138 NEW YORK STATE MUSEUM 



siderable foliage dropped from parts where it was thickest and 

 evaporation presumably much slower. This was particularly 

 true where the 25^ emulsion was freely used. 



Good's whale oil soap no. 3. About 35 peachtrees in the old 

 peach orchard at Warwick were sprayed with this substance, 

 using 2 pounds to the gallon. The application was made on 

 Mar. 24 and 25, and the weather was bright and sunny, and 

 there was practically no breeze while the spraying was in prog- 

 ress. No rain fell till Friday afternoon, the 28th, when it com- 

 menced to drizzle, and it poured during the night. 



An examination of these trees July 8 showed that there were 

 very few living young on those near the northern end of the 

 orchard. There were perhaps a few more scale insects than 

 on those treated with the lime, salt and sulfur mixture. The 

 setting of the fruit was apparently unaffected by the application. 

 A number of young trees in the young orchard on the hill, 

 sprayed by Mr Williams with this substance, using II/4 pounds 

 to the gallon, had a few scales, while many were perfectly free. 

 The application was hardly as effective as the crude petroleum. 

 Some unsprayed trees on the eastern side of this small orchard 

 had from a few to many scales, while there were very few or 

 ncme on most. It should be stated that the San Jos6 scale does 

 not appear to have thriven in the orchards where the experi- 

 ments were conducted, and consequently the results are not so 

 decisive as might be wished. 



An examination Nov. 24 failed to give anything decisive in 

 the old orchard, where conditions, so far as experimental work 

 was concerned, were far from satisfactory. The trees, generally 

 speaking, were in better shape than those sprayed with the crude 

 petroleum, and in nearly as good condition as those treated with 

 lime, salt and sulfur. The most marked results were observed 

 in the young orchard on the hill, where a large number of the 

 trees, as previously stated, were sprayed last spring with li/4 

 pounds of soap per gallon. These trees were not, generally 

 speaking, as free from the scale as the young trees which had 

 been sprayed with the mechanical crude petroleum emulsion, 

 but none of them were seriously infested, and a great many were 

 comparatively free from living insects. There was a striking 

 difference to be observed between these and others which were 



