548 EXPERIMENT STATION EECORD. [Vol.38 



(Fomes austraUs), chilli disease {Vennicularia capsici), a leaf disease of 

 turmeric (T. curcuma), koleroga and a leaf disease of coffee, brown blight 

 (Colletotrichum cameUkv) of tea, koleroga, (probably Phytophthora arecce) of 

 the areca palm, spike disease of the sandalwood tree, a Fusarium disease of the 

 potato, mango mildew, a Nectria on fruit trees, smuts of jowar, grape mildew, 

 loose smut of wheat, poppy blight (Rhizoctonia and Peronospora), and gray 

 rim blight of tea. 



Diseases and injuries to cultivated plants in the Dutch East Indies in 

 1916, C. J. J. VAN Hall (Dept. Landb., Ntjv. en Handel IDutch East I^idies], 

 Meded. Lab. Plantenzielcten, No. 29 (1917), pp. 37). — This is a general review, 

 giving under the different economic plants condensed accounts of reports re- 

 ceived from various centers on diseases observed, including injuries caused by 

 some animal pests. 



The rusts occurring on the g'enus Fritillaria, C. C. Rees {Amcr. Jour. Bot., 

 4 (1917), No. 6, pp. 368-373, figs. 3).— A key is given of Vromyces wcidiiformis, 

 U. miurw, U. fritillaricp, and U, holuxiyi with descriptions of all but the last 

 named. 



Bacterial blight of barley, L. R. Jones, A. G. Johnson, and C. S. Reddy 

 (U. S. Dept. Agr., Jour. Agr. Research, 11 (1917), No. 12, pp. 625-6U- P^s. //, 

 figs. 2). — In a contribution from the AVisconsin Experiment Station, a detailed 

 account is given of a study of bacterial blight of barley, a preliminary note of 

 which has been given (E. S. R., 35, p. 845). 



This disease, which is said to be widely spread and capable of producing 

 serious loss, somewhat resembles other bacterial diseases of cereals and allied 

 plants, but it is considered distinct from these, being caused by a hitherto un- 

 described organism. The disease is characterized by the appearance on the 

 leaves of small, water-soaked areas which enlarge to yellowish or brownish, 

 somewhat translucent blotches or irregular stripes. Similar lesions may appear 

 later on the glumes, but the chief injury is to the foliage. While there is con- 

 siderable difference in varietal susceptibility to this disease, all of the main 

 groups of barley are more or less subject to its attack. 



Culture and inoculation experiments have been made with the organism which 

 have proved it to be the cause of the disease. A technical description is given of 

 the organism, which has been named Bacterium translucens n. sp. Tlie inocula- 

 tion experiments have shown that the disease may be readily induced on barley 

 by spraying with water suspensions of the organism, but negative results were 

 obtained from inoculations on oats, rye, wheat, spelt, emmer, einkorn, and 

 timothy. The bacteria have been found capable of overwintering in infected 

 leaves, but diseased kernels are considered the chief means of dissemination 

 and source of spring infection. 



No control measures have been worked out, but the authors consider avoid- 

 ance of infected seed and seed disinfection as the most promising means of con- 

 trol. 



Stinking smut and loose smut in wheat and barley (Meded. Phytopath. 

 Dienst Wagcningen; No. 4 (1917), pp. 2Jf, pis. 5). — A brief account is given of 

 the distribution, symptoms, progress, and effects of some grain smuts, including 

 Tilletia triiici, Ustilago tecta hordei, U. tritici, U. nuda hordei, U. avence, and 

 Urocystis occulta, with control measures in some detail, including costs of a 

 treatment employed in a cooperative plan. 



Stinking smut is best controlled by steeping the seed in a copper sulphate or 

 formalin solution, loose smut by immersion of the seed grain for 10 minutes in 

 water heated, in case of barley, to 51° C. (123.8° F.), of wheat to 53°, after 

 which it should be spread to dry before sowing. 



