. Fig. 38.—Roots of tomato plant affected by root-knot nematode. (From Cir. 280.) of these have as yet been commercially perfected but progress is being made. Verticillium Wilt, Verticilliosis.''—Leaves of affected plants turn yellow, then brown, and finally die and fall off, leaving the stalks bare, -'For further information sec: Eudolph, B. A. Verticillium hadromycosis. Hil- gardia vol. 5, no. 9, p. 197-361. 1931.


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Keywords: ., bookcentury1900, booksubjectagriculturalpests, booksubjectplantd