ECONOMIC ZOOLOGY ENTOMOLOGY. 659 



TLe fungus proved to be Ji new si^ecies and has been named Ascocli4/ta chriju- 

 (inthcini n. sp. Repeated inoculations that have been made seem to indicate 

 lliat the fnufrns is the cause of the diseased condition, and that it can gain 

 entrance to the tissues of the blossoms more easily than to the tissues of the 

 leaves, petioles, and stems. 



A new chrysanthemum disease, E. S. Salmon (Gard. Chron., 3. ser., .'/? 

 ( l!)07), yo. 1082, p. 213, figs. 2). — A description is given of the leaf spot of chrys- 

 anthemums which is caused by Scptorin chrysanthemi. The leaves which are 

 affected exhibit brown patches, become crumpled at the margins, and fall pre- 

 maturely. On the basis of investigations that have been carried on at a number 

 of places in this country, the author recommends spraying with Bordeaux mix- 

 ture or one of the clear fungicides. 



According to Magnus (see below), the proper name of this fungus is 



5. chrysnnthemclla. 



Concerning' the Septoria on chrysanthemums and the occurrence of the 

 disease in Central Europe, P. .Magnus (Bcr. Dent. Bot. GcsclL, 25 (1907), Xo. 



6, PI). 2!)f)~.301 ) . — ^A study of material has convinced the author that the fungus 

 hitherto described as S. chrysanthemi should be known as S. chrysaiitheincUa. 

 The disease seems to be well recognized and to occur in a number of places in 

 central Europe. This is the third troublesome fungus disease of chrysanthe- 

 mums, the others being mildew {Oidium chrysanthemi) and rust {Puccinia 

 chrysanthemi). 



A study of diseases of Pelargonium, J. Chifflot {Jour. Soc. Nat. Hart. 

 France, 4. ser., S (1907), June, pp. S'fS-355). — A summary is given of the various 

 parasitic and other diseases which affect the cultivated Pelargonium, the author 

 grouping them under the headings of plant parasites, animal parasites, and 

 organic diseases. 



Among the parasites due to plants attention is called to the attack of Oro- 

 hanchc hedcrar on the roots of the Pelargonium, this being the only phanero- 

 gamic parasite mentioned. Among the fungi, brief accounts are given of the 

 attacks of Botrytis cinerea and B. doryphora, Fusarium prlaryonii, lihahdos- 

 pora cwspitulosa, and BaciUus cauUvorus, all of which attack the stems and 

 roots of plants, (iJctosporium pclargonii, Macrosporium pelargonii, M. niac- 

 nlpinianum, which is especially destructive to the varieties of Pelargonium zo- 

 nule, Cercospora brunkii, Fumago vagans, Diplococcium conjunctum, Botrytis 

 cinerea, and B. doryphora occurring on the leaves. .F^cidium pchirgonii and 

 Puccinia granularis are also found to attack certain varieties of Pelargonium. 



The principal insects are Siphonophora pelargonii, scale insects, and red spi- 

 ders. A number of forms of disease which are attributed to improper soil and 

 other conditions are briefly described. 



The action of salts of copper in the treatment of plant diseases, II. Lafox\ 

 (Jour. Soc. Nat. Hort. France, .'/. ser., 8 (1907), June, pp. 3')l)-36S). — A discus- 

 sion is given of the action of copper when used as a fungicide, with directions 

 for the preparation of a number of fungicides in which copper is the main 

 principle. 



ECONOMIC ZOOLOGY— ENTOMOLOGY. 



An economic study of field mice, D. E. Lantz (U. S. Dept: Agr., Biol. Sur- 

 rey Bui. 31, pp. li'h pis. 8, figs. 3). — A classification of the field mice which oc- 

 cur in this country is given, together with notes on their distribution and habits. 

 Three typical species to which attention is given are Microtus pcnnsylvani<;us, 

 M. ochrogaster, and M. pinetorum scalopsoides. 



A detailed account is given of the damage done by mice to meadows, pastures, 

 cereals, forage crops, garden crops, small fruits, nursery stock, orchards, forest 



