Susceptibility to dust and spray mixtures of the pear psylla (Psylla pyricola Förster)
By: F.Z. Hartzell
Series: Bulletin / New York State Agricultural Experiment Station -- no. 527; Bulletin (New York State Agricultural Experiment Station) -- no. 527
Publisher: New York State Agricultural Experiment Station
Published: 1925
Place of publication: Geneva, N.Y
Language: eng
Number of pages: 123
Subjects: Psylla; Control; Pears; Diseases and pests
Notes: Cover title.

Bibliography: p. 123.