Study of the oyster-shell scale, lepidosaphes ulmi(L.), and one of its parasites
Griswold, G.H.
Study of the oyster-shell scale, lepidosaphes ulmi(L.), and one of its parasites - Ithaca 1925 - 1-67 p. - Cornell Agricultural Experime .
Study of the oyster-shell scale, lepidosaphes ulmi(L.), and one of its parasites - Ithaca 1925 - 1-67 p. - Cornell Agricultural Experime .