The thorough use of sulphur on and about the seed potatoes is also suggested as a 

 means of partial control. 



It is stated that the investigations indicate the possibility of the fungus remaining 

 in the soil for more than 6 years. 



Methods of spraying- cucumbers and melons, W. A. Orton and W. D. Gar- 

 bison (South Carolina Sta. Bui. 116, pp. 36, ph. 4, figs. 2) — This bulletin gives an 

 account of experiments carried on in cooperation between the South Carolina Station 

 and the Bureau of Plant Industry of this Department. 



In 1903 a severe epidemic of cucumber powdery mildew prevailed in the vicinity 

 of Charleston, S. C, and in the fall of that year and the spring of 1904 and of 1905 

 experiments were conducted for its control. The authors describe the experiments 

 in detail, and the practical conclusions as well as descriptions of the fungi are given, 

 which are identical with those in Farmers' Bulletin No. 231 of this Department 

 (E. S. K., 17, p. 672). 



The inspection and disinfection of cane cuttings, N. A. Cobb {Hawaiian Sugar 

 Planters' Sta., Div. Path, and Physiol. Bui. 1, 2. ed., pp. 35 + VI, pis. 8).— The pur- 

 pose of this bulletin is to call attention to the fungus diseases of cane that gain entrance 

 through the cuttings, and to offer suggestions for their prevention. The author rec- 

 ommends selection of growing cane, inspection at time of harvesting, rejection of all 

 diseased or suspected canes, care in making the cuttings, and treatment with fungi- 

 cides, particularly with Bordeaux mixture. Several plans for treating cane in large 

 quantities are described. 



Preliminary notes on root disease of sugar cane in Hawaii, L. Lbwton- 

 Braix (Hawaiian Sugar Planters' Sta., Die. Path. andPhysiol. Bui. 2, pp. 39, figs. 12).— 

 The author describes a number of diseases of sugar cane, the most important of which 

 is the root disease. This disease, which is of fungus origin, has caused the abandon- 

 ment of the cultivation of Lahaina and Rose Bamboo canes in certain localities. 



The first symptoms of the disease are observed in the appearance of the plants, 

 which seem to be suffering as from drought. The leaves stand upright, are rolled 

 together, turn yellow, and gradually become dry. The lower leaf sheaths become 

 matted together about the base of the stem, and a white fungus mycelium is found 

 among them. 



In Hawaii the root disease is also said to affect germination. The fungus (Maras- 

 m ins sacchari) is essentially a soil fungus and is able to live as a saprophyte on dead 

 organic matter in the soil, especially about the base of the cane stools. 



The treatment recommended is the planting of resistant varieties, cultivation and 

 liming the soil, destruction of diseased material, and when severe the abandonment 

 of cane cultivation for a time. Ratooning is not considered advisable where the 

 disease is prevalent. 



The third report on gumming of the sugar cane, X. A. Cobb (Hawaiian 

 Sugar Planters' Sta., Div. Path, and Physiol. Bui. 3, pp. 46, figs. 12). — In continuation 

 of the publications of the author while in Australia, notes are given on the gumming 

 of sugar cane, which is of 'bacterial origin. 



The author reviews some of the previous publications regarding this disease and 

 describes recent investigations as to its origin, spread, etc. In conclusion he states 

 that the disease, which is a very distinct one, was first discovered in Australia and is 

 due to Bacterium vascularum. While the course of the disease is somewhat slow, it 

 often destroys plants and may cause serious losses to the sugar industry. The dis- 

 ease may be recognized by the appearance of a yellowish gum or slime on the ends 

 of freshly cut stalks. This first appears at the ends of the fibers, but finally runs 

 together into large drops. 



The disease is particularly connected with the vascular bundles, but may extend 

 into the parenchymatous tissue, especially at the base of the arrow, where it causes a 



