498 



plots, which had not been put to agricultural uses before aftorestation, 

 the loss Avas 75-90 per cent. The small results obtained are attributed 

 to the fact that 1911 and 1912 were years iu which there were great 

 numbers of adults and thus years of great activity of their larvae ; that 

 the first ploughing of the ground was not done at the most favourable 

 time, i.e., the summer months, when the larvae are near the surface; 

 and that the most suitable crops were not selected, namely, roots and 

 crops grown as green manure. 



BoGOLiuBov (M.). peayjibTaiaxTj ncKyccTBeHHaro paseeAeHifl ntca 

 nocnt cenbCKO-xo3fl((CTBeHHaro nonbsoeaHiH 6-h GepnoBCKOM-b 



n'bCHMHeCTB'b. [On the results of aftorestation after agricul- 

 tural utilization of the soil in the Serpovsk Forestry.] — « Jl'kcHan 

 }KH3Hb M X03nilCTB0.» [Forest Lije mid Economy], Tambov, v, 

 no. 2, 1916, pp. 18-22. 



The afforestation of some plots in this forestry was begun in 1912, 

 after they have been put to agricultural use for some years previously, 

 but the results do not show that this method has any great effect in 

 decreasing the damage by lar\ae of Melolontha. In some cases the 

 damage on such plots was greater than on neighbouring ones, not used 

 for agricultural purposes previous to afforestation. The author does 

 not, however, regard these results as conclusive, partly on account of 

 the relatively short period on which the observations are based, and 

 also because of the absence of data as to the infestation of the soil and 

 the age of the larvae before afforestation. The necessity of more 

 thorough trials over a longer period is urged. 



MicHAiLOV (I.). JltcOKynbTypHblfl pa60TbI 1914 rOAa. [Forest- 

 cultivation works in 1914.]— « JltCHafl >Kl13Hb M X03flMCTB0.» 



[Forest Life and Economy] Tambov, v, no. 3-4, 1916, pp. 10-19. 



This is a review of the work in the forests of the government of 

 Tambov, from the reports of the foresters. The pests noticed wefe : 

 larvae of Melolontha, which caused damage varyiuer from 25 per cent, 

 to 95 per cent, in the plantations ; the pine weevil [Hylobius, abietis]; 

 and the spruce weevil, against which traps of fresh spruce bark weie 

 used, the weevils being collected from under them and destroyed. 



ViLMAN (I.). Heibipe ocHOBHbix-b ntcoBOflCTBeHHbixT. Bonpoca. [Four 



fundamental questions of forest-cultivation.] — « JI'feCHafl }KM3Hb 

 M X03flilCTB0.» [Forest Life and Economy], Tambov, v, nos. 3-4, 

 1916, pp. 20-25. 



The methods of cultivation adopted during aftorestation are divided 

 into two groups, according to whether they have to be combined with 

 remedies for controlling the larvae of Melolontha or not. The first 

 includes those methods which are directed towards improving the 

 physical qualities of the soil, so as to allow young seedlings to develo]> 

 sufficiently to be able to resist attack. This can be effected by repeated 

 weeding, combined with thorough cultivation of the upper layers of 

 the soil, both along the lines of trees and in the spaces between them ; 



