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Chestnut blight in the southern Appalachians
G. F. Gravatt · U.S. Dept. of Agriculture
11 sayfa · 1926
Chestnut blight / Chestnut / Diseases and pests
Gipsy-moth larvae as agents in dissemination of the white-pine blister rust
G. F. Gravatt · G.P.O.
462 sayfa · 1918
Gypsy moth / White pine / Diseases and pests / Insect-plant relationships
Chestnut blight
G. F. Gravatt, Lake S. Gill · U.S. Dept. of Agriculture
18 sayfa · 1930
Chestnut blight / Chestnut / Diseases and pests
Treatment of Ornamental White Pines Infected with Blister Rust; Volume No. 177
J. F. (James Francis) 1888- Martin, G. F. (George Flippo) 1891- Gravatt, G. B. (Gilbert Bradley) 1891- Posey · Creative Media Partners, LLC
Sayfa sayısı yok · 2023
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