ECONOMIC ZOOLOGY ENTOMOLOGY. 553 



rot of the coconut palm lias been identified, and after a careful study of the 

 organism and comparison with B. coli it was found impossible to ascertain 

 any characters by which the coconut organism could be distinguished from ' 

 the B. coli received from the animal pathological laboratory. 



It is concluded, therefore, that either B. coU or a form indistinguishable from 

 it by our present method of research is the cause of the coconut bud rot. 



A pine disease (Diplodia pinea), K. Bancroft [Roy. Bot. Card. Eeic, Bui. 

 Misc. Inform., 1911, No. 1, pp. 60-62). — The author reports a study of the 

 mode of entrance and the range of hosts of a fungus (D. pinea) found in the 

 diseased shoots of Finns insignis and P. montana from Cape Colony. 



The disease is confined to the terminal portions of the shoots, and is char- 

 acterized by the yellowing and subsequent shedding of the leaves, followed by 

 the death of from 10 to 18 in. of the terminal portion of the shoots. These 

 dead shoots remain attached to the tree, and furnish successive crops of 

 spores. The hyphse usually occur in the cortex and phloem, but may extend 

 into the wood along the medullary rays. 



Inoculation experiments with the spores of this fungus on unbroken surfaces 

 of the host gave negative results, but when drops of water containing spores 

 were placed on wounded surfaces infection occurred. In the experiments re- 

 ported species of Pinus were readily infected through wounds, but not Picea, 

 Abies, or Larix. 



The rusts of Tsuga canadensis, P. Spaulding (Phytopathology, 1 {1911), No. 

 3, pp. 94-96, figs. 2). — The author reports the occurrence and range of Perider- 

 mium peckii and P. fructigcnum, of which Cwoma tsugce is a synonym. The 

 latter occurs in 2 forms, one on the scales of the green cones and the other 

 on the young newly formed shoots of T. canadensis. 



Fungus diseases; their relation to Para rubber cultivation in the West 

 Indies, K. Bancroft {West India Com. Circ., 26 {1911), Nos. 329, pp. 220-223; 

 330, pp. 2Jt5-2Jt7; 331, pp. 268-270).— The author gives the characteristics of 

 the following diseases, and suggests methods of control for several of them : 

 Eoot diseases caused Vij Fomes scmitostns, Ilymenoclnjcte noxia, and Sphceros- 

 iiJhe rcpcns; stem diseases caused by Corticiiim jovanicum, Thyridaria tarda 

 {Diplodia cacaoicola), PhytophtJiora fahcri, thread blight fungus, die back 

 {Glooosporium alhoruhrum and Diplodio), and Euiypa caulivora; leaf diseases 

 caused by Pcstalozzia gncpini, P. palmarum, and several minor fungi; and a 

 fruit diseas-e due to Phytophthora faberi. 



ECONOMIC ZOOLOCtY— ENTOMOLOGY. 



Progress of game protection in 1910, T. S. Palmer and II. Oldys (U. S. 

 Dept. Agr., Bur. Biol. Survey Circ. 80, pp. 36, fig. 1). — In this annual report 

 on the subject (E. S. R., 23, p. 253), it is shown that the year 1910 was marked 

 by steady progress in the movement for the increase of game by propagation 

 and the establishment of game preserves. A chronological record of events 

 relating to game protection during the year is appended. 



The game market of to-day, H. Oldys ( U. S. Dept. Agr. Yeardook 1910, pp. 

 2^3-25^, maps 6). — In this paper the author discusses the early abundance of 

 game, the increase in prices of game, present condition of game, causes of de- 

 crease, restrictive laws, markets, and the present market supply. 



Killing ground squirrels, W. D. Foster {Washington' Sta. Popular Bui. 35, 

 pp. Jf). — As the result of serious injury to corn on the college farm in 1904 

 considerable poison was used during the remainder of the year, but apparently 

 without much effect. 



