The Father of Phytobacteriology is—

✅ Explanation:
-Erwin Frink Smith is widely recognized as the "Father of Phytobacteriology" for his pioneering research on bacterial diseases of plants. He made significant contributions to the isolation, identification, and characterization of numerous plant pathogenic bacteria and developed innovative techniques for their study. Smith's work laid the foundation for the field of phytobacteriology and significantly advanced our understanding of bacterial plant diseases.