Greening Disease Replanting Drives Demand for Tolerant Hybrid Rootstock Seed
Florida, Brazil, Mexico, and China are replanting orchards affected by huanglongbing, or greening disease, using rootstocks that tolerate infection better than sour orange or Swingle citrumelo. Newer hybrids released by public breeding programs show higher yield and fruit quality on infected trees, and growers are ordering seed and seedlings years ahead. Nurseries expand screenhouse capacity, and orchard developers sign multi-year supply agreements to secure tolerant material. Growers report that trees on tolerant rootstocks hold fruit longer and show less canopy decline, and nurseries that promise licensed seedlings within two years win orders from large orchard groups.
Market Impact: USDA replanting support exceeds $600 million








