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 11. K. V. g- g. 7(» Bovlsod .Tnmirtry 1, \Q[i3 
 
 United States Department of Agriculture 
 
 BUREAU OF ENTOMOLOGY AND PLANT (U AHAXTINE 
 
 DUTCH ELM DISEASE QUARANTINE 
 NOTICE OF QUARANTINE NO. 70 
 
 INTRODUCTORY NOTE 
 
 Provision was oriirinally iiiado in this ciuaiantint' l\»r llio inii>ortation from 
 Europe of elm veneer l(»^'s if free from bark and wood-infesting insects, and 
 with a i)resi'ril)ed hot-water treatment required before release. It has been 
 found, however, that the complete removal of all vestig^es of bark, which alone 
 would eliminate both adult and larval stapes of the scolytid beetles known to 
 be instrumental in spreading the Dutch elm disease, has not been effectively 
 accomplished in the majority of shipments presented for entry under this pro- 
 vision. Both adult and larval stages of scolytids have been found in bark 
 remnants on these elm burl logs, even where bark removal evidently had been 
 attempted before shipment. Under these circumstances it seems hopeless to 
 expect a bark removal complete enouixh to eliminate these carrier insects from 
 the deep crevices of gnarled and twisted burls, and since the presence of such 
 insects in any stajre, in any number, at any iH)rt, is regarded as involving a 
 definite danger of further introduction of the Dutch elm disease, this quaran- 
 tine has been revised to exclude all elm veneer logs from European sources. 
 
 Le:e a. Stroxg, 
 Chief, Bureau of Eutomolouy and Plant Quarantine. 
 
 NOTICE OF QUARANTINE NO. 70 ON ACCOUNT OF THE DUTCH 
 ELiM DISEASE (REVISED) 
 
 (.\pproved Dec. 20, 1934; effective Jan. 1. 19:55) 
 
 Having found that an injurious plant disease, known as the Dutch elm dis- 
 ease, due to the fungus Graphiuni uhni Schwarz, not beretofore widely preva- 
 lent or distributed within and tlirougbout the United States, exists in various 
 countries of the Continent ot Europe, I, Henry A. Wallace. Secretary of Agri- 
 < ultuie. pursuant to the provisions of the Plant Quarantine Act of August liO. 
 I'.nj (:n Stat. 31i>), as amended, have determined that it is necessary to pro- 
 hibit or restrict the importation into the United States from the Continent 
 of Europe of certain idants and plant produ ts hereinafter specified, in order 
 to prevent the introduction into tl»e United States of said disease. 
 
 Now. tluTefore. by virtue of the said Plant Quarantine Act. the public bear- 
 ing required tb»'roby haviiiir Im'cii duly beld. notice is iKMcby given as f<»llows: 
 The im|M»rtati<Mi into the United States from the Continent of Kuropo of the 
 following articles is prohibited: (a) Seeds, leaves, plants, cuttings, and scions 
 Mf elm and relate<l plants; (/;) logs of elm and related plants; (e) lumber, 
 limber, or veneer of such plants if bark is present on them; {<l) crates, Ixixes. 
 iKirrels, i)acking ca.ses ami other containers, and other articles manufactured 
 in whole or in part of the wood of elm or related plants, if the elm wood or 
 wofxl (jf related plants is not free from bark. 
 
 1051>66— 35 
 
UNIVERSITY OF FLORIDA 
 
 3 1262 08721 5777 
 
 Ixct'i.ti-'i'- »<» li't- wlH.ve |.ri.lul)iti*)iis m.iy Ue ;ilith..|-ize.l for tMitry under 
 hiM-niit uikUt su.-b c-ou<liti(.iis and rcuulaticiis as the Secretary of Agriculture 
 may liix-cribe. .)r xvlien the i.articuhir article or material has been or is to be 
 so treate.l prepared, or processed that, in the judj^nient of the Secretary of 
 \jrricultnre, its unrestricted entry involves no risk of i)est introduction. 
 ' 'Jlk> expreM.'li "elm or related plants", as used herein, means plants of all 
 >.pecios 'Kini\ iieiiera ..I the family I'lmaceae. including: the livmn-a Imu.s, Cclfis, 
 Zclkova, A,n,H'luccriL Aphamiuthc. liarbryn, CfmctarhHC, Chaetontelea, Giron- 
 Hicni, Iloloiltcha. Lozonclla, Para.sponm, Phyllo.tylon, Planera, PterocelUs, 
 Troina, and all si>ecies thereof. 
 
 This notice of qnaiantine revises and supersedes Notice ot Quarantine No. 70, 
 (•a-ective October 21, liKW, and shall be effective on and after Jaixuary 1, 193o. 
 (ll((tnc ^^i.^^^ ^^^ ^^^^ ^_^^ ^^^ Washiiijrton this -JOth day of December 
 
 Witness my hand and the seal of the United States Depart- 
 ment of Agri.ulture. 
 
 H. A. Wallace, 
 Secretary of Agrkyulturc. 
 
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