240 Bulletin 17fi. 



Ordinary soap and loliale oil soap (p. 223), even two applications, 

 offered little or no protection. The addition of Paris green to a 

 soap wash will not increase its effectiveness, and it may injure the 

 trees. Carholic acid soaps or the Shaker wash (p. 224) would afford 

 no more protection than ordinary soaps, we think. 



Whitevjash or whitewash and linseed oil washes (p. 225) were 

 wholly ineffectual in our experiments. We doubt if whitewash 

 and glue, or Bordeaux mixture have better preventive qualities. 



By making two applications the same season of UaWs celebrated 

 wash (p. 225) we succeeded in keeping out from one-tliird to one- 

 half of the borers. This wash will not remain intact long enough 

 in New York State, hence it is of little value unless applied twice, 

 which makes it too expensive a process. We cannot see how Sted- 

 man^s (p. 226) or other variations of Hale's wash could afford any 

 greater protection from the borers. 



Two applications the same season of a lime, salt and suljyhur 

 wash (p. 227) and a resi^i wash (p. 227) gave little encouraging 

 results to peach-growers. 



A Paris green and glue wash (p. 228) killed our trees in a few 

 weeks. 



White xyaint (p. 228) proves to be quite an effective wash, keep- 

 ing out from one-half to five-sixths of the borers, but it may injure 

 young trees, and we doubt its proving as effectual on old trees. 



Wliite paint and Paris green or green paint (p. 229) is quite an 

 effectual wash l)ut it seriously injured our young trees, and is there- 

 fore not to be generally recommended. 



The Hydrwulic cement v)asJt (p. 230) which has recently attracted 

 considerable attention, makes an ideal coating over the bark, but we 

 did not succeed in keeping out any borers with it, thus shattering 

 another tlieoretical ideal. 



Printer''s ink (p. 231), although it apparently kept out nearly 

 one-half of the borers, injured our trees, and thus cannot be 

 recommended. 



Raupenleim (p. 232) dendrolene (p. 232), kept out all of the bor- 

 ers, but killed all the trees. See figure 5(). 



Pine tar (p. 234) kept but a few borers out of our trees. 



Gas tar (p. 235) proved to be the best application we tested. We 



