Insect pests of farm, garden, and orchard /
Davidson, Ralph H. (Ralph Howard), 1908-
Insect pests of farm, garden, and orchard / Ralph H. Davidson, William F. Lyon. - 7th ed. - New York : Wiley, 1979. - 596 p. : ill., port., 23 cm.
Fourth-6th ed. by L. M. Peairs and R. H. Davidson.
Includes bibliographical references and index.
0471035386
Insects, Injurious and beneficial.
Insects, Injurious and beneficial--North America.
Insect control.
Insect pests of farm, garden, and orchard / Ralph H. Davidson, William F. Lyon. - 7th ed. - New York : Wiley, 1979. - 596 p. : ill., port., 23 cm.
Fourth-6th ed. by L. M. Peairs and R. H. Davidson.
Includes bibliographical references and index.
0471035386
Insects, Injurious and beneficial.
Insects, Injurious and beneficial--North America.
Insect control.