88 NEW YORK STATE MUSEUM 



water and 2 quarts of sediment remained. It was applied April i 

 to 18 trees in the apple orchard of Mr McCoun at Oyster Bay. 

 The emulsion was driven through a force pump for five minutes 

 previous to application. An examination April 15 showed that 

 the trees were slightly sprinkled with lime and that many scale 

 insects were alive, some twigs were missed and there was some 

 washing or else a rather uneven application. July 11 there was 

 very little breeding on the first two trees though on the fourth 

 there were large numbers of young. September 26 the scale was 

 breeding in very large numbers on a number of the trees. This 

 mixture is a difficult one to prepare and our experience with it was 

 certainly not very satisfactory. 



General observations 



A general observation of the lime-sulfur washes April 15 showed 

 that most of them adhered well even to the smaller apple twigs 

 where the application had been thorough. There was very little 

 evidence of washing. The general results on the experimental 

 trees in the Washingtonville orchard July 13, and also at Oyster 

 Bay were very satisfactory considering the conditions under which 

 the applications were made. This judgment was further substan- 

 tiated by the trees sprayed by Mr Shons. The latter were prac- 

 tically clean, while the fruit on those he had been unable to treat 

 was well spotted with scale insects and a great many young were 

 to be found on the branches. The same condition obtained Sep- 

 tember 28. There was only a small amount of breeding on the 

 sprayed trees except here and there where a portion of a limb had 

 been skipped. 



Spring applications with lime-sulfur washes in 1905 have been 

 uniformly successful so far as our observations go. The general 

 cooperative work at Glen Cove and vicinity showed that most of 

 the treated trees were almost free from scale, though some of the 

 worst infested ones bore a few living insects. Only occasionally 

 was the pest abundant and then it was limited to a few limbs, evi- 

 dently skipped. The results on peartrees were fully as satisfactory 

 as those on apple, and in June the scale was well controlled on 

 plum. The few instances where the pest was somewhat abundant 

 on sprayed trees could easily be explained by the rough character 

 of the bark protecting some of the insects. This is particularly 

 gratifying when it is remembered that the work was pushed when- 

 ever conditions made spraying at all possible because of the large 

 number of trees needing treatment. 



