102 



KviATKovsKY (S. I.)- AoKnafli* peay/ibTaTaxTs MCKyccTBeHHaro I 

 oOntceHifl BbipyOoKi} nocjit cenbCKO-xosflMCTeeHHaro nojibso- 



BaHifl BTj JleOeflflHCKOIinj ntCHMMeCTBt. [Report on the results 

 of the afforestation of clearings after their agricultural use in 

 the Lebedjansk Forests.]— « JltCHan }KM3Hb M X03flMCTB0.» 



{^Forestry Life and Economy], Tambov, iv, no. 6, 1915, pp. 13-16, 



Some clearings in this forest were under agricultural cultivation for 

 six years (1907-1914) and in 1914 and 1915 they were replanted with 

 pine-trees. The number of larvae of Melolontha remaining in the soil 

 appears to have decreased considerably and the loss to the seedlings 

 irom them amounted to only about 2 per cent. The clearings in 

 question were made in 1890, and up till 1906 all attempts to re-afforest 

 them proved fruitless. 



TpYAbi AecflTaro coBtiMaHin arpoHOMOB-b npM EKaTepHHOcjiaBCKOM 

 fySepHCKOM SeMCKOM Ynpasi 4-ro 0KTfl6pfl 1915 roAa. [Proceed- 

 ings of the 10th Conference of Agronomists with the Executive 

 of the Zemstvoof the govt, of Ekaterinoslav, on the 17th October 

 1915. — Published by the Zemstvo of the govt, of Ekaterinoslav], 

 Ekaterinoslav, 1915, 59 pp. 



The two following papers on Entomology were read and discussed 

 at the Conference : — • 



(1). ViTKovsKY (N. N.). BpeAMienM wiyKM M aepHa bi> EKaiepMHO- 

 cjiaBCKOH ryOepHJH no HaSmoAeHiflMii TeKyiMaro roAa. [Pests 



of grain and flour in the govt, of Ekaterinoslav, as observed in 

 the current year], pp. 44-55. 



The following insect pests were observed in the grain stores during 

 1914:' — Calandra granaria, L., Tenebrio molitor, L., Tribolium confusmn, 

 Duv., Silvanus surinamensis, L., Laemophloeys testaceus, L., Tene- 

 brioides mauritanicus, L., Ephestia kuhniella, ZelL, Plodia inter- 

 punctella, Hb., and Pyralis farinalis, L. The most injurious were 

 C. granaria and E. kuhniella. The former attacked wheat, rye and 

 barley, especially the last-named. In grain stored in sacks only a 

 portion of the weevils are able to escape and return again, a great many 

 of them perishing in the sacking. In grain stored in bulk they do not 

 penetrate deeper than about 2h feet, owing to the pressure at greater 

 depths. A striking illustration of this was observed in one warehouse 

 where a quantity of barley which had been stored for 12 years showed 

 no signs of injury lower than 2| feet, while the upper strata were full 

 of various insects, including C. granaria. Although this last fact 

 tends to decrease the rates of possible damage given by A. I. Strachov- 

 Koltchin [see this Review, Series A, iii, p. 488], C. granaria is a serious 

 pest and, owing to the present scarcity of carbon bisulphide in Russia, 

 preventive remedies must be widely applied. Grain containing more 

 than 13| per cent, of moisture should not be accepted, and all grain 

 should be stored in closed warehouses which can be frequently 

 ventilated. 



