riiocEEiiiMis, i'.ik;. 87 



Ill ;is Diiirdiis /(/;m. Tliis iiisi'ct was di'lcriiiiiKMl fur us liy .\!r. (liraiill. ul' Ilic 



riiifr<l States Naliiiiial .Miisciiiii. as ■■ ncaf I'arli iiik iiidii." 'I'liis small i.'r(>(Mi IIviikmi- 

 opiri-'iii lays its i-^i: ■■II llic vc'iilial siilr (if the ■iraimf-c^iNnirril Did i< ills lai-\a. Fniiii 

 it lial^-lii'S a uliiti' liv|"'i'pai-asit ii- unili. wiiii-li slii\\l\- in^ I'eascs in size at llic rxpciisi' 



■ il' its shriiikiiiL; liusl. till we liiiil. instcail of a larL'c ■■raii-c lar\a with a small wliitc 

 ^•nili ■111 its vciilral siilc a lai'i.'i' \\liitc lafva with a small, shriinki'ii, ■>i-ai];;r-riiNiiiri'il 

 skill nil lis MMilral si(li>. Still latiT \\-.' liiid llir |p\i|ia nr ailiilt nl' llii> liypiTiiarasili'. 

 SiiHi-. iM.w.'Wr. wr kn'il li.rly-l liiv,. Ilhrniiis a.liills K, ■■vi'iy I'luii iiiirii n,ii . tlir llirs 

 whii'h we lialclinl rn.m ■■iir parasil iznl apliiilcs were iliM-i,|,.,lly l.-ciii-ticial. 



'I'lii' i|iirsliiiii wliiili ihiw arises is: ('an \vi' aiil llirse iiarasiles in any \\a.\' 

 s\ illeiul at till' same time aiiliiiu' tlu'ir jnisl. I lie la I ilia-e aphis'.- In dry, lold lalitiides 

 we <-ertainly .,iii, I ill it must la' l.iirne i iiid that the fnl h.w in^' siiL:u'esl i^.n applies 



■ inly l.isti^-h plaivs as the Inlcriiir ■■f I'.iitisli ('nliimhia ami In tlie I'rairie I'r^.vim-cs, 

 where the (■■lil is siiHicieiit ly intense tn kill ■■IT all caliliai.'i'-i.'niwl h witli certainty 

 I efiii-e thi> spriiiL.'. 



I'arasitizi'il larva uf .l;)//i,s- hiiis 

 ovcr-wintcrinj; liarasitf'. (In natii 

 swollen and onlai^.il, i iH^-l. K. II. S. i 



.\ ■■■■ntn.l meastirc advncated in the east and to tile south of us is tliat of 

 ■ •■■lleiiin^' anil liurnin.i; all old siiim|is ami ■itlna' refuse duriug the fall and winter. 

 'I'liis is ver.\- lieneliiial sini-e it destmys iiiimennis aphis-e.ij.irs. "U'here tliere is luueli 

 snow or where the wiiiler is not sc\ere, su^-|i slumps are mil killed by the spring;, 

 and e\cn tliou;rli tli(.\- are pulled they may have eiiou-h vitality to pn>duce sullii-ielit 

 .iireeu -rowth for tlie yoiiiii; ,a]iliides that liatili Ironi tin- i-t-'^is to iii,itnre and produce 

 a winf;ed ^'eiieration. 



I'mler our condilioiis. however, such L'rowlh is impiissililc. ninl we can olilaiu 

 even heller results from a inodiliealion of tliis melhoil. The slumps .iiiil refuse must 

 lie colleiled diirin- tlii' fall or winter, and iilaced in a heap mi ail ahs^ilntely liare 

 piece of 1,-ind, at s^^me littl.. dislance from aii.\- t:ri>en u'rowlh. espei-ially aii,\ sinli 

 weeds ,is slii'| ilii'i'd's-pursi'. nntstard. or any of the plants lii>hiiit.'iii^' to the ordiu' 

 rrui-ifei'a'. since Aiiliis Innssiiir laii hreeil ■ill almost any of I liese. 



In tlie sprin.iT h.itli the p.ir.isite ailuits and the aphis-e-us halch. 'I'lie par.asites 

 are stron.ir-winned ami ran r,apidly lly to more favoiiralile locations, hut llie lender 

 will-less aphides are loo far ri'iiiovcil from any fiMiil !■! stand a cham-i' of ■ rawlini; 

 to it liefore tiiey die of sl.ir\ at imi. A few may possihly he hhiwii or carried l.y hirds 

 !■! smiii' cni.iferons pl,-iiit, hut this iiiimlna- iiiiisl 1 e very small, wlua-eas iiiiiiiiiH-r.Mhle 

 parasih's are (■■ml inu.all\ esi-.apiiiL'. 



