293 



used being lead arsenate, sulphur and talcum. While easier to apply 

 than lime-sulphur wash, and giving at least equally good results, 

 the dusting method has the disadvantage of being expensive. It 

 has been decided to continue dusting at the institute, and it is hoped 

 to demonstrate the ultimate economy of this method. 



Weiss (H. B) & Nicolay (A. S.). Notes on Zeugoplwra scutellaris, 

 Suflr., a European Poplar Leaf-miner, in New Jersey (Col). — Entom. 

 News, Philadelphia, Pa., sxx, no. 5, May 1919, pp. 124-127, 1 fig. 



This Chrysomelid beetle was found in a New Jersey nursery on 

 Populus deUoides. The different stages are described. The eggs are 

 deposited on the leaves, of which the emerging larvae mine the tissues 

 in July ; they are full-grown by August and drop to the ground to 

 pupate, though this probably does not take place until the following 

 spring. The adults appear early in the summer and feed on the 

 poplar leaves, the terminal ones being preferred and becoming com- 

 pletely skeletonised. This combined mining and feeding results in 

 complete destruction of the foliage. 



Gage (J. H.). The Staining of Coccids (Homop.). — Entom. Neivs, 

 Philadelphia Pa., xxx, no. 5, May 1919, pp. 142-143. 



As a result of experiments with various stains for Coccidae and 

 allied insects, saurefuchsin 0'5 gram., 10 per cent, hydrochloric acid, 

 25 cc. and distilled water 300 cc. is recommended. Full particulars 

 of the methods of procedure are given. 



Davis (J. J.). Grasshopper Control in Indiana. — Purdue Univ. Agric. 

 Expt. Sta. , Lafayette, Ind., Circ. no. 88. January 1919, 8 pp., 9 figs. ^ 

 [Keceived 15th May 1919.] 



The measures against grasshoppers suggested as suitable for the 

 conditions in Indiana are egg destruction in the autumn and winter 

 by ploughing to a depth of 6 inches, and the use of poisoned 

 bran or sawdust baits for killing the adults and young hoppers. The 

 following formula is given. Bran, bran and sawdust in equal propor- 

 tions, or sawdust alone 25 lb., Paris green, crude arsenious oxide 

 or white arsenic 1 lb., molasses 2 U.S. qts., 6 lemons, bananas or oranges 

 or one ounce of lemon extract, water 1 to 2 U.S. gals. ; from seven to 

 ten pounds of this bait are required per acre. 



The grasshoppers may also be collected by means of grasshopper 

 catchers, and in this case they can be utilised as food for poultry. 

 This method is described. 



Reports on the State of the Crops in each Province of Spain on the 

 20th April 1919. — Bol. Agric. Tecnica y Economica, Madrid, xi, 

 no. 124, April 1919, pp. 341-356. 



In Cordova oaks are already showing infestation with Tortrix 

 viridana, and it is feared that the acorn crop, as in previous years, 

 will be almost completely destroyed. In Huelva, spring-sown vege- 

 table crops are being somewhat damaged by Aphis fabae. Oak 

 trees are being attacked by Porthetria {Liparis) dispar. Locusts 

 are causing considerable damage, although occurring within a limited 



