Diseases & insects of the home garden . >et b the hot ground on which they fall and few, if any, everthe plants. This aphis also feeds on clover, alfalfa, field peas, and several Fig. 31.—Potato leaves with dead spots due to late-blight. >ack Fig. 32.—Potato tuber rutted by lute blight. POTATO SCAB. — This t r o u b 1 ecauses roughened brownishs])ots or scabs on the skinof the potatoes (fig. 29). Insevere cases the whole po-tato may be covered withthese spots. The troublelives in the soil and iscarried on the scabby po-tatoes. Treatment.—The controlof this disease is entirelyj)
Diseases & insects of the home garden . >et b the hot ground on which they fall and few, if any, everthe plants. This aphis also feeds on clover, alfalfa, field peas, and several Fig. 31.—Potato leaves with dead spots due to late-blight. >ack Fig. 32.—Potato tuber rutted by lute blight. POTATO SCAB. — This t r o u b 1 ecauses roughened brownishs])ots or scabs on the skinof the potatoes (fig. 29). Insevere cases the whole po-tato may be covered withthese spots. The troublelives in the soil and iscarried on the scabby po-tatoes. Treatment.—The controlof this disease is entirelyj)reventive. Preventiov .—Do notplant scabby seed. Do 22 DEPARTMENT CIRCULAR 35, U. S. DEPARTMENT OF AGRICULTURE
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