84 THE MONTHLY BULLETIN. 



Experiment Station, no definite remedy has been demonstrated in 

 California, but self-boiled lime-snlphiir, just as the fruit is setting and 

 again after the rains are over, is recommended for trial. 



Anthracnose of Beans. 



Bean anthracnose is a disease of fungous nature which attacks the 

 pods, stems and leaves. The scabby spots are most conspicuous on the 

 pods. These appear as purplish discolorations which later become dark 

 and sunken. The spores are of a pinkish color and if abundant give 

 the spots that tint. In the control of this disease clean seed, the use of 

 Bordeaux mixture, 5/5/50 formula sprayed on the plants is recom- 

 mended l\y Duggar. Burning infested material and rotation of crops 

 are important. 



Winter Blight of the Tomato. 



Winter blight occurs on the winter shipping crop or in early spring 

 plants. The, leaves and stems are blackened and killed and spots appear 

 on the fruit causing it to soon decay. Bordeaux mixture 5/5/50 

 formula, sprayed on the plants following a rain holds the disease in 

 check. The late blight of the potato is also caused by this fungus. 



Apple and Pear Scab. 



A fungus produces the scabby patches on the fruit and leaves. 

 Bordeaux mixture 5/5/50 formula is used just as the buds are opening ; 

 a second or third spraying is sometimes applied at later intervals. Con- 

 ditions determine the number of applications to be made. 



Peach-leaf Curl. 



Entire defoliation of the peach may result from a heavy infestation 

 of the leaf curl fungus. The young branches and fruit, together with 

 the flowers, are also subject to attack. Gummy exudations may appear 

 on the enlarged twigs which may become distorted in cases of serious 

 infestations. This disease caused a loss of about three million dollars 

 in the United States before satisfactory preventative measures were 

 used. Apply lime-sulphur or Bordeaux mixture just before the buds 

 open in the spring. Subsequent sprayings are of little importance. A 

 good thorough application is necessary in order for the fungicide to 

 become effective. 



