Citrus greening (Huanglongbing/HLB) has severely reduced Florida's grapefruit output over the past two decades, shifting the US from a net exporter to a more import-dependent market for certain grapefruit products. This has elevated the commercial importance of foreign suppliers and increased scrutiny of phytosanitary protocols, since APHIS must balance market access with the risk of introducing HLB-associated pests into remaining domestic citrus-growing areas.

Yes — the US HTS schedule distinguishes between white-fleshed and red- or pink-fleshed grapefruit at the subheading level, reflecting their different market values and trade flows. Both fall under SITC 05722, but importers must identify the correct HTS subheading based on flesh color to ensure accurate duty assessment and statistical reporting.