With the drop in global orange juice supply, Brazil finds itself facing a critical challenge: containing the advance of greening, also known as HLB (Huanglongbing), which has already devastated groves in Florida and now threatens the national citrus belt. The disease, caused by the bacterium Candidatus Liberibacter asiaticus and transmitted by the citrus psyllid (Diaphorina citri), has no known cure, and its control depends on rapid and sustainable actions.