347 



apical bud, but mines the stem and frequently also the branches ; 

 its usual host-plants are various species of Cirsium and Carduus. 

 Cotton is occasionally injured by the caterpillars of Pyrausta nuhilalis 

 {Botys silacealis), which bore a long mine in the upper part of the stem, 

 causing it to break and hang down. 



Gratchev (A.). hobomtj cnocoSt yHMmomeHifl capaH4ii. (Mhkpo- 

 6ionorM4ecKiM Meiofl-b 6opb6bi ci. capaHMeti). [A new Method of 



destroying Locusts. (The Bacteriological Method).] — « TypKB- 



CTaHCKOe CejibCKOe X03flilCTB0.» — [Agriculture of Turkestan], 



Tashkent, xii, no. 2, February 1917, pp. 110-116. [Received 



12th July 1918.] 



This is a plea for giving Coceobacillus acridiorum, d'Herelle, a fair 



trial in Russia and for a careful study of its possibilities of checking 



the ravages of Dociostaurus {Stauronotus) maroccanus and Locusta 



{Pachytylus) migratoria in Turkestan. 



UVAROV (B.P.). OTHOlilCHie 3HT0M0n0r0BT> K"b HOBOMy MBTOfly 6opb6bi 

 CTj capaHMeBblMM. [The Attitude of Entomologists to the new 

 Method of controlling Locusts.] — « TypHeCTaHCKOB CenbCKOe 

 X03flMCTB0.)» [Agricidture of Turkestan], Tashkent, xii, no. 6, 

 June 1917, pp. 343-348. [Received 12th July 1918.] 



In this reply to the above article, the author expresses the opinion 

 that the bacteriological method of controlUng locusts has not yet 

 been fully studied and that further careful scientific investigations are 

 extremely necessary. For the time being the popularisation of this 

 method is therefore inopportune, as tending to discredit the estabhshed 

 remedial methods now in use. 



ripOTMBOCapaHMeBbm paSoibl BIj 1917 rofly. [Anti-Locust Operations 

 in 1917.]— « TypKecTaHCKoe CenbCKoe Xo3flMCTBO.» [Agricidture 

 of Turkestan], Tashkent, xii, no. 2, February 1917, pp. 139-144. 

 [Received 12th July 1918.] 



Owing to a large outbreak of locusts in 1916, favoured by the weather 

 conditions and by the absence of a proper campaign against the larvae, 

 due to a variety of causes connected with the War, over 225,000 acres 

 of land in the provinces of Samarkand and Syr-Darya were infested 

 with egg-clusters. Such an extensive oviposition by locusts has not 

 occurred since 1912, and the sum of £150,000 was assigned for the cam- 

 paign in 1917. Of this over £50,000 was estimated to cover the cost 

 of labour and over £25,000 that of insecticides. It was proposed to 

 use Locusticide, Paris green, white arsenic and sodium arsenite for 

 spraying and to spend about £16,000 on poisoned baits. 



Kii Bonpocy o nocTOflHHbix'b opraHM3auiflX'b no 6opb6t Cb BpeAMie- 

 jiflMn M 6ojit3HfliviMcejibCKo-xo3fliicTBeHHbix'b pacTeHJii Bii Typue- 



CTaHCKOHls Kpa'b. [On the Question of the permanent Organisa- 

 tions for the Control of Insect Pests and Diseases of cultivated 

 Plants in Turkestan.]— « TypKeCTaHCKOe CenbCKOe X03flilCTB0.» 



[Agriculture of Turkestan], Tashkent, xii, no. 2, February 1917, 

 pp. 144-148. [Received 12th July 1918.] 



The full text of the regulations governing the organisation of local 



