Fiorinia externa Ferris, a scale insect of hemlock
Talerico, Robert L., 1934-
Fiorinia externa Ferris, a scale insect of hemlock by Robert L. Talerico, Charlew W. McComb and Wallace T. Garrett. - [Washington, U.S. Govt. Print. Off.] 1967. - 4 p. illus. 24 cm.
Caption title.
Bibliography: p. 4.
agr67000375
Fiorinia externa.
Fiorinia externa.
Hemlock--Diseases.
A423.9 F764 no. 107
Fiorinia externa Ferris, a scale insect of hemlock by Robert L. Talerico, Charlew W. McComb and Wallace T. Garrett. - [Washington, U.S. Govt. Print. Off.] 1967. - 4 p. illus. 24 cm.
Caption title.
Bibliography: p. 4.
agr67000375
Fiorinia externa.
Fiorinia externa.
Hemlock--Diseases.
A423.9 F764 no. 107