216 



BULLETIX 176. 



ton cloth with tar but it is doubtful if this would suifieiontlj iucrease 

 its effectiveness to warrant the expense. In 182'i, Harris recom- 

 mended u sheathing paper handage^ and the more expensive clotii 

 bandages liave since received little attention ; paper had been used 

 without success as eaily a.s 1806 by Peters. Various kinds of 

 paper bandages have been suggested, such as old neivsjxn^ers, heavy 

 Manila or roofing imp>er^ and tarred paper j Bateman used the 

 latter quite successfully in 1871. 



Tarred paper. — We tested the ordinary tarred siding paper for 

 three years with the following results : 



1894-1895. 



June 8, 189 



July 11, 1896... 

 July 13, 1890... 



21 



1895-1896. 



June 5, 1896. . . 1 

 June 11, 1896. . . 

 June 12, 1896. . . \ 



3(14^) 



None. 



1896-1897. 



me, 22, 23, 25, ] \ 1A/q^</^ 

 28, 1897 s\ ^"^'^^^^ 



.June 



None. 



Years. 



Untreated or cbeclc trees. 



1894-1895 



1895-1896. 



1896-1897. 



128 I Same dates I 60(47 ;,) 



128 " I 68(53'/) 



128 I •' 75(58;;) 



From this tal)ulai' statement we learn that while from 14 to 40 per 

 cent of the treated trees were infested, yet the pa])ei" evidently kept 

 out from \ to |- of the borers, as compared with the untreated trees. 

 Thi.-; is a very good showing for the tarred pa))er l)andage. 



We used pieces of paper large enough so that they usually went 

 around the ti-ee twice and extended from tlie 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 



