Gl 



I'lic \»'l-v r;Ml I lull lln' li'<''' is (tf iiiiicli Lii-(';ilci- \;iliic [n ils 

 ((UNCI' iIkiii jiiiv iri'c in ihc (oifsl ((iiild Itc, iiic;iiis tli:il iiiurci 

 i;ili<»i' ;iimI iikmc cmi-c, ciii ami will lie ('.\|»('1mI('(| iijioii il, if it lUieds 

 i(, tliaii woiihl lie coiisidci-iMl possible, Iroiii aliiiosL aiiv ('(((iiomir 

 point oi' view, on either the orchard or I he woodland tice. Con- 

 HiMUKUitlv .some methods of comlialinu i he disease may he pi-olii- 

 ahly a])plie(j lo ornanienlal ti*ees thai would nol Toi- a inoiiicul \nt 

 eonsidei-ed in connection wiili a iree in tlu; forest. 



At tlie very Itegiuninj^' of the exi»erimentiil work nnderlakcn 

 hy the United State's ]>ej)artment of A<ijrienltnre, this fact was 

 recoi;nized, and lias since heen ke]*! in mind. ( 'onsiderahjc of 

 tlie experimental work has had for its main ol»ject the solving of 

 th(! problem as to whether or not it will be possible to eradicate 

 or control the disease on iii<lividual trees. 



Notwithstanding the fact that mnch of this work has been 

 done in chestnnt orchards, there are probably few oichard trees 

 that wonld be Moi-th the expense involved in an attempt to save 

 them; however, on acconnt of their smaller size and greater ac- 

 cessibility, they wonld be more prolitable for individnal treat- 

 ment than the forest tree. Conseqnently these oi-chard trees be- 

 come, in most cases, nothing more or less than (ixperimental 

 martyrs for the possible fntnre benefit of their more aestheti- 

 cally valnable ornamental kin. 



It is yet mnch too early to nndce a very deiiniie statement, cer- 

 laiidy not a linal report, ni»on the ]K)ssibilities of being able to 

 control fnlly the Chestnnt IJark Disease on ornamental trees 

 withont reconrse to the radical methods at present advocate<l 

 for controlling it in a woodland. Nevertheless, certain facts 

 have been repeatedly demonstrated in the course of the experi- 

 mental work which ajtpareutly ])oint in a very encouraging man- 

 ner to the probable ultimate accomplishment of this highly de- 

 sirable end though perhaps not on a very encouraging economic 

 basis, as snch a basis is nsnally lignred. 



I want to call your attention to some of these facts, as well as 

 to the bearing that they may have npon control work of tliis 

 general character. Bnt in order to make clear certain points I 

 mnst first refer very briefly to the general line of treatment 

 whicii is bei]ig followed in the experimental work mentioned. 



