1144 EXPERIMENT STATION EECOED. 



is believed tliat after more field work of this sort has been done a reliable 

 basis will be formed for generalizations regarding the actual value of birds to 

 the fiirnier. 



A history of the commission of agricultural parasitology, A. Meraz (Bol. 

 Com. Par. Ar/r., 4 {1901), No. 1, pl). 106, i)Is. 3). — The results obtained by the 

 Mexican commission of agricultural parasitology during the past (! years are 

 sunnnarized in this report with particular reference to the l)earing of this work 

 vipon the advancement of ]iractical agriculture. Particular mention is made of 

 the work of the commission in the study of injurious insects and fungus 

 diseases. 



Entomological notes, W. \\\ Froggatt (Agr. Gaz. N. 8. Wales. 18 (1901), 

 No. 2, pp. I.'i9-152). — Brief notes are given on the bot fly, the elephant beetle 

 on apple trees, and wireworms in pastures. 



Report upon the work of the State crop pest commission, W. Newell 

 (Crop Pcf<i Coin. La. Circ Li. pp. It). — Brief mention is made of the details of 

 office work, publication of circulars, exhibits at fairs, cooperation with the 

 Bureau of Entomology of this Department, and lectures given by the members 

 of the Louisiana Crop Pest Commission. Attention is being given to nursery 

 inspection, the eradication of the white fly and cattle ticks, and a study of the 

 New Orleans ant. In 1906, the red-i^nk fungus was introduced into Louisiana 

 orange groves, and despite the dry season which is considered unfavorable to 

 its development, more than 95 per cent of the white flies were destroyed by it. 



Insects and diseases liable to be introduced into Mississippi, G. W. Her- 

 RicK (Mis;.sissi])j)i >S7«. Bill. 90. pp. 16. figs. 9). — Attention is called to the possi- 

 bility of introducing into Mississippi the San Jose scale, new peach scale, 

 woolly aphis, strawlierry louse, cotton-boll weevil.' black knot, crown gall, and 

 peach rosette. These pests and fungus diseases are briefly described and 

 directions are given for combating them if they should appear. 



A natural history of the British lepidoptera, J. W. Tutt (LoikIoh: Swan, 

 Houncnsclicin cC Co.; Berlin: Friedliinder tt Son, 1906, vol. 5, pp. XIII +5.58. pis. 

 6). — In the first part of this volume a general account is given of hybrids and 

 mongrels among lepidoptera with numerous instances of each and with mention 

 of the laws of heredity observed in these phenomena. 



The greater part of the volume is occupied with a detailed account of the 

 group Alucitides, including descriptions of species, analytical tables for identi- 

 fication of species, and biological notes. 



The principal animal enemies of wheat, L. Vivauelli (Rivista. 4. ser., IS 

 (1901), Nos. 1, pp. 5-9; 2, pp. 33-31; 3, pp. 56-60; J,, pp. 80-84; 5. pp. 105-108; 

 6. pp. 129-131; 1, pp. 158-161; 8, pp. 112-11 4, figs. 3).— The author presents a 

 general review of the known facts regarding the appeai-ance, biology, and 

 means of combating the more important insect and other enemies of wheat. 

 In this discussion notes are given on cockchafers, wireworms, mole crickets, 

 cutworms, Hessian fly, wheat midge, Sitophyliis granarivs, grain weevil, nema- 

 tode worms, and certain species of birds. 



Thrips, L. P. de Bussy (Elcded. Deli-Proefsiat. Medan, 1 (1901), No. 5, pp. 

 112-11 'i). — A brief report is made of the injury to tobacco as a result of a seri- 

 ous infestation with tobacco thrips. In combating this pest the best results 

 were obtained from the thorough application of kerosene emulsion. 



Economic notes on aphids and coccinellids, R. 11. .Ioiinson (Ent. News, 18 

 (1901), No. 5, pp. 11 1-11 'i)- — In studying lady beetles the author has had occa- 

 sion to observe plant lice on various native and introduced sjiecies of plants, 

 some of which are not commonly reported as being infested with plant lice. It 

 appears that the lady birds which feed upon these plant lice are not found in 

 the same abundance on all of the host plants upon which the plant lice feed. 



