to enhance disease management. Regulatory approval is anticipated by the end of 2025, making the product available for use in the 2026 vintage.
Field trials conducted in the Gaillac region during an unusually wet 2024 growing season highlighted the product’s capabilities. With rainfall exceeding average levels by 147 mm, conditions were highly favorable for the spread of downy mildew, which devastated untreated grape clusters, affecting 95% and destroying 80% of them. Despite these challenges, a combination of Axpera, applied every 7 to 10 days, and a reduced copper dose of 2.38 kg/ha, achieved a 57.7% reduction in disease symptoms.
This performance outpaced that of traditional copper treatments, which reduced symptoms by only 37.5% at a higher dose of 3.4 kg/ha. The trials also revealed that Axpera was particularly effective on grape clusters, a rare achievement for biocontrol products, which often show stronger results on leaves.
While Axpera demonstrated significant potential, it is positioned as a complementary addition to existing biocontrol solutions rather than a standalone replacement. Its consistent performance under challenging conditions underscores its value in reducing reliance on conventional chemical treatments while enhancing disease management strategies.
The product will be exclusively commercialized for vineyard applications by a leading agricultural solutions provider over several years, ensuring its strategic integration into the market. By combining cutting-edge biotechnology with reduced environmental impact, Axpera aligns with the industry’s commitment to sustainability.
As approval approaches, Axpera is poised to become a valuable tool for winemakers seeking effective, environmentally conscious methods to manage vineyard diseases. Its success in trials signals a promising step toward more sustainable and resilient viticulture practices.