Protecting Citrus from Disease and Decay

Citrus fruit is one of the most important product groups in the fresh produce sector. Consumers expect high-quality oranges, mandarins, lemons and grapefruits all year round. Yet beneath the attractive peel, citrus hides a vulnerability: it is highly susceptible to a wide range of diseases caused by fungi, bacteria, and viruses. These not only affect production in the orchards but also influence product quality, shelf life, and even international trade.

Fungal Diseases – the Most Common Cause of Post-Harvest Losses

Viruses are harder to detect on fruit but can devastate citrus orchards:

• Citrus Tristeza Virus (CTV)
  One of the most serious citrus diseases worldwide. Although it does not affect the fruit directly, it can kill entire trees or drastically reduce yields. To minimize spread, EU regulations stipulate that citrus fruit may not enter with leaves and that stem length must be under 2 mm.