. Fruits, vegetables and flowers, a non-technical manual for their culture. is inferior in quality, frecjuently insipid and watery. The leaves arefrecjuently lighter than normal loaves or and often rollcxland drooping,eo DISEASES OF CROPS 207 Treatment.—Same as for yellows. Peach Rosette.—The cause of this disease of the peach in the Southernstates is also unknown. It is very similar to yellows, but the leaves tend tocluster, giving the general appearance of green roses. Treatment.—Same as for yellows. Spray Table for Peach. Time. Materul. Purpose. 1. Same as first treatment f
. Fruits, vegetables and flowers, a non-technical manual for their culture. is inferior in quality, frecjuently insipid and watery. The leaves arefrecjuently lighter than normal loaves or and often rollcxland drooping,eo DISEASES OF CROPS 207 Treatment.—Same as for yellows. Peach Rosette.—The cause of this disease of the peach in the Southernstates is also unknown. It is very similar to yellows, but the leaves tend tocluster, giving the general appearance of green roses. Treatment.—Same as for yellows. Spray Table for Peach. Time. Materul. Purpose. 1. Same as first treatment for apple. (See page 943.) 2. Just as the husks fall from the small fruit. Self-boiled limengulphur. For brown rot, scab andother diseases. 3. Three weeks after 2. Same as 2. Same as 2. 4. Three weeks after 3, for late varieties. Same as 2. Same as 2. 5. Same as 2 for very late varieties. Note.—Arsenical poisons may be added to No. 2 for curculio. Tobacco extracts and soap can also be added for suck-ing insects. PLUM Black Knot {Plowrightia morhosa [Schw.], Sacc).. Black Ivnot on the Cherry. ^Photograph by Prof. J. P. Helyar. —This very commonand well-known dis-ease causes swollengrowths on thebranches which areat first olivaceous incolor, but finally be-come deep black andvery hard and brit-tle. It will spreadover the greater partof a tree, interferewith its growth andfinally cause itsdeath, Treatrnent.—The diseased partsshould be cut outand burned and thetrees should besprayed with lime-sulphur in the springbefore the openingof the buds. (Seetable for plum.)Mildew.—See Cherry. Yellows.—See Leaf Spot.—^See CherryPeach. Brown Rot.—See Peach. Crown Gall.—See Apple, Courtesy of New Jersey Agricultural Experiment Station, 208 SUCCESSFUL FARMING Spkay Table for Plcm. Time. Matuual. PVKPOSK. 1. Soiiif uH for upplc and peach. 2. ImmitliaUly aft4T the ixt-Hk* fall. S<-lf-lioilc<(t Ump-Kulphur. For lirown rot. 3. Whrn a aUiut the Niir of Krocn pcaa. Sam
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