Yazar

h a gossard

11 cilt bulundu.

Cilt sonuçları

Some Ohio birds

H. A. Gossard · Ohio Agricultural Experiment Station

78 sayfa · 1912

Birds

Diseases and pestsThe clover leaf tyerH. A. Gossard

The clover leaf tyer

H. A. Gossard · Ohio Agricultural Experiment Station

443 sayfa · 1916

Clover-worm / Clover / Diseases and pests

CiltThe role of insects as carriers of fire blightH. A. Gossard

The role of insects as carriers of fire blight

H. A. Gossard · Yayınevi bilinmiyor

Sayfa sayısı yok · 1916

Kategori yok

Grape berry mothThe grapeberry wormH. A. Gossard

The grapeberry worm

H. A. Gossard · Ohio Agricultural Experiment Station

16 sayfa · 1906

Diseases and pests / Grapes / Grape berry moth

Periodical cicadaDistribution of the Ohio broods of periodical cicada with reference to soilH. A. Gossard

Distribution of the Ohio broods of periodical cicada with reference to soil

H. A. Gossard · Ohio Agricultural Experiment Station

577 sayfa · 1917

Periodical cicada

Diseases and pestsA yearly program in entomological practice for the orchardH. A. Gossard

A yearly program in entomological practice for the orchard

H. A. Gossard · Ohio Agricultural Experiment Station

Sayfa sayısı yok · 1906

Control / Fruit / Diseases and pests

Diseases and pestsThe spring canker wormH. A. Gossard

The spring canker worm

H. A. Gossard · Ohio Agricultural Experiment Station

Sayfa sayısı yok · 1907

Fruit / Canker-worms / Diseases and pests

ControlWhite flyH. A. Gossard

White fly

H. A. Gossard · Florida Agricultural Experiment Station

666 sayfa · 1903

Citrus whitefly / Control

Spraying and dusting in agricultureSpray calendar with seed and soil treatment methodsW. J. Green, A. D. Selby, H. A. Gossard

Spray calendar with seed and soil treatment methods

W. J. Green, A. D. Selby, H. A. Gossard · Ohio Agricultural Experiment Station

94 sayfa · 1908

Spraying and dusting in agriculture

Spraying and dusting in agricultureOrchard spraying suggestions for 1911W. J. Green, A. D. Selby, H. A. Gossard

Orchard spraying suggestions for 1911

W. J. Green, A. D. Selby, H. A. Gossard · Ohio Agricultural Experiment Station

Sayfa sayısı yok · 1911

Fruit / Diseases and pests / Control / Spraying and dusting in agriculture

Spraying and dusting in agricultureSpray calendar with seed, soil and disinfection treatment methodsW. J. Green, A. D. Selby, H. A. Gossard

Spray calendar with seed, soil and disinfection treatment methods

W. J. Green, A. D. Selby, H. A. Gossard · Ohio Agricultural Experiment Station

516 sayfa · 1917

Spraying and dusting in agriculture