1154 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY 



It is better to use liver of sulphur than Bordeaux mixture for Goose- 

 berries. 



(8) Vegetable diseases. Early blight of Potato (Alternaria solani, 

 E. & M.) ; Potato disease (Phytophthora infestans, De By.) ; 

 Cucumber mildew (Plasmopora ctibensis, M. B. & C.) ; Celery- 

 leaf blight (Cercospora apii, Fries) ; Celery-leaf spot (Septoria 

 petroselina, var. Apii, Br. & Car.). 



It is not claimed by the author that Bordeaux mixture is equally 

 efficacious in all the cases quoted above, or that its application would be 

 profitable in all cases. 



II. Disinfection of seed or soil. 



Onion smut (Ustilago ccpulce, Frost) ; Barley smuts (U. hordci, P., 

 and U. inula, Jens.) ; Rye smut (Urocystis occulta, Rabh.) ; Oat 

 smuts (Ustilago avence, P., and U. Icevis, Kell.) ; Wheat smuts 

 (Ustilago tritici, P., Tilletia foztcns, B. & C, T. iritici, Bjerk.) ; 

 Potato scab (Oospora scabies, Thax.). 



III. Pruning or, in extreme cases, burning. 



Black knot of Plum and Cherry ; Peach yellows (whole tree burnt) ; 

 Apple canker. 



Fungicides may be used in conjunction with arsenical poisons against 

 insect and fungal attacks at the same time, e.g. for Apple-leaf spot, &c, 

 and Codlin moth. — F. J. C. 



Fung-us Diseases of Stone-fruit Trees in Australia, and their 

 Treatment. By P. McAlpine (Bull. Dep. Agr. Vict. March 1902, with 

 10 coloured plates and 327 figs., 165 pp.). — This treatise consists of two 

 parts, the first containing a general description of the principal diseases 

 and their treatment. The second part is devoted to technical descriptions 

 of the various fungi. 



In the first part the diseases treated of are confined to those of the 

 Almond, Apricot, Cherry, Peach, Nectarine, Plum, Cherry Plum, and 

 Japanese Plum. Those treated in full are Peach-leaf curl, Prune rust, 

 Shot-hole fungi, Peach freckle, Brown rot, Bark rot (attributed to Poly- 

 stictus cinnabar inus), Gummosis, Leaf scorch, and Split stone. 



The majority of these diseases are well known in this country, except 

 perhaps the Peach freckle, which is caused by Claclosporium carpophilum, 

 and the bark rot of Cherry and Apricot trees, which is attributed to a sapro- 

 phyte common enough in tropical and subtropical climates, but not found 

 in Britain. The writer, however, thinks that it becomes parasitic, not 

 only on the above fruit-trees, but also on living Eucalypti ; nevertheless 

 he admits that it is most common on dead wood. The treatise is profusely 

 illustrated. 



The second part, being technical descriptions of well-known species of 

 fungi, requires no comment; it includes 117 species. — M. C. C. 



Galeruca Cratsegi. By Lucien Iches. (Le Jard. Jan. 5, 1902, p. 



13).— A twig of Elm leaves showing the destruction of the foliage caused 

 by this coleopterous insect, together with magnified figures of the larva, 

 pupa, and perfect insect, with a full description. — C. W. D. 



