orin a hills

Orin A. Hills · U.S. Dept. of Agriculture

Sayfa sayısı yok · 1959

Melons / Agricultural pests / Control / Pesticides / Application

Orin A. Hills · Agricultural Research Service, U.S. Dept. of Agriculture

14 sayfa · 1968

Moths

Orin A. Hills · Bureau of Entomology and Plant Quarantine, Agricultural Research Administration, U.S. Dept. of Agriculture

Sayfa sayısı yok · 1952

Control / Melons / Toxicology / Insecticides / Insects as carriers of plant disease

Orin A. Hills · Agricultural Research Service, U.S. Dept. of Agriculture

29 sayfa · 1963

Sugar beet / Diseases and pests

Orin A. Hills · Yayınevi bilinmiyor

77 sayfa · 1929

Strawberries / Diseases and pests