56 EXPEKIMENT STATION RECORD. 



verely than on other soils. The light leaved varieties are said to appear nauch 

 less susceptible to this disease than the others grown in these districts. 



A note on the treatment of blister blig'ht, A. C, Tun stall {Indian Tea 

 Assoc, Sci. Dept. Quart. Jour., 1913, No. 2, pp. 50-53).— The author reports 

 recent observations in Assam and Darjeeling leading to the conclusions that 

 ExoMsidium vexans is able to attack tea only and that the disease passes the 

 winter in an active stage, no dormant stage or special winter form being known. 

 Wind may carry spores for long distances, this fact requiring cooperation over 

 wide areas. Treatments described include the application to dormant bushes 

 of a solution composed of 2 lbs. sodium hydrate to 10 gal. water; to green 

 bushes, one consisting of 6 lbs. each of copper sulphate and quicklime to 100 

 gal. water; and in rainy seasons of 2 oz, each of common salt and lime to 

 1 gal. water. The spraying fluid, it is said, is most economically applied from 

 below. 



Root disease of tea, A. C. Tunstall {Indian Tea Assoc, /S'ci. Dept. Quart. 

 Jour., 1912, No. 1, pp. 17-22). — This is a digest of a circular by Fetch, which 

 has already been noted (E. S. R., 25, p. 47). 



A root disease of tea, A. C. Tunstall {Indian Tea Assoc, Sci. Dept. Quart. 

 Jour., 1913, No. 2, pp. 54, 55). — Fomes lucidus is reported to have been observed 

 to attack tea. Recent researches are said to have shown also that this is a 

 dangerous parasite of betel nut palm and other trees as reported by Butler 

 (E. S. R., 29, p. 445). 



Preliminary note on a disease of Basella rubra, E. Rangel {Bol. Min. Agr., 

 Indus, e Com. [Brasil], 2 {1913), No. 4, pp. 177-180, pis. 2; Lavoura; Bol. Soc 

 Nac Agr. [Brazil], 17 {1913), Nos. 7-8, pp. 136-UO, pi. 1).—A leaf disease of 

 B. ruira was ascribed to a fungus studied and named Stagonospora haselhe 

 n. sp., in association with anothe'* fungus which was named Phyllosticta 

 tascllo' n. sp. 



Nematode studies, Schwabtz {Mitt. K. Biol. Anst. Land u. Forstic, No. 

 12 {1912), pp. 26, 27, fig. 1). — The author notes the discovery in lily-of-the- 

 valley of a nematode which is described under the name Aphelenchus oderholdi 

 n. sp. A second species appearing in tap water, named A. mycogenes n. sp.. 

 is said to be closely related to A. olesistus. Tylenchus dipsaci is reported as 

 causing galls on phlox. 



Parasitism of mistletoe, N. van Poeteben {Tijdschr. Plantenziekten, 18 

 {1912), Nos. 5-6, pp. 101-113, pi. 1; But. Soc. Cent. Forest. Belg., 20 {1913), 

 No. 12, pp. 834-844)- — A. case, discussed in considerable detail, of Tiscum album 

 growing in a large cluster on an otherwise leafless graft terminating an apical 

 branch of Sorbus aucuparia, is cited as possibly throwing some light on the 

 actual or potential nutritive relations between parasite and host. 



Witches' broom on Juniper, E. Heinkichee {Natuno. Ztschr. Forst u. 

 Landw., 12 {1914), No. 1, pp. 36-39, fig. 1). — The author states that Arceutho- 

 Mtim oxyced-ri easily parasitized Juniperiis communis, producing characteristic 

 witches' broom thereon. 



A fruit rot of Hevea brasiliensis in Kamerun, L. Peters {Mitt. K. Biol. 

 Anst. Land u. Forstw., No. 12 {1912), pp. i8-22).— Reporting a fruit and seed 

 rot of H. brasiliensis, the author states that along with a Phytophthora, other 

 fungi and several bacteria are found, regarding which further studies are con- 

 Bidered desirable. 



ECONOMIC ZOOLOGY— ENTOMOLOGY. 



Zoological record, D. Sharp {Zool. Rec, 48 {1911), pp. XII+U298]; 49 

 (1912). pp. XII +[1374]). — These volumes record the zoological literature relat- 

 ing chiefly to the years 1911 and 1912, respectively. 



