Junk, 1920) PATHOLOGY 403 



Zuckerrubenbau 25: 13 !•>. 1018. A general resume* is given of literature on the troubles of 

 Bugar beets in Austrian territories in l§17. Uzel reports a Bohemian beel disease which bas 

 been spreading steadily through the growing season. The characteristics of the disease are 

 sickly-looking leaves and loss of side roots, sometimes even the main rooi falling off. Adven- 

 titious runts appear giving the rout an irregular shape. The trouble possibly is caused hy 

 incth ids of fertilization or drainage, irrational rotation of crops or use of land not suit'd to 



heel culture. Kemedv BUggOSted IS t lie use of seei| from sound heels as I li is d iseasc may he 



transmitted through the seed. A report is given of Austrian seed disinfection experiments 

 during the year. Bacterial troubles are reported. — Caroline Rumbold. 



2769. Tanner, Fred W., and Hutu S. Funk. Some observations on the use of boric acid 

 as a disinfectant. Amer. .lour, l'harm. 91: 206-210. 1919. — As a result of a short study of 

 borio acid as a disinfectant, the authors arrive at the conclusion that boric acid should not 

 be employed in cases where a disinfectant is absolutely essential. The experiments consisted 

 of adding increased amounts of a saturated solution of boric acid to tubes inoculated with 

 various types of bacteria. The silk thread method was also employed. — Anton Hogstad, Jr. 



2770. Taylor, E. P. Uniformity of rules and regulations of potato seed certification. 

 Potato Mag. 2 2 : 7, 21-23. 1 fig. 1919. 



2771. Tisdale, W. H. Report of the division of plant pathology and bacteriology. North 

 Carolina Agric. Exp. Sta. Ann. Kept. 41: 58-59. [1919.] — A brief report of work by Wolf on 

 tobacco wildfire, trembles and milksickness, intumescences on cabbage, and bacterial blight 

 of the soybean. — R. A. Jehle. 



2772. Townsend, C. O. An immune variety of sugar cane. Science 49: 470-472. May, 

 1919. — F. S. Earle noted that among about twenty varieties of cane growing at the federal 

 station at Mayaguez, Porto Rico, there was one variety, Kavangire, free from the mottling 

 disease (mosaic). Tests were made with ninety varieties of cane, the first planting being 

 made on Oct. 1, 1918. Ten weeks later all varieties showed infection with the exception of 

 Kavangire, and this variety was still uninfected at the time of writing (March, 1919). Earle 

 raises the question as to whether or not Kavangire can be successfully used for general plant- 

 ing in Porto Rico. If it can, and retains its immune characteristics, the question of combat- 

 ing the mottling disease is solved. — A. H. Chivers. 



2773. Turconi, Malusio, and Luigi Maffei. Note micologiche e fitopatologiche. I. — 

 Un nuovo genere di Ceratostomataceae. II. — Due nuovi micromiceti parassiti della Sophora 

 japonica Linn. [Mycological and pathological notes.] Atti 1st. Bot. Univ. Pavia II, 15: 143- 

 149. PI. 1. 1918. — To the family Ceratostomataceae is added a new genus, Chaetoceratostoma 

 represented by C. hispidum found on dead leaves of Castanea vesca in Liguria. — A new species 

 Macrosporium sophorae which causes a spotting of leaves of Sophora japonica is described. 

 Also Gibberella briosiana which causes a white canker on the stems of Sophora japonica. Suc- 

 cessful inoculations were made with spores and affected tissue in the case of the last-named 

 fungus. — F. M. Blodgett. 



2774. Uzel, H. Uber Krankheiten und Schadiger der Samenriibe in Bohmen in den Jahren 

 1916 und 1917. [The diseases and enemies of seed beets in Bohemia in 1916 and 1917.] Blatt. 

 Zuchemibenbau 25 : 187-192. 1918.— In 1916 seed beets were infested with black aphis (schwar- 

 zen Blattlaus). There was much complaint about the birds: lark, titmous, siskin and es- 

 pecially sparrow, stripping the seed stalks of seed when the}' were half ripe. Damping-off 

 fungi affected the roots, and leaf troubles were caused by Sporodesmium putrefaciens, Clado- 

 sporium herbarum and bacteria. — In 1917 there was an outbreak of black aphis on both field 

 and seed beets, and some green aphis; field mice caused much loss. A warning is given to 

 choose for seed only those seed beets which show resistance to nematode attacks. Bacteria 

 caused much rotting of the roots in the earth. Very little Cerospora was seen due to the dry 

 weather. — Caroline Rumbold. 



