216 



BtjLletix 170. 



ton cloth with tar but it is doubtful if liii.s would surficieiitly increase 

 its effectiveness to warrant the expense. In i82<), llai-ris recom- 

 mended a sJieathing paper handage^ and the more expensive clotii 

 bandages liave since received little attention ; paper had been used 

 without success as early as ISOO by Peters. Various kinds of 

 paper bandages 'have been suggested, such as old newspapers^ heavy 

 Manila or roofing paper ^ and tarred paper ; Bateman used the 

 latter quite successfully in 1871. 



Tarred p)aper. — We tested the ordinary tarred siding paper for 

 three years with the following results : 



1894-1895. 



June 8, 189 



•1 * 



July 11, 1896. 

 July 13, 1896. 



33 



1895-1896. 



June 5, 1896.. . ) 

 June 11, 1896. . . ' 

 Juno 12, 1896. . . \ 



1896-1897. 



June, 22, 23, 25, { 

 28, 1897 j 



3(14:0 



1 None. 



10(30^) 



12 



None. 



From this tabular statement we learn that while from 1-1 to 1-0 per 

 cent of the treated trees were infested, yet the paj)er evidently kept 

 out from -J to -J of the borers, as compared with the unti-eated trees. 

 This is a very good showing for the tarred pa])er bandage. 



We used pieces of pa])er large enough so that they usually went 

 around the tree twice and extended from the roots to about a foot 

 above the surface of the soil. Several of the treated trees are to 

 be seen in the first row of trees in figure 52 ; and in figure 54 is 



