GINSENG — GRAPE 271 



10 gallons of water. As the plants are breaking through the soil, 

 spray with bordeaux, 3-3-50. Spray repeatedly while the plants 

 are coming through the ground, making a special effort to cover 

 the stems. Keep all growth covered with spray throughout 

 the summer. Spray the seed heads thoroughly just after the blos- 

 soms fall, and again when they are two-thirds grown. Destroy 

 all diseased tops. 

 Fiber Rot (Thielavia basicola). — Commonly called rust or rusty 

 root, from the characteristic appearance. The plants eventually 

 wilt and die. 



Control. — Treat the soil with acid phosphate at the rate of 

 1000 pounds to the acre. Dip the roots in bordeaux mixture, 

 3-3-50, before planting. 

 Mildew (Phytophthora cadorum). — Attacks tops shortly after 

 they come up. 



Control. — Thorough spraying early, as for blight, will control 

 this disease. 

 Wilt {Acrostalagmus sp.). — A sudden wilting of the whole plant, 

 caused by the action of the fungus in the sap tubes of the 

 root. 



Control. — Remove the wilted plants as soon as discovered in 

 order to prevent further spread. 

 Root-rot. — Caused by various soil organisms. Favored by wet, 

 soggy soil. 



Control. — Underdrain the soil thoroughly. 

 Golden-seal. — Consult treatments under Ginseng. 

 Gooseberry. — Mildew {Sphaerotheca mors-uvcc). — A powdery mil- 

 dew attacking the fruit and young growth of English varieties of 

 gooseberry. 



Control. — As soon as the leaves begin to unfold, spray with 

 potassium sulfid, 1 ounce to 2 gallons of water. 

 Rust {Mcidium ^rosswZan^). — Orange-colored rust pustules on 

 the fruit and under side of the leaves. 



Control. — Early spraying as for Mildew. Keep down sedges 



and grasses. 



Grape. Anthracnose (Sphaceloma ampelinum) . — Occurs on the 



fruit as a definite dark brown spot with a lighter auriole ; on 



canes as deep pits with an elevated red margin, and on veins of 



