A review of the biological control attempts against insects and weeds in Canada.
Series: Technical communications;no.2
Publisher: Commonwealth Agricultural Bureaux
Published: 1962
Language: eng
Number of pages: 216
Notes: Part 1, Biological control of pests of crops, fruit trees, ornamentals, and weeds in Canada up to 1959, by J.H.McLeod.- Part 2, Biological control of forest insects, 1910-1958 by B.M.McGugan and H.C.Coppel.