A Review of the biological control attempts against insects and weeds in Canada /
McLeod, J. H.
A Review of the biological control attempts against insects and weeds in Canada / J. H. McLeod and H. C. Coppel. - Farnham Royal, Eng. : Commonwealth Agricultural Bureaux, 1962. - xi, 216 p. : ill.; 26 cm.
Includes bibliographical references and index.
Pt. 1. Biological control of pests of crops fruit trees, ornamentals, and weeds in Canada up to 1959 / Biological control of forest insects, 1910-1958 /
Insects.
Insects control.
Herbicides.
Insect pests--Control.
Insects.
Herbicides.
595.7 / MCR 1962
W1 / TE135I no.2 1962
A Review of the biological control attempts against insects and weeds in Canada / J. H. McLeod and H. C. Coppel. - Farnham Royal, Eng. : Commonwealth Agricultural Bureaux, 1962. - xi, 216 p. : ill.; 26 cm.
Includes bibliographical references and index.
Pt. 1. Biological control of pests of crops fruit trees, ornamentals, and weeds in Canada up to 1959 / Biological control of forest insects, 1910-1958 /
Insects.
Insects control.
Herbicides.
Insect pests--Control.
Insects.
Herbicides.
595.7 / MCR 1962
W1 / TE135I no.2 1962