English

Methods of controlling tobacco insects

Circular No. 123 · "Issued June 10, 1910." · At head of title: United States Department of Agriculture, Bureau of Entomology · Introduction. pp. 1 · Cutworms. pp. 2 · The tobacco flea-beetle. pp. 3 · Preventive measures. pp. 4 · Remedial measures. pp. 5 · The tobacco hornworms -- Distribution. pp. 6 · Life history and seasonal history. pp. 7 · Remedial measures. pp. 10 · Fall and winter plowing. pp. 11 · Combating tobacco hornworms upon growing tobacco. pp. 12 · Poisoning the tobacco moths -- Summary -- Cutworms. pp. 16 · Flea-beetles -- Tobacco hornworms. pp. 17

Entre na sua conta gratuita para ler, descarregar EPUB ou ouvir.