171 



REVIEW 



Annals des Epiphyties. Edited by Marchal, P. and Foex, E., Tome VII, 

 pp. 1-464 + Ixxxvii. Memoires et Rapports presentes au Comite 

 Superieur des Stations de Reclierches en 1919 et 1920. Ministere de 

 I'agriculture, Paris, 1921. 25 frs. 



The volume is planned as in previous years, an interesting summary 

 of the occurrence in France of plant diseases of physiological nature and 

 due to insect, fungus and bacterial parasites occupying pages i-Lxxxviii, 

 and brief reports on the activities in the several laboratories of plant 

 pathology and entomology in France filling the last twenty pages. Of 

 the nineteen original papers the first (pp. 1-115) is by G. Arnaud and is 

 a re-grouping into a new family, the Parodiellinaceae of all the Pyreno- 

 mycetes possessing internal mycelia with definite haustoria, parasitic 

 especially on the leaves of higher plants. Most of the family have also 

 external mycelia and contain a bright soluble pigment. The genera so 

 grouped include Bagnisiopsis, Parodiellina, Chevaliera, Parodiopsis, 

 Perisporina, Nematothecium, the Erysiphaceae, Exosporina, Septoidium, 

 Ovulariopsis, Oidiopsis and Oidium. The thesis is elaborated in some 

 detail and the memoir, which is illustrated by 25 text-figures and 10 

 plates, contains much matter of general mycological interest. In 

 pp. 117-167, P. Vayssiere gives an account of the campaign against the 

 epidemic of Moroccan locust {Dociostaurus Maroccanus) in Crau in 1920. 

 The procedure adopted is described in detail, perhaps the most striking 

 item being the use of " lance-flammes," the programme for the 1921 

 offensive is outlined and the paper is illustrated by 11 plates. Pages 169- 

 236 are occupied by papers by A. Paillot and by J. Feytaud on the 

 simultaneous control of insect and fungus pests of fruit trees by mixed 

 sprays. Arsenical-lime-sulphur, Bordeaux mixture plus arsenate of lime, 

 Bordeaux mixture plus lead arsenate and lime-sulphur plus lead arsenate 

 are recommended. An interesting paper is contributed (pp. 237-266) 

 by L. Chopard on the biology and control of the Argentine ant {Irido- 

 myrtnex humilis var. arrogans) in the south of France. Pages 267-314 

 are occupied by a number of papers on potato diseases by H. M. Quanjer, 

 E. Foex, J. Aumiot, E. Blanchard and C. Perret. The chief problems in 

 question are Mosaic disease. Leaf Curl and allied troubles, and views 



