The Peach-Tree Borer. 



229 



1895-1896. 



July 14, 1896. 



20 



1896-1897. 

 June 22-28, 1897. . 



11 (55^ 



12 



Slight 

 injury. 



The first year the paint was very effectual, keeping out nearly 

 |- of the borers, and doing little or no injuiy to the trees. The 

 second year it did not keep out -J of the borers, a large percentage 

 of the treated trees were infested, and the trees were noticeably 

 injured ; possibly the application was made a little late in 1896. 

 Our conclusion is that white paint makes a lasting w^ash and it will 

 doubtless keep out ^ or more of the borers, but it may injure young 

 trees ; a young orchard is said to have been completely ruined in 

 Alabama by its use (Baker, 1898). It would probably not injure old 

 trees, but we doubt if it would usually be applied thoroughly enough 

 on such trees to penetrate all the cracks and crevices which it must do 

 to be a preventive. We doubt its effectiveness when applied on old 

 trees, and would not recommend it for general use on young trees. 



We made a light green paint by stirring -J pound of Paris green 

 into 1 gallon of wdnte paint, made as described above. We thus 

 had a poisoned wash. Our results fi'om a two years' experience 

 with this green paint is shown in the following table : 



1895-1896. 



