DISEASES OF PLANTS. 261 



of Tylenchus clevmiatrix upon phlox plants may be rocoo'nizod by the 

 thicker and shorter stems and irregularly curled leaves of the infested 

 plants. By the shortening of the internodes the leaves are brought 

 close together and produce a characteristic deformity. 



In combating this worm it is of considera1>le importance to cut off 

 and l)urn all infested parts of the plant above ground, and deep plowing 

 of the soil is also recommended. 



The same species of phlox was observed in Brussels and other places 

 to be attacked by a fungus disease which was caused by Septrma jMogis. 

 The stems of infested plants remained short, and the leaf petioles were 

 either thickened and shorter than usual or totally undeveloped. In 

 general, the appearance of plants infested with this fungus disease was 

 somewhat similar to that of plants which were attacked by the nematode 

 worm, but the presence of yellowish spots in the case of the fungus 

 disease served to distinguish the 2 diseases. The author recommends 

 that infested plants be cut and l>urned. 



A second partial list of tlie parasitic fungi of Vermont, L. R. Jones and 

 W. A. Okton ( Vermont Sla. Rpt. 1899, pp. 164-182). — In continuation of the previous 

 list noted in E. S. R., 11, p. 356, the authors give corrections of the first Hst, addi- 

 tional hosts for species there reported, and additional species not listed, together 

 with the host plants bearing the fungi. 



Plant diseases in Denmark during 1898, E. Rostrup {Tidsskr. Landhr. 

 Phndeavl, 6 {1900), pp. 38-56). 



Cereal rusts with special reference to wheat rusts, G. Linhart {Kiserlet. 

 Kozlem., 3 {1900), No. 2, ppi. 140-163, pi. 1, figs. 13). 



Potato scab {Bui. Bot. Dept. Jamaica, n. ser., 7 {1900), No. 6, pp. 87-93). — Notes 

 the occurrence of this disease in Jamaica and quotes extensively from bulletins of the 

 Rhode Island Station (E. S. R., 5, p. 590; 7, p. 782; 8, p. 798). 



Diseases of beets and beet seed, G. Linhart {Kiserlet. Kozlem,., 3 {1900), No. 3, 

 pp. 177-204). 



Diseases of sugar cane {Rev. Agr. Reunion, 6 {1900), No. 1, jyp. 6-11). — Descrip- 

 tions are given of a number of diseases of cane due to various causes such as Trico- 

 spthccria sacchari. Bacillus vascularum, Ustilago sacchari, Cercospora vaginse, Dioranotropis 

 rastdtrix, Collectotrichum pdraium, etc. 



A stem disease of wheat, B. Frank {Deut. Landw. Presse, 27 {1900), N'o. 53, p. 

 675, pi. 1) . — Descriptive notes are given on Ophioholus lierpotrichus, a fungus that has 

 been of serious injury to wheat in a number of German provinces. 



Asparagus rust, J. Stapp {Amer. Gard., 21 {1900), No. 295, p. .550). — Notes the 

 occurrence of asparagus rust in Illinois. 



Notes on a cantaloupe disease, C. S. Crandall ( CotoracZo Sta. Rpt. 1899, p. 36). — 

 A brief note is given on a cantaloupe disease at Eockyford, where it is said to have 

 done much damage in the season of 1899. A grower is reported to have sprayed 

 small areas with Bordeaux mixture with excellent results. 



Cucumber troubles, B. T. Galloway {Amer. Florist, 15 {1900), No. 627, p. 1382). — 

 Gives an account of nematodes in cucumber roots and recommends steam steriliza- 

 tion of the soil in the house where the plants were growti as a means of relief. 



A disease of cucumber plants, W. G. Smith {Gard. Chron., 3. ser., 27 {1900), 

 No. 697, p. 274)- — Describes the damping off of cucumbers which is due to Pythium 

 debaryanum. This disease was particularly abundant in greenhouses during the past 

 season. The author thinks its unusual occurrence was due to the cold spring, which 



