91 



Anutchin (A). Maiepianbi ktj 6iojioriM Hoearo Bpeflmenfl JiiouepHbi- 

 niOUepHOBOM MOJIM. [Materials for the biology of a new pest of 

 lucerne-" lucerne-moth "]. — « TypKeciaHCKOe CenbCKOe X03flM- 



CTBO.» [Agriculture of Turkestwi], Tashkent, no. 10, October 

 1914, pp. 913-916. 



A new Lepidopterous pest of lucerne, discovered in August 1914, 

 in the lucerne fields of the experimental station in the Starvation 

 Desert, where it has done great damage, is recorded. This moth has 

 not yet been identified, but the females oviposit on the upper leaves, 

 the larvae feeding in a web. Caterpillars of various stages were first 

 discovered on 23rd August and the first imago was observed on 6th 

 September. Two generations appear to have occurred between 23rd 

 August and 13th October. 



Plotnikov (V.). Ktj Bonpocy o 6opb6t ct, aaiaiCKOii capaHMeti btj 

 CeMMp'^Hb't. [The question of the control of Locusta migratoria 

 in the province of Semiretchensk (Turkestan).] — «TypKeCTaHCKOe 

 CejlbCKOe X03flMCTB0.» [Agriculture of Turkestan], Tashkent, 

 no. 10, October 1914, pp. 900-912. 



The author was deputed to investigate the problem of controlling 

 locusts in the province of Semiretchensk, the authorities of which 

 obtained a grant of about £50,000 for the purpose of totally destroying 

 the breeding places. The history of the outbreaks of Locusta migratoria 

 in that province, since 1869, is reviewed ; in the autumn of 1913, 

 more than 81,000 acres were infested, the figure not including the 

 district of Lepsiask, which is usually the most afPected. The breeding 

 places of locusts in the province are situated round the shores of several 

 lakes and on the banks of some of the rivers. All these areas 

 are probably connected with those in the adjoining districts of the 

 province of Syr-daria. Up to 1911, the campaign was conducted 

 chiefly by means of driving into trenches, burning, etc., but since then 

 spraying with Paris green has gradually been introduced. Owing to 

 the large area involved, the presence of infested areas in the adjoining 

 parts of China which cannot be controlled from Russia, and the difficulty 

 of conducting the campaign in many outlying districts arising from 

 the absence of roads, etc., control measures must chiefly protect the 

 cultivated areas by concentrating the operations and limiting them 

 to such places. Many infested areas are covered only with reeds, 

 which, although serving as forage for the horses and cattle of the 

 Kirghis, are so abundant that the damage done is not important, nor 

 is the agriculture of the Kirghis there of much consequence. There 

 is a possibility of damage being done to cultivated crops by migrating 

 swarms coming from these districts, but the available information 

 goes to show that the greatest devastation in a given locality is usually 

 caused by locusts hatched locally. Should the campaign be con- 

 ducted over all the breeding places, the advantages gained will not 

 compensate for the enormous cost of such an undertaking. The 

 organisation and conduct of the campaign is detailed, and spraying 

 with Paris green is recommended in place of sodium arsenate or 

 arsenite. as the latter would scorch the reeds, which are of some 

 importance to the natives ; where spraying is not possible, driving into 

 trenches and burying, or burning the insects, is advised. 



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