Pr(X'eedixgs. li)2;5 ]8;i 



Uevt', ;ifiain. ;is in 1918, tlic liilienuu'iila were not always penetrated. 

 Some crotelies containing: hibernacula, encrusted with a heavy deposit 

 of lime sulphur in the April spraying-, yielded healthy larvae a week 

 after application, but, on the whole, results were satisfactory. In this 

 year, lead arsenate applications applied as soon after blossoming as 

 possible gave better results than the liiue sulphur sprays applied just 

 before blossoming. 



In consideration of the whole matter of spraying, growers have the 

 choice of lime sulphur or lead arsenate, used separately or in association 

 in two sprays, one just before and the other just after blossoming. In a 

 heavy degree of attack, both applications may be made. The lime sul- 

 phur application lias a slight preference over the later lead arsenate 

 sprays owing to its possible effect against the fungous disease, "leaf 

 curl." The spray for "leaf cui'l" is an early lime sulphur spray applied 

 even before the buds break. A grower with a light attack of fungous 

 and peach worm has the opportunity of economizing by combining this 

 peach leaf curl spray with the spray for the peach worm. 



FOREST ENTOMOLOGY 



By Rali'h Hopping. 



If I were to ask yon wli;it was tlie most imjiortant crop of British 

 Columbia, many of you would jirobably answer "apples" or "straw- 

 berries." for instance. The forests. hoAvever, jiroduce the most valuable 

 crop and turn in the nu)st revenue to the Provincial Government. I uiuler- 

 staud the revenue is greater than all the other industries combined. 



Althougli the Government is doing a great deal at the present time 

 to preserve the forests, we are not properly or adequately taking care 

 of this, the most valuable crop in the province ; principally because the 

 public does not realize that it is so valuable or so necessary, and we must 

 liave the support of the public when public money is expended. 



The forests of B. C have been subject to great losses from year to 

 year, through two chief agencies: FIRE and DESTRIX'TIVE INSECTS. 

 Fire is the more spectacular, but the depredations of insects are at present 

 of much greater importance in the open stands of yellow pine in the dry 

 southern interior of the jirovince. During the i)ast eight years the loss 

 from insects in and around Princeton Bnd Merritt has amounted to over 

 200 million feet of lumber, worth at lea.st 6 million dollars to the province. 



The fires an' being taken care of more and more effectively as the 

 years go on by the protective force of the Forest Branch. Through close 

 co-operation with this same Forest Branch, we are gradually beginning 

 to take care of the insect depredations. This work, however, is a special- 

 ized department, as the insects attacking trees are of many species, each 

 species of tree often having its own special group of in.sects. 



