Publisher's Synopsis
Excerpt from The Culture and Diseases of the Sweet Pea
Man beings. We shall here endeavor to show that although bad weather, over feeding, etc., may be important factors, they are not the fundamental reasons for failure. We shall study the specific causes that lead to the diseases of the sweet pea; the definite parasitic forms of life such as insects, fungi, and bacteria that live upon this plant and bring about its de struction. The nature of the attacking insects is still incompletely known and there is urgent need of further investiga tion of them. Of the fungi, nine produce serious diseases in either roots, stems, foli age, or blossoms of sweet peas. Only one bacterial trouble, however, is so far known to affect sweet peas, and that is the dreaded Streak. To these troubles may be added eel worm, red spider, and mites, all of which add considerably to the losses.
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