ScienceJohn Michels (Journalist) 1939 |
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Page 63
... disease which has not previously been described . During the present growing season the disease has again appeared and is even more destructive than during 1938 . The end result of this disease is a severe chlorosis followed by wilt and ...
... disease which has not previously been described . During the present growing season the disease has again appeared and is even more destructive than during 1938 . The end result of this disease is a severe chlorosis followed by wilt and ...
Page 273
... disease in every case of the several hundred plants examined . Cage experiments at the Greeley Potato Experiment Station begun on July 31 with plants known to be free of psyllids and disease , have demonstrated that the Say's pentatomid ...
... disease in every case of the several hundred plants examined . Cage experiments at the Greeley Potato Experiment Station begun on July 31 with plants known to be free of psyllids and disease , have demonstrated that the Say's pentatomid ...
Page 428
... disease which takes a sweeping toll of lives each year from the productive ages of our population ; a disease which knows no state or county boundaries ; a disease which is so costly in its diagnosis and treatment that but few of its ...
... disease which takes a sweeping toll of lives each year from the productive ages of our population ; a disease which knows no state or county boundaries ; a disease which is so costly in its diagnosis and treatment that but few of its ...
Contents
40 | 4 |
Fishes Viviparous Cyprinodont C L TURNER | 42 |
ADAMS R W A Noyes Laboratory of Chemistry_71 | 65 |
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