AGRICULTURAL APriU)PRIATION BILI^ 1U24. 



145 



faotorily for u lirst-yoar operation, ami I am drlihrraU'ly coii.serva- 

 tivc in my expression on that. 



Mr. Anukkson. Where lias tliere heen sullieient eraili<'ation in any 

 locality to demonstrate that the eradieation when it is (•on>[)leted 

 n'ally docs do the business < 



Doctor Tayi-ou. In several of the New lOnj^laiul and northeastern 

 New ^'ork localities, where the eradication W(»rk was done in areas 

 of considerai)lc si/e. as mnch as live years aj^o, so tlmt there has 

 hcen time for new infe<'tions if n»'W infections wer<' ^^oin;; lo «trcur. 

 TIm" infections that are foun<l in those localities are practically all 

 infections that you can dehnitely mark as having occurred in 1*.>1/) 

 or ntUi or 1917. as delcrnuned hy the i^rowtii of the tree since that 

 infection occurred. Of ((MU'se, if the disease could spread from one 

 pine tree to another |)ine tree, the mere fact of an infection hein^ 

 there would negative the advisahility of such work, hut with the 

 ciirnint-i and «;ooseherries out, no infection o<-curs later, and that 

 initial infection, unless too severe, does not ji'opardi/e the future 

 timher value of the tree. 



Mr. Anukkson. \Miere you have them cut these f^ooseherries and 

 currant hushes out. is that the end of it; do they volunteer^ 



Doctor 'P.VYi.oH. A second comhiiif^ of the area will pnthahly ho 

 necessary 5 to 10 years later to uproot the very few hushes that were 

 missed in the initial eradication, and the occasional hird-sown seed- 

 linijs that may come in. The reinspection live years after of those 

 early eradicated areas, however, iliscloses a surprisinnrly small numher 

 of hushes needinii;; to come out. Of course, it all depends on the 

 thorou<j;hness witli which the initial eradication work is done. 



Mr. Br( iiANAN. You dm them up by the roots ^ 



Doctor Taylor. Yes; tne\' have to come out. The small ones in 

 the looser soils are pulled out hy hand. In clay soils they require 

 f;rul)hin<r. and in some areas of swamp land some species of the wild 

 currants are so thickly present that it pretty nearly requires the 

 denudiiifj of small areas to «]jet them all. 



Mr. Anderson. What are you doinfi; in the Puget Sound area < 

 Is the work being conducted there in the same way i 



CONDUCT OF CONTROL WOKK IN' I'UOET SOUND .\RKA. 



Doctor Taylok. Not exactly. Doctor Kellerman had a ijlimpse 

 of that this summer. I think his observation would be helpiul. 



Doctor Kkllkr.max. Mr. Chairman, the work in Puget Sound region 

 has been confined almost entirely to inspection work, the number of 

 findings of disease ijiside of the rnited States being relatively small, 

 the presence of the disease in the Puget Sound region, rather than 

 the amount of it, having been the disturbing factor. At the j)resent 

 time it is clear that the disease has been in British Columbia for a 

 considerable term of years. It does not apj)ear that the disease has 

 been in the State of Washington for a period anything like as long 

 as in British Columbia, probably not earlier than in 11)17, as far as 

 Washington State is concerned, and only three disejused trees in- 

 fected lis early as that have been found. The infections, chiefly on 

 currant bushes, have all been found on the edge of Puget Sound or 

 on the coast. 



