rKori:i:inM;s. IDKJ. Co 



'I'he Silk.i S|inici' r.,ii-k hcrl Ir I Ih inlKirluiins o/,( xhv M.-iniili 1 .— In Hli:!. ;ili(iul, 

 tlic iiiar;,'iii .>f r.caxcr Lake. Ilinv lar,:.'c spnin-tnTs were li.nnd li> l)c allarkcd liy 

 lliis hectic: the spiairc in tliis i-iv^'i..n liad alrcaily liccu siTi.iiisl.\ uiakciicd l,\' tlnnd^ 

 ill-, cniiscqnciit ■ni the raisin;; nt llic level ol' the lake, as well as hy llie .alta<-ks (d' 

 clirniicx riinh'iii. l''.i M iiu-.i lile r. imlitioiis for the exteiisiM- spread ni' iliis desi niei ive 



sjieeics llllls (ilil.lilleil, I'.y llic early ,Slllllllier of 101.") tlie lilllillier III' alTeetcd trees ill 

 the vieiiiily of Die lake liad increased tn tliirtecii : and in c.iiisc(|ue]ice of Iliis fact 

 a siir\cy ni' tlie whole ii.iil^ was made to eiidc.i\dnr lo loiale any oilier ceiilrcs of 

 iiifeclion. Two olhcr u'ronps were loc.ate(l in w idcl.\ sei.araled parls of llic |iark, one 

 id' nine trees and aiiolhcr of live. All Ihe iiileslcd trees wi'rc marked lor removal 

 in the spring' of i:il.',, whii-li was larL'cly doni", llic sliiinps heiiiL' eoniplcicl\^ larki^d 

 to iirevciit their siihsei|iienl use as lirecdin^'-plai-cs, A Inrlher si'areli in.aile diirim.' 

 tlic Slimmer of I'.iir, oiil,\- resulted in the liiidim: ot a few I recs. some of which had 



1 11 omillcd ill I'.ll I owiii.u' lo their hciiii; in use as lelcphonc-iioles : these have liecn 



marked for removal Iliis s|iriii,:.'. 



Titi; Wi:sTia!.\ IIkmi.ock i'/'siiim hrtiroiiliiilhn. 



Over a lar,i;e area of the jiark the wcslcrn hcmloi'k coiiKlilutcs llic principal 

 species; Ihis tree has liecii liadly al lacked and in iilaccs eiiritvly killed .ml liy a 

 defoli.iliiiL; Ccomcliid . .ilcrpil la r of ilii' ;.'eiiiis '111, rind. The moths were in .i;reat 

 ahiliid.ini c- diirin:; Ihe l.ill of l'.!!:!, hiil in I'.lld cvidi'iii-cs went to show th.at jiarasites 

 and pred.ilors li.ail ohlained control over the pesl. h.ardly aii,\- mollis lieiii;.' seen diirim: 

 Ihe Slimmer of P.il,",, liy Iliis time the ilama^'c done w.is irrcpa ralile o\ er a con- 

 siderahle area, and ill olhcr jilaccs the 1 rees were liLdiliii^' an ii|iliili haltle. with 

 sadly Ihiniied lolia;.'e. a^'ainsl II Ifecis of the jircN ions ,\car's altaik. 



The western hemlock harkdieetle is also cslalilislied in the alTccti'd trees and is 

 known to he a destructive species. 



Dipterous Ma^K<it in liark of Hemlock. — The ]iresi>nce of a dipleroiis nia^-ol of 

 the ,i.'eniis Cliiihjsia. prohalil.\' the species C. iil(f<l.;'iixis ('o,|.. family Syrpliidie. was 

 foiinil r.airly comniiml.x in the fark of Ihe weslern li(anloi-l; in Ihe jiark. This insect 

 canscs the injnry known to the lumhernian as " hla<-k die. k," and lis jiresi'iice may 

 he detected liy the pitch-tubes of resin which collect al the point of ait.nk. -\lr, 

 II. !•;. BurUe, of the I.'nited Slates Hure.-ui of Knlomol.r.'y. in a pap. a- on - I'.la.'k 

 Check iu Western Hemlock." I'ir.ailar .X... Ul, I'nii.'.l .si.it.s I i.'parl niciit of .\^ri- 

 ciilture. Bureau of Entomolo^'y. l!iu."), slates Ih.al 111.' injiir,\' is .In.' primarily lo tli.' 

 w.irk of the harkdieelle of the w.-slerii h.'inl.uk { II iihsiniis .s/,.i. whi.li c.x.aval.'s 

 fo.id-titnnels in tlicsi' pl.a.-es. ^'iviiii: tlii' y.iiiim iiiaL'uols a starl in.^'-LCi'oiin.l f.ir tli.ar 

 w.irk. This iiise.-t has not yet hcen exhatistivel,\' sln.li.'.l in Stanley I'ark. 



The Western Hemlock ('hermes. — In the s]iriim, ..n isolated trees in lln- |.ark, 

 ihi' close observer will notice that the folia^'i' has llie appi'arance of beini.' .-..v.'ri'il 

 with minnte ticks .>f a wliili> woolly mati'rial ; this marks ih.' ].r.'sen.-c .if the al;.i\c 



spei-i.'s. iniriii,:; tli.' lirsl .l.iys .if spriic.;. 111.' si. 'in ther. : val-shap.'il llal l.nisc. 



o.."i 111111. in li'n;;lli. ami .lark brown in .-.iloiir, willi lb.' .lorsal snrfa.'c .-.iv.M'.'.l willi 

 ■A wbili' wo.ill.N s.'.'reii.in. may be f.nin.l lo.-al.'il al llii' base .if lb.' iii'.'.ll.'s. Ii.'i- si'la- 

 ili'i'ply Slink in the tissues. 



Oviposition coinnieiici's al .ml this liiii.', th.' .N.ninir h.-ilcbiii^ in six or s.'\-eii .lays. 

 The .■.inijilete life-cycle of this s|i.'.i.'S has iiol yet b.'i-n .■slablisbc.i. .Mlh.in-h ii|i to 

 the present Ihis siicics has ii.il pr.iv.'.l ^'.■nerally d.'slrncl i\ .•. al Icasi Iw.i lar^'.' 

 liemloi'k-lrc.'s li.ive bi'i'ii kill.'il as a r.'siill of ils alla.ks, while oth.'rs arc in a serious 

 . -.111.111!.. II ; 111.' ..1.1 n.'.'.ll.'s ari' alfi.li'd and f.ill .iff .liiriii;; the early summer, leaviii.^' 

 Ilu' Ire.' |iarliall\ .l.'l.il iai.'.l. Th,' larxa' and imp:.' ..f Syrjihus tiies and ( 'oi-cinellid 

 bci'tlcs luivi- b.'.'ii foiin.l in c.insi.l.-rabb' niimb.'i's pr.'yin;; on the yonn,^ in Ihe spring, 

 ami it is p.issible llial lli.'se iii.-iy pro\.' to bi' an .'Ib.i.'iil natural means of control. 



Tin: l>.ii.,i.AS l''ii! t l'.\iiiiliil\iiii(i iiiiirrdiiiila) . 

 The Douglas tir has .m lb.' wli.ib' ri'iiiainc.l bealth.v: it is consi.l.'r.'d lb.' 

 healthiest species of .•.mifcr in Ih.- I'roviiii-i'. 



