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 cactorum). 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-uvce). A powdery mil- 

 dew attacking the fruit and young growth of English varieties of 

 gooseberpy. 



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

 potassium sulfid, 1 ounce to 2 gallons of water. 

 RUST (Mcidium grossularice) . 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 



