Mealybugs are sap-feeding insects covered in a distinctive white, waxy coating that often appears as cotton-like clusters on plants. They typically gather around leaf joints, stems and growing points, where they feed on plant sap. Infestations can weaken plants, causing yellowing, stunted growth and sticky honeydew deposits, which may lead to the development of sooty mould.

• Inspect leaf joints, stems and growing points, where mealybugs often cluster
• Look for white, cotton-like wax deposits on plant surfaces
• Check for sticky honeydew or black sooty mould, which can indicate feeding activity
• Regularly inspect plants, particularly in protected growing environments where populations can build quickly

Early detection is important, as mealybugs can spread gradually and become difficult to control once established.

Mealybugs can be managed using specialist predatory insects and parasitic wasps that target different stages of the pest lifecycle. Introducing biological controls early and maintaining regular monitoring helps reduce populations and protect crop quality.