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Webster 1913 Edition

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Noun.

[F.]

An epidemic disease of the silkworm, characterized by the presence of minute vibratory corpuscles in the blood.

See also: pebrine

pébrine ‎(uncountable)

A parasitic disease affecting silkworms.
- 2007, Graham Robb, The Discovery of France, Picador 2008, p. 267:
  In 1852, a disease called pébrine began to spread among the silkworms.

From Occitan pebrino.

pébrine f ‎(plural pébrines)