140 NEW YORK STATE MUSEUM 



An examination of the treated trees May 6 showed that the 

 signs so visible on the previous inspection had nearly disap- 

 peared. The onlj^ indication of the presence of the insecticide 

 was a somewhat bluish color, except in the case of one or two 

 trees, where the lime, salt and sulfur solution appeared to have 

 lodged in masses and gave the trunk a somewhat speckled 

 condition. Tree 4 produced a large number of flowers [pi. 4J, and 

 95 had a very fair bloom. 



An examination of a few trees June 20 showed that there 

 were many living young on the underside of the limbs of tree 

 14. There were some living scales to be found in some positions 

 on tree 13, and living females were abundant on the underside of 

 the limbs of tree 12. 



A detailed examination of the trees was made July 5 with 

 the following results. There were few or no young on trees 4, 

 5, 6, 8, 31, 50, 55, 50, 57, 58, 70, 90, 97, 98, 99; there were few 

 young on trees 10, 13, 32, 33, 49, 51, 59, 92; young were rather 

 few on trees 29, 30, 52, 77 and 100; they were rather abundant 

 on trees 7, 11, 14, 53, 78, 95; and they were very abundant on 

 tree 12. 



Examination of these trees Nov. 6 by my assistant, Mr Walker, 

 led him to rate them as follows. He found live females and 

 young on trees 4 and 5 and dead young on number 6; numbers 

 7- 14 inclusive were in very bad condition; the same was true of 

 29-33 and of 49-53, 55-59, 70-78 and 95-98. The status of tree 54 

 was doubtful, and 93 and 94 had been removed. No living scale 

 was found on tree 92. 



This is quite different from the other end of the orchard, 

 and it was so marked that it was comparatively easy to 

 distinguish between those treated with the lime, salt and 

 sulfur and those with crude petroleum, simply by the number 

 of scale insects on them. It should be pointed out however 

 that this test was an unusually severe one; and, while these facts 

 tend to throw considerable doubt on the value of this material, 

 they do not condemn it. It is possible that the lime, salt and 

 sulfur mixture will prove to be one of our most valuable methods 

 of controlling this scale insect, since Mr L. L. Morrell, of Kinder- 

 hook, who used the material under the writer's directions, 

 obtained most satisfactory results, and reports from others have 



