500 EXPERLMENT STATION RECORD. 



Report of the interdepartmental commission on black rot at the Bordeaux 

 Congress, F. Yassillieke {Prog. Agr. et Fit., 26 (1S96), Xo. 50, pp. 655-667) .—The 

 report shows the efficiency of Bordeaux mixture in controlling black rot if properly 

 applied. 



Results obtained by the Rassiguier treatment of vine chlorosis, J. ^I. Guil- 

 LON (I'rog. Agr. et Tit., 26 {1S96), Xo. 4S, jyp. 006-608). — The author reports ou his 

 inspection of numerous viueyards Avhere this treatment had been successfully 

 employed against chlorosis. 



Winter treatment of sooty mold of grape, Degkully {Prog. A'gr. et T'it., 26 

 {1896), Xo. 48, ^yp. .55'7-<559). — Wiuter treatment is said to be efficien»t as a prevent- 

 ive treatment. 



Mildew on roses, .1. N. May {Amer. Florist, 12 {1890), Xo. 448, p. .517).— Sulphur 

 mixed with liuseed oil and painted on flow pipes, using only enough to give a per- 

 ceptible odor of the sulphur in the house, is recommended. 



Ou the injury to -woodwork by Merulius lacrymans, P. Dumee {Bui. Soc. Mycol. 

 France, 12 {1890), ^o. 4, pp. 159-161). 



Destruction of Heterodera schachtii, Willoi {Compi. Rend., 123 {1896), Xo. 23, 

 pp. low, 1020). 



On the prevention of beet nematodes, 1)()KINg {l)er Landwirt., 32 {1896), Xo 59, 

 p. 349). 



Treatment for potato diseases, S. B. Green {Minnesota Sta. Rpt. 1895, pp. 307-312, 

 figs. ^).— Reprinted from Bulletin 45 of the station (E. S. R., 8, p. 239), 



Experiments in spraying, F. D. Chestei; {Delaware Sta. Bpt. 1805, pp. 121-123). — 

 A brief report is giveu of experiments conducted in 1894 for the prevention of apple 

 scab and peach blight aud rot. Owing to unusual conditions resulting ia the almost 

 complete failure of the fruit crops the work was di8coi>tinued before the end of the 

 season. 



Spraying apparatus, S. B. Greex {Minnesota Sta. Rpt. 1895, pp. 326-328, figs. 2). — 

 Reprinted from Bulletin 45 of the station (E. S. R., 8, p. 240). 



ENTOMOLOGY. 



The chinch bug, F. M. Webster {Ohio ma. Bui. 69, pp. 59-80, 

 pis. 3). — The author has compiled and reviewed some of the more 

 important literature relating to the life history and distribution of the 

 chinch bug {BUssus lencopterus), and he gives the results of his inves- 

 tigations on its suppression. 



The use of fungus jiarasites depends on meteorological conditions 

 which are not always present, a serious drought greatly interfering with 

 the efficiency of the method. It is preventive rather than remedial, 

 and so far as known can not be depended upon when a serious out- 

 break is imminent. 



Where the chinch bug has appeared, its further migration may be 

 jnevented by the use of kerosene emulsion. Ditching in front of their 

 advance, plowing, harrowing, and rolling the ground will destroy many 

 of the insects. Old grass leaves and rubbish in winter should be 

 burned in order to destroy the hibernating adults. 



The San Jos^ scale, L. O. Howard and C. L. Marlatt ( U. S. 

 Bept. Aijr., Bivision of EntomoJogij Bui. 3, n. ser., pp. 80, pis. 2, figs. 8). — 

 This bulletin records the history of Aspkliotns perniciosus, its present 

 status, its life history and habits, its parasites and other natural enemies, 



