1156 EXPERIMENT STATION RECORD. 



The importance of the study of entomology; how to collect (and preserve) 

 insects, F. L. Washburn {Minnesota 8ta. Bid. 105, pp. 29, pis. 4, flffs. 61). — This 

 bulletin discusses the economic relations of insect life to wealth production, 

 and gives directions for the collection and preservation of insects for study. 

 Illustrations are given of many of the more important economic species. 



Entomological memoirs, J. H. Fabre (Souvenirs Entomologiques. Paris 

 [1907], 10. scr., pp. 355, figs. 10). — The author presents in a popular manner 

 his observations on the habits and instincts of various insects. Some of the 

 species are of considerable economic importance, particularly the cockchafers, 

 species of Cossus. and blue-bottle fly. 



[Entomological notes], C. J. S. Bethune {Ann. Rpt. Ontario Agr. Col. and 

 Expt. Farm, 33 {1901), pp. 53-55, 56-60). — During the year reports were re- 

 ceived from a large number of localities showing an unusual amount of injury 

 from oyster-shell bark-louse. Mention is also made of the injuries due to scurfy 

 bark-louse, San Jose scale, white grubs, plant lice, and cutworms {Pcridroma 

 saueia). The cutworm outbreak was checked to some extent by the use of 

 poisoned baits. 



In a study of the preparation of lime-sulphur it was found that the best 

 results are obtained when the mixture is boiled for 45 to GO minutes in about 

 1.3 gal. of water. The color which develops in the mixture at the end of this 

 period of boiling depends upon the brand of lime used. It is necessary that 

 the wash be kept stirred during its application, since otherwise the lower and 

 upper layers will have a different composition. Xotes are also given on the 

 use of air-slaked lime and arsenite of lead for asparagus beetles, banding trees 

 for cotton moth, kerosene emulsion for oyster-sbell scale, and hydi"ocyanic-acid 

 gas for white fly in. greenhouses (see p. 1160). 



The pocket gopher, T. H. Scheffek (Kansas Sta. Bui. 152. pp. 110-l.'f5, figs. 

 15). — The study of tlie pocket gopher has been carried on by the author for the 

 past 3 years. The species which occurs in Kansas, Geomys bursarius, is most 

 abundant along the drainage area of the Kansas River. It digs runways in 

 cultivated and uncultivated flelds, throwing up soil at irregular intervals in the 

 form of mounds, in this way doing much damage to alfalfa, nursery trees, 

 orchards, truck croi)s, and potatoes. A single gopher may throw up several 

 mounds daily. There is but one brood of gophers annually and the size of the 

 litter averages four. The present Kansas laws regarding the extermination of 

 the pocket goi)her are ineftective. 



It is recommended by the author that the plan of furnishing poison at the 

 expense of a county or township be adopted. A number of traps have been 

 devised and give fairly good results but are slower in operation than poisoning. 

 Fumigation is unsatisfactory. The department of zoology and entomology of 

 the Kansas Station prepares a sirup containing strychnin, which is distributed 

 among farmers for use in poisoning pocket gophers. Shelled corn is treated 

 with this poisoned sirup and then introduced into the burrows of the gophers. 



Report of the State entomologist for the year 1906, S. Lampa (Meddel. K. 

 Landtbr. Styr. [Sweden], 1907, Xo. 121(2), pp. 32, figs. 2).— During the year 

 under report more or less serious injuries were noted from the attacks of 

 Cheimatobia brumata, Galeruca tenella, the pea plant louse, ox warble fly, mos- 

 quitoes, codling moth, tussock moth, cutworms, etc. Brief notes are given on 

 the prevalence of these insects and practical suggestions are made regarding 

 their control. 



Insects injurious to cultivated plants in Bulgaria, K. Malkoff (Trudove 

 Drshav. Zeml. Opitna Stanz. Sadovo [Arb. Staatl. Landw. Vers. Stat. Sadovo], 

 1907, No. 2, pp. Jf7-5.'f). — A list is given of 195 species of injurious insects be- 



