Phoma Canker of Pigeonpeas in Puerto Rico

How to Cite

Alvarez García, L. A. (1960). Phoma Canker of Pigeonpeas in Puerto Rico. The Journal of Agriculture of the University of Puerto Rico, 44(1), 28–30.


An epidemic of phoma canker was observed in February 1954, causing considerable damage to the pigeonpea crop, a rather important one in Puerto Rico. This paper reports a study of the causal agent, a species of Phoma characterized by the formation of papillate pycnidia of variable size. The disease could be produced in healthy pigeonpea plants by inoculation or by spraying with a water suspension of conidia obtained from a pure culture. Further study is advisable.


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