499 



although expensive, this is the only practicable and succcsshil method 

 in places infested with the larvae. The ground must not be cleared 

 of its covering of debris, the removal of which favours the develop- 

 ment of this pest. When replanting the felled areas in the presence 

 of larvae of Melolontha, it is advisable to plant in the first instance 

 some deciduous tree, such as birch, which is less injured, subsequently 

 introducing pines by degrees. 



ViLMAN (I.). Bpart cocHbi-ocMHbi H Mtpaxij 6opb6bi Cb Heii Bii 

 CBfl3M Cl» 6opb60M Cl» MaMCKmfl"b xpymeMl. [On the enemy 

 of pine — the aspen-tree — and its elimination in connection with 

 the control of Melolontha.]— « HtCHSifl }KM3Hb M X08flMCTB0.» 

 [Forest Life and Economy], Tambov, v, nos. 3-4, 1916, pp. 26-28. 



As aspen trees favour the spread of the fungus, Coeoma innitorquwii, 

 the removal of these trees from pine plantations is very important. 

 Since the adults of Melolontha oviposit preferably on uncut areas and 

 mainly around their edges, the practice of felling in patches should be 

 discontinued. 



ViLMAN (I.). Mtpaxii 6opb6bl C"b flOnrOHOCHKOM'b. [On the control 

 of Hyhhius abietis.]— « JItOHafl }KM3Hb H X03HHCTB0.» [Forest 

 Life and Economy], Tambov, v, nos. 3-4, 1916, pp. 29-30. 



The control of Hylobius abietis is based on the inability of the weevil 

 to fly. Preventive measures include trap trenches, one foot wide 

 and one foot deep, with vertical walls, having at their bottom pits of 

 about 1 foot cube, at intervals of 60 or 70 feet. Where the area is 

 infested before the trees are felled, it must be left unplanted for two 

 years, when the weevils will be driven out by lack of food and will be 

 intercepted by the trenches. As the weevils winter in the pupal stage 

 underneath the thick bark of pine and spruce stumps, these must be 

 barked during the felling or early in the following spring, and this should 

 be stipulated in all contracts for the sale of timber. In the third year 

 the felled areas may be replanted, but trap trenches must be maintained 

 for two or three years more. Should the weevils appear on freshly 

 replanted areas, the only practicable remedy consists of traps formed of 

 pieces of pine, 1|- feet long and 4-6 inches thick, split in two, two or 

 three cuts being made with a knife in the bark deep enough to reach 

 the cambium, so as to produce an exudation of pitch. These should 

 be placed in the spaces between the lines of trees, at regular intervals, 

 having their bark side downwards. The weevils which settle on these 

 logs mast be collected twice a day, and the logs themselves renewed 

 every two or three days as they become dry. 



KuzNETzov (A). HoBbm Bpan> OKy/iflHTOBi. bts nnoflOBOWb hmtom- 



HMK'b. [A new enemy of buddings in fruit-nurseries.]— 

 « CaAOBOA'b.» [The HorticiiUurist], Rostov-on-Don, no. 8, August 

 1916, pp. 428— rew., 8 figs. 



Shoots of apples, pears, cherries, plums and apricots, which had been 

 budded in July and August of the preceding year, were found in the 

 following spring to be broken at the bases in the case of those shoots 



