11(3 



/ 



K ^/^CHERBAKOV (Ph.). KjlGBepHafl 3BpMT0IVia '. 66 BMOJlOrMfl V\ X03flMCT- 



BeHHOe 3HaH6HM6. [Eiiryioma ^ihbns, Boh., its Biology and 

 Economic Importance l—tpyAbl UJailinOBCKOM CenbCHO-XoSflMCT- 



BGHHOM OnblTHOM CiaHUmi. [Works of the Shalilov Agric. Expt. 

 Sta.], Orel, 1919, no. 1, 1920, 52 pp., 3 plates. [Received 2nd 

 January 1922.] 



The biology of Brnchophagus {Eurytoma) gibbits, Boh., is described, 

 and the economic importance of this Chalcid as a pest of clover in 

 Russia is discussed [R.A.E., A, iii, 8]. Although it has a wide 

 distribution in Russia, the damage caused by it is not apparently 

 sufficient to warrant extensive remedial measures. A description is 

 given of an unidentified Chalcid parasite, which is apparently of little 

 importance in control of the pest. 



MicHELsoN (I. Ta.). BpeAMT6nM UmpycoBbixij Kynbiyp'b m wbpbt 



6opb6bl C-b HMMM. [Citrus Pests and their Control.]--|VlMHMCT6p- 



CTBO 36Mnefltnifl PecnyS/iMKH rpysiM. CyxyMCKan OnbiTHan 



CiaHUifl. [Minist. Agric, Georgian Republic, Sukhiim Expt. 

 Sta.], Sukhmn, Leaflet no. 12, 17th January 1920, 15 pp. 

 [Received 2nd January 1922.] 



The pests of Citrus are reviewed with special reference to those 

 occurring in Abchazia (Caucasus). These include Gryllotalpa gryllo- 

 talpa {vulgaris) ; unidentified species of thrips ; Pentatoma sp. ; 

 Syromastes sp., not causing much damage ; and the Aphids, Toxoptem 

 aurantiae, Koch {camelliae, Kalt.), also recorded from Batoum, and 

 Macrosiphnm {SipJionophora) citrifolii. The chief pests are, however, 

 the Coccids: Pidvinaria sp. ; Ceroplastes sp. ; and Aspidiotus sp., 

 which has recently become rnuch more numerous. Pseudococcus 

 {Dadylopius) citr i, " Risso, was less abundant in 1919 than in the 

 previous year. Saissetia {Lecanium) oleae, Wlk., is also an occasional 

 pest. Other miscellaneous insects recorded from Citrus in Abchazia 

 are Epicometis {Tropinota) hirta. Pod., and several mites. 



The remedial measures for these pests, as adopted elsewhere, are 

 discussed, and several formulae for the preparation of insecticides are 

 quoted. 



KOROLKOV (D. M). 0TH6T-b 33 1915 V. Pa60TaX-b no MSyHBHiK) 

 Bp6AMT6neM CaAOBblX"b PacieHiM. [Report for 1915 on the Work 

 in Connection with the Studv of Pests of Garden Plants.]— 



Maiepianbi no MsyMeHiH) Bp6AHbix-b HactKOivibix-b Mockobckom 

 fyOepHin. [Material for the Studv of Injurious Insects of the 

 Moscow Govt.]~Moscow, no. 7, 1917, 36 pp., 1 plate. [Received 

 2nd January 1922.] 



Zophodia convolutella, Hb. [R.A.E., A, iv, 326^ .and Incurvaria 

 capitella, CI. [R.A.E., A, iii, 643] are serious pests of currants and 

 gooseberries in Russia. The remedial measures advocated for the 

 latter include spraying before the buds open with milk of hme (3 lb. 

 unslaked Ume to one bucket water), cutting down the previous year's 

 canes, clean cultivation and the burning of all trash. A drastic but 

 effective method is to pick all the berries before they are quite ripe, 



