DEPARTMENT OF AGRICULTURE.

BOTANICAL DIVISION.

BULLETIN NO. 7.

SECTION OF VEGETABLE PATHOLOGY.

BLACK ROT

(LESTADIA BIDWELLII).

BY

F. LAMSON SCRIBNER,

CHIEF OF THE SECTION OF VEGETABLE PATHOLOGY,

PROFESSOR OF VITICULTURE IN THE NATIONAL SCHOOL OF
AGRICULTURE AT MONTPELLIER, FRANCE.

DEPARTMENT OF AGRICULTURE.

BOTANICAL DIVISION.

BULLETIN NO. 7.

SECTION OF VEGETABLE PATHOLOGY.

BLACK ROT

(LÆSTADIA BIDWELLII).

BY

F. LAMSON SCRIBNER,

CHIEF OF THE SECTION OF VEGETABLE PATHOLOGY,

Gray Herbarium

harvard University

AND

PIERRE VIALA,

PROFESSOR OF VITICULTURE IN THE NATIONAL SCHOOL OF
AGRICULTURE at montPELLIER, FRANCE.

HARVARD UNIVERSITY HERBARIUM.

THE GIFT OF

WASHINGTON:

GOVERNMENT PRINTING OFFICE.

1888.