Botany. 53 



Through the courtesy of the Consolidated Ginseng Company of 

 Rose Hill, N. Y., we have been able to study this disease in their 

 gardens, and will with their co-operation conduct extensive experi- 

 ments in the sterilization of the soil with formalin and steam for the 

 control of this disease and the "tip rot" and damping off of seedlings. 

 We are indebted to Dr. I. C. Curtiss of Fulton, N. Y., for extensive 

 and successful experiments in spraying for this disease. 



Numerous photographs and data in the shape of notes have been 

 collected and short articles on this disease have been contributed to 

 different ginseng publications during the year. Material is ready 

 for a short bulletin on the Leaf Blight and Soft Rot of the Roots. 

 Continued experiments in spraying and soil treatment are planned 

 for next year. 



Other diseases of Ginseng have also received considerable attention, 

 among which is to be mentioned a blight of stems and leaves due to 

 bacteria. The organism was isolated and inoculations made which 

 resulted in successful infection. 



3. Alfalfa Leaf Spot. — Spraying experiments to determine if this 

 disease could be controlled were begun quite early in the season. 

 Various mixtures were used and applied every week for several weeks 

 until the alfalfa was too tall to make spraying of any value. Exam- 

 ination of the different plots at the time of the first cutting showed 

 but little reduction of the leaf spot. Those plots treated with Bor- 

 deaux mixture seemed to show the least. The weather was very 

 rainy, the plots treated were small and the work begun so late in 

 the season that no conclusions can be drawn. It was planned to 

 spray again after the first cutting, but continuous rains directly after 

 the first cutting prevented the removal of the crops until the alfalfa 

 had grown too tall to make spraying feasible. The work for this 

 season was therefore dropped. 



4. Bean Diseases. — The Bacterial "Blight of Beans, and the Bean 

 Anthracnose were very prevalent and destructive in certain sections 

 during the season. A press bulletin on Bean Anthracnose was issued 

 and distributed to bean growers of the state. A visit to one of the 

 bean-growing sections was made and a talk on the subject of bean 

 diseases given before the local grange. Extensive experiments in 

 spraying for Anthracnose during the coming season ai-e planned. 



5. The correspondence for the past year has been very heavy. 

 This has taken up a lai-ge part of the time when not in the field. 

 The inquiries, while varied, have been largely with regard to diseases 

 of fruit and shade trees and the diseases of truck crops. These have 

 all been given prompt and careful attention. Numerous bulletins 



