New solutions for removing aphids from fresh-cut leafy greens

The gradual withdrawal of crop protection products used to control aphids is forcing the horticultural sector to seek new alternatives to maintain the quality and safety of leafy vegetables. In response, Sormac, in collaboration with Vertify, is developing several mechanical solutions and washing techniques capable of reducing aphid presence without relying on chemical products.

The trials are being carried out at Sormac’s laboratory in Venlo, where researchers are studying both aphid behavior and their resistance during different processing stages. The aim is to develop effective systems capable of removing these insects without compromising product quality.

The ban on certain aphid control products in the European Union, due to their negative impact on beneficial insects and bees, has accelerated the need for more sustainable alternative methods.

Washing, agitation and filtration improve aphid removal

Among the solutions being studied are flotation washing systems with turbulence, capable of removing up to 90% of aphids through a combination of water flow, air injection and gentle mechanical movement.

Researchers are also evaluating how agitation, targeted spraying and additional washing stages can further improve removal efficiency. The study also highlights the importance of water filtration systems, which are essential for removing aphids, organic matter and preventing cross-contamination.

To objectively evaluate the results, Sormac has developed a standardized counting method that quantifies aphid presence per 100 grams of product, allowing reliable comparisons between different techniques and processing systems.

According to the company, these investigations are part of a broader strategy aimed at developing sustainable solutions capable of maintaining clean and safe products without depending on chemical pesticides.

Source: Sormac