Q2 ' Canadian For<s{r>j JoudiuI, .Jnuc, 1915 



Vlnalina Ihe Jogs.-Yihere water is available, the simplest method i. to cut during 

 .vinter'ud lloat the^ufested logs as soon as cut or as early n: sprmg as possible. This 

 will kill the greater P^rt of the broods _^^r^^^.^ -^ ^^^^ ^^, j^^e profitably, the 



infe£';:;Ssr;te::wn du^ll.j'wS, al^r/ie .abs, .hi-h will contain the brood, burnt 



before spring opeiis. possible to fell aud bark the infested trees during 



„intf ° S ;„;; r^ova o?';;?W* effeotrvely kills ,l,e broods of the .pedes whose 

 wintei. iae simple c . , , |^pt\veen the bark and the wood surfaie. The 



grubs work rn ^I'^'^X" of the grate middle layers of bark renders burning 



preance ot the 8"™''' ™3 ?' J ,w8"„,l,,,aks involving the Western Pine Bark-beetle. 

 ?„;,rofo;:X"L; sfbe^l l°il do.rg'the penod between the .first of Noventber and 



^\£-if i^^S'i^^iiSf ti'r!S^ftl;:^Sr ™StSu^l^ ESyas,.. a., nee^ 



L^frnleYrin^beerta^^^^^^ 



':i;ed"f™,;! ^S'^^.r S\ie standing inksted trees to effect partial control. 



CO-OPEEATION A yECESSIIi: 

 This control work has reference solely to the freshly-infested trees, ivith green, yellowish 



,-£S^b^,s°'x,?tv?irs,f^:?s-rSa,siit^^^^ 



-^ri^:;Sc;'srs;:tie:hpi ..r^: ]^ti;^;,,f«.d tr.^ 



*:ItSieH,r'Jjrf S'tS" Du'liron-T^nllirotgy^ K^p:;.:;".-. ^^- ^'<^f ^ 

 charge from tSe Chief of the Publications Branch, Department ot Agncnitnre, Ottawa, 



°°St is hoped that as soon as the lumber trade of the »f V-<'™;"f ;ftrb™*thS"'s"^°w 

 the outbreaks is earnestly requested. 



The Western Pine Bark-beetle. {Dendroctonv^ hreviconiis Lee.) Greatly enlarged. 



