[5] He earned his PhD in 1964 from University of California, Berkeley[5] on the then-named Metarhizium anisopliae (now M. robertsii, see § Patronymic taxa below) and its application as a biological control of Lepidoptera.
[1][2] In 1965, Roberts was hired as an Assistant Rank Insect Pathologist by the Boyce Thompson Plant Research Institute.
[9] Roberts was a frequent collaborator of Raymond J. St. Leger, who was also chosen to give the Society for Invertebrate Pathology's Founders' Lecture in his honor in 2009.
[3] 1978 — US National Science Foundation – US/India Exchange Scientist[5] 1985 — Fulbright Senior Research Scholarship to the University of Sydney, Australia[10][11][5][9] 1986–1988 — The Society for Invertebrate Pathology – Vice President[5] 1988–1990 — The Society for Invertebrate Pathology – President[5][11] 1989 — ESA-EB – L.O.
Howard Distinguished Achievement Award[13][5][11][14] 1996 — Boyce Thompson Institute – made Roy A.