Manual de riego para paltos y cítricos, capítulo 2.
In its broadest sense, "citrus health management" means managing the health of citrus trees in a way which gives a net profit by integrated measures, including Integrated Pest Management (IPM), soil and water management and cultural practices. This chapter discusses IPM measures to keep disease-free seedlings free of pests and diseases once they have been planted out in the orchard.
Citrus greening is one of the most devastating diseases of citrus in Asia. Citrus greening was first identified in South Africa fifty years ago. It is now found all over the tropical and subtropical countries of Asia. In the Philippines, citrus greening is the main reason why citrus production fell by 60% between 1961 and 1970. In Vietnam, up to 90% of the citrus trees in some areas are believed to be infected with citrus greening.