142 NEW YORK STATE MUSEUM 



side of the trunks and also on the underside of the larger 

 branches. The condition of these trees was nearly as satisfactory 

 as those of the experimental row sprayed by the writer. 



A large number of trees below the experimental rows were also 

 sprayed later with the lime, salt and sulfur mixture, which had 

 been boiled till the amber color was very apparent, and the appli- 

 cation was fully as thorough, according to the statement of the 

 owner. A considerably larger number of living scale insects 

 occurred on these lower rows, which may possibly be due to the 

 fact that these trees were somewhat more infested in the spring; 

 though this hardly seems an adequate explanation for the 

 difference. 



The extended breeding period of the San Jose scale was strik- 

 ingly illustrated by finding a few living young and a great many 

 in the white stage at the late date of Nov. 25. All the treated 

 trees were then in a very thrifty condition and bore immense 

 numbers of fruit buds. 



Experiments at Warwick. The same mixture was applied Mar. 

 24 and 25 to some old peachtrees in the town of Warwick, Orange 

 co. The mixture was prepared according to directions given 

 above, and, owing to its not being very thick on some trees, a 

 number were resprayed the second day. The applications in both 

 instances were made on bright, rather sunshiny days, though there 

 was some wind in the afternoon. Kain commenced to fall in a 

 slight drizzle Friday afternoon, the 28th, and during the night it 

 rained very hard. An examination the following morning showed 

 that very little of the mixture had been washed off. 



An examination of these trees July 8 showed little that was 

 decisive. A few scales were living, and the same was true of 

 untreated trees, and therefore no definite conclusions could be 

 drawn. Fruit buds appeared not to have been .affected by the 

 application, and the trees did not seem to be harmed in the 

 slightest. 



An examination Nov. 24 failed to give anything decisive with 

 this material. The trees sprayed with this substance were in as 

 good condition as those treated with the crude petroleum or the 

 whale oil soap solution, but the difference was not marked enough 

 to warrant the drawing of any conclusions unless it be that the 



