151 



Ermakov (V.). PaAMKanbHbiM cnoco6"b MCTpe6neHifl Tneti. [A radical 

 method of destroying Apliids.]— « CaAOBOfll..» [The Horticul- 

 turist], Rostov-on-Don, xv, no. 12, December 1916, pp. 654-656. 



In accordance w^th his views on the importance of the relation 

 between ants and Aphids [see this i^et'ze^^', Ser. A, iii, p. 486, iv, p. 381], 

 the author suggests that the only thorough measure against the 

 latter is to destroy the ants. For this purpose, he has previously 

 recommended the use of a weak decoction of cow-dung ; he has found 

 that this liquid is quite harmless to the roots and that it also destroys 

 mole-crickets. After he had destroyed the ants in his orchard, frost- 

 bitten trees disappeared, and the opinion is expressed that the 

 damage usually attributed to frost is due to a lack of uniformity 

 of movement of sap in the trees, resulting from the presence of ants 

 on the roots. Ants may also play a similar part in connection with 

 Phylloxera, in which case the destruction of ant-hills in vineyards 

 is indicated. 



DzENGELEvsKY (P. I.)- BuHOFpaAHbiM Tpy6K0BepT"b. [Byctiscus 

 betulae.] — ttCaAOBOAl)-^ [The Horticulturist], Rostov-on-Don, 

 XV, no. 12, December 1916, pp, 662-663. 



Byctiscus betulae {Rhynchites betuleti) occurs in large numbers in 

 some vineyards of the province of Don. This weevil, which feeds 

 on leaves of vine and many other plants, is principally injurious 

 during the oviposition period, when the females gnaw the petioles 

 of the leaves, causing them to wither. The measures against it 

 include shaking the adults on to sheets, collecting and burning the 

 infested leaves, and digging the soil late in autumn to destroy the 

 hibernating beetles by exposing them to the cold. 



Balkhozin. Bopb6a C"b MypaebHMH. [The Control of Ants.] — 

 «PycCKiM riMenoeOAHblM JlMCTOK"b.» [The Russian Beekeeping 

 Gazette], Moscow, xxxi, no. 10-11, October-November 1916, 

 pp. 372-373. [Received 5th Januaryl917.] 



Hyposulphate of soda is recommended as an effective and cheap 

 remedy for keeping ants out of bee-hives. Small pieces of it should 

 be placed in various corners of the hives which are inaccessible to 

 the bees. 



RusHKovsKY (I. A.). 3HTOMonorimecKifl MScntAOBaHin bti 1914 roAy. 



[Entomological Investigations in 1914.]— « MtponpiflTJfl y(|)MM- 

 CKaro fySepHCKaro SewicTBa no ynymueHiio ce/ibCKaro xosniiCTBa 

 Bl} 1914 rOAy.» [Agricultural hnprovement Measures of the 

 Zemstvo of the Govt, of Ufa in 1914], Ufa, 1914, pp. 31-34. 

 [Received 8th January 1917.] 



This is a short prehminary report on the investigations carried out 

 by the author in 1914; in continuation of work done in the previous 

 year [see this Review, Ser. A, 111, p. 480]. Grain fields in the govern- 

 ment of Ufa are chiefly injured by insect pests in the spring, except 

 in the case of wire- worms and caterpillars of Euxoa segetis, SchiS., 

 which are present in many localities and do great damage to crops 

 in the autumn. The chief spring pest during the year under report 



