442 



Bouche), is a serious pest of fruit trees. A popular account of its life- 

 history is given and the smearing of the trees, early in spring, with 

 California mixture is recommended. Spraying with kerosene emulsiort 

 (2 lb. of green soap, 12 lb. of kerosene, in about 23 gallons of water) 

 or with a .5 per cent, solution of kerosene in water, three times at 

 intervals of 1 or 2 days, is also suggested. 



EtonnereHb o BpeAMTenflxii cenbCKaro xosflHCTsa m Mtpaxii 6opb6br 

 C"b HMMM. [Bulletins on pests of Agriculture and methods of 

 controlling them.] PubHshed by the Entomological and Phy to- 

 pathological Bureau of the Zemstvo of the govt, of Charkov, 

 Charkov, iii, no. 1, January 1915, 47 pp. [Received 15th May 1915.]: 



The following articles relating to Entomology appear in this 

 number : — 



V0STRIK0V(P.). HtCKOJlbKO CHOBl, MbllUbflKOBHCTO-HMCnOM-b Haipt. 



[A few words about sodium arsenite.] pp. 2-5. 



Sodium arsenite, in the form of a ready-made insecticide, manu- 

 factured by a firm in Theodosia, consisting of 4 parts of sodium arsenite, 

 3 parts of water and 4 parts of sugar- molasses, was successfully tested 

 during the campaign against Locusta {Pachytilus) nngratoria in the' 

 government of Astrachan in 1914. During rainy weather this insecti- 

 cide, 1 lb. in about 14 gallons of water, caused serious scorchicg of the- 

 reeds and sedges, while a solafcion of 1 lb. in about 20 gallons proved 

 harmless in rainy weather, but not in fine. The death-rate amongst 

 the locusts was 100 per cent. In hot weather, 1 lb. of the insecticide 

 in 33-35 gallons gave good results in the damp climate of the delta 

 of the Volga, but in a dry, steppe locality even this may prove dangerous „ 

 The application of this insecti(;ide, besides the excellent results obtained, 

 proved less troublesome than that of Paris green, and the cost was 

 only one-tenth as much. To spray effectively 2| acres, 10 lb. of green 

 against only 4 lb. of the above insecticide were required. The author 

 thinks that this insecticide may prove useful in a solution of 1 lb. 

 in 55-58 gallons of water against many other pests controlled hitherto- 

 with Paris green. 



AvERiN (Y.). KpaTKJM o63opi> epeAHTe/ieM Ha6/iK)AaBiijHXCH bii 1914 

 rofly M BosMOWHOCTb Hxi) noflBneHJfl bi> 1915 r. [A brief 

 review of pests noticed in 1914, and the possibility of their 

 appearance in 1915.] pp. 7-13. 



The following pests of orchards are mentioned : — Anthonomiibs 

 pomorum, L., was very injurious, destroying 20-60 per cent, of apple 

 buds ; RhyncJiiies pauxillus, Germ., defohated a large number of trees ; 

 Sciaphobu-s squalulus, Gyl., was injurious to buds of cherry, plum,, 

 pear and apple trees, the damage increasing yearly ; Byturus tomen- 

 tosus, ¥., was first noticed in large numbers in the district of Valk ; 

 Hyponometita mallinellus, Zell., was injurious in many districts ; Oydia 

 pomonella does serious damage every year and is expected again in 

 1915 ; Aphis pomi, de Geer, and Myztis cerasi have done great damage 

 to some orchards ; Gryllotalpa gryllotalpa, L., injured roots of young; 

 plants in nurseries. 



