Control (Penicillium rot)

Control or prevention of Penicillium rot is mainly dependent on cultural methods based on good hygiene, particularly of bins, and of good supervision at harvest to minimise damage to fruit.

• Pre-harvest fungicide treatment is generally ineffective against Penicillium as rot incidence is related to fruit damage.
• However, both Switch (cyprodinil + fludioxonil) and Bellis (pyraclostrobin + boscalid) are active against P. expansum and may give some control.
• Most isolates of P. expansum are resistant to benzimidazole fungicides.
• Treatment of water with chlorine both may give some control of Penicillium.