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r l nougaret
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Cilt sonuçları
The pear leaf-worm
R. L. Nougaret · U.S. Dept. of Agriculture
24 sayfa · 1916
Pear / Diseases and pests / Pear leaf-worm / Pears
A study of phylloxera infestation in California as related to types of soils
R. L. Nougaret · U.S. Dept. of Agriculture
39 sayfa · 1928
Phylloxera / Viticulture / Grapes / Diseases and pests
The California grape industry, 1919
R. L. Nougaret · California Dept. of Agriculture
20 sayfa · 1920
Viticulture / Statistics / Grape industry