552 



Bogdaxov-Katkov (N. N.). KanyCTHafl T/lfl. [Cabbage Aphis.] — 

 MaAarenbCTBO HapoflHoro KoMMccapjiaTa SeM/ieflennn. [Puhl. 



of the Nat. ('o)ii)iiissai'iat ofAg^ric], Pclrograd, 192(1, 20 pp., 15 figs. 

 [Received 26th September 1921.1 

 This paper on the life-history and habits of Brevicoryne (Aphis) 

 hrassicae, L., is compiled from the works of previous authors. The 

 usual remedial measures are discussed, and instructions are given for 

 the preparation of tobacco extract, kerosene emulsion and soft soap 

 for spraying purposes. 



F.\BRiK.\NT (A. O.). 0praHM3autMfl flena samnibl PacieHMil. [Organi- 

 sation of Work for the Protection of Plants.]— MsflaTeilbCTBO 

 HapoflHoro KoMnccapnaTa Seivuieflennfl. [Publ. of the Nat. Com- 



iiiissan'at of Ai^ric], Moscou', 1919, 5G pp. [Received 26th 

 September 192^.] 



The organisation of work for the protection of plants in Russia and 

 other countries is reviewed. 



Bogdanov-Katkov (N. N.). MeflBeflKa {GryUoialpagryllotalpa,L.). — 

 MsAaiejibCTBO HapoAHoro KoMnccapnaTa 3eivineAeJiMfl. [Publ. 



of the Nat. Commissariat of Ai^^ric], Mcscow, Pctrogvad, Kiev, 

 1919, 3 pp., 3 figs. [Received 26th September 1921.] ^ 

 Gryllotafpa gryllotalpa, L., is recorded from various districts in 

 Russia as causing injury to many plants, including cabbages, potatoes, 

 radishes, water melons and oak trees. Two of the remedial measures 

 adopted are the use of white arsenic in the proportions of 1 lb. to 

 20 lb. of maize seed or flour, and kerosene mixed with sand at the rate 

 of 7 lb. to one load of sand. 



Bogdanov-Katkov (N. N.). KanyCTHafl BenflHKa. [Cabbage 



Butterfly.]— MaAaiejibCTBO HapoAHoro KoMnccapnaTa Sew- 



JieA6/1Mfl. [Publ. of the Nat. Coniinissariat of Agric], Moscow, 



Pctrogrady Kiev, 1919, 3 pp., 2 figs. [Received 26th September 



1921.] 



A brief account is given of the cabbage butterfly [Pieris brassicae] 



and its control. In the north of Russia outbreaks of this pest are 



sporadic, but when conditions are favourable, it occurs in great 



abundance and causes serious damage to many cruciferous crops, 



especially cabbage. 



KoROLKov (D. :\I.). Bopb5a c rjiaBHeMmmviM BpeAme/ifliviM CaAa, 

 OropOA M HeKOTOpblMM BpeAMTe/lflMM flo/lfl. [Remedial Measures 

 against the chief Pests of the Garden, Kitchen Garden and some 



Field Pests.]— MaAaie/ibCTBO HapoAHoro KoMnccapMaia 3eM- 



JieAe/lMfl. [Publ. Nat. Commissariat of Agric], Moscow, 1920, 

 154 pp., 48 plates. [Received 26th September 1921.] 

 This publication describes the general remedial measures to be 

 adopted against various garden and field pests. Brief descriptions of 

 the life-history of some of the insects concerned are given, as well as 

 tables showing the plant attacked, the time and character of injury, 

 and the remedial measures advocated. Instructions are also given 

 for the preparation of various insecticides. A list of the pests dealt 

 with is arranged alphabetically under the Russian popular names, but 

 including the scientific names. 



