44 EXPERIMENT STATION RECORD. 



Take-all (Ophiobolus graminis), G. L. Sutton {Agr. (laz. N. S. Wales, 22 

 {1911), No. 2, lip. 161-163). — The characteristics of this disease, its prevalence, 

 and the damage done by it, together with suggestions as to its control, are 

 given. See also a pi-evious note (E. S. R., 24, p. 551). 



The relation of crown gall to legume inoculation, K. F. Kellerman ( U. 8. 

 Dept. Agr., Bvr. Plant Indus. Circ. 76^ pp. 6, pi. 1). — ^Attention is called to the 

 presence on the roots of alfalfa, crimson clover, and alsike clover of tumors 

 somewhat resembling normal nitrogen-fixing nodules, but in i-eality galls of the 

 crown-gall organism {Bacterium tumefadens). The differences, which are here 

 described, between these tumors and nitrogen-fixing nodules are sufficiently 

 typical to be easily recognized by an experienced observer, both by their exter- 

 nal appearance and by the use of special culture media. The author advises 

 that great care should be taken in using soil or cultures for inoculating legumes 

 in regions which may eventually be used for sugar beets or for orchards. 



A foot rot of asparagus, R. Farneti {Riv. Patol. Veg., Jf {1910), No. 18, 

 pp. 273-277). — Attention is called to a serious disease of asparagus in Liguria, 

 which causes a rotting of the younger shoots at their point of attachment to the 

 rhizome, resulting finally in their death and separation from the rhizome. An 

 examination of the roots of diseased plants showed the presence of black, 

 globular peritheeia, which belong to Zopfia rUizopliila (Perisporiacae). 



The destruction of all diseased plants by burning, and the disinfection of the 

 asparagus beds with carbon bisulphid, are recommended. 



Wilt disease of cotton in Georgia and its control; cotton anthracnose, 

 A. C. Lewis {Ga. Bd. Ent. Bui. 34, 1911, pp. 31, pis. If, figs. 10).— The author 

 gives notes on the history, distribution, annual losses, symptoms, and cause of 

 cotton wilt {Neocosmospora vasinfccta) , together with a report on experiments 

 from 1905 to 1910 with different fertilizers, fungicides, and resistant varieties 

 of cotton in combating the wilt. The fertilizers and fungicides proved to be of 

 no value in controlling the disease, but by planting wilt-i*esistant varieties of 

 cotton, together with a proper crop rotation, good yields were secured and very 

 little of the cotton died from the wilt. The varieties of cotton recommended as 

 wilt-resistant are Dillon, Dixie, Modella, Grant, and an unnamed hybrid. For 

 crop rotation, corn, oats, wheat, rye, Iron cowpea, velvet bean, and peanuts are 

 suggested, as these crops are resistant to both the fungus and nematode. 



A discussion is also presented of the symptoms and cause of cotton anthrac- 

 nose, and the author gives the results of tests as to the resistance to this disease 

 of various varieties of cotton. The disease is said to be carried over in the seed, 

 and since at pres.-?nt no practical method is known of treating the seed to kill 

 the fungus spores, rotation of crops and the planting of varieties which are 

 more or less resistant to the disease, such as Sistrunk, Schley, and Modella, are 

 advised. 



Wart disease of the potato, W. Cuthbertson {Gard. Chron., 3. ser., Jf9 

 {1911), No. 1261, pp. 122, i23).— Attention is called to the fact that all varieties 

 of the Up-to-date type, which are the most resistant to the late blight {Phyto- 

 phthora infestans), are the most susceptible to the wart disease {fiynchitrium 

 cndobioticum) , while some varieties of the Abundance type which succumb 

 quickest to the late blight are resistant to the wart disease. Varieties of the 

 Langworthy type are resistant to both diseases. 



These observations are based on the results of tests with different varieties 

 of potatoes resistant to the wart disease as reported in a recent bulletin from 

 the Harper-Adams Agricultural College (E. S. R., 24, p. 449). 



The rotting of root crops during the winter of 1908-9, F. K. Ravn 

 {Tidsskr. Landbr. Planteavl, 17 {1910), No. 1, pp. 1^3-162, figs. ^).— The 



