SSSRN Electronic Journal1/1/2026Reference-Validated Raman Spectroscopy Coupled with Optimized Machine Learning for Early Detection of Citrus HuanglongbingW Yi·Shanjun Li·Pei Xiong·Zhimin Gao·Xin Hu·Jixing Zhang·Yuexiang ChuRead at SSRN Electronic JournalTagsPhytoplasmas and Hemiptera pathogensPlant Science