2 78 



TJie Canadian Horticulturist. 



white, a kidnev-shaped white spot our enemies, and must be destroyed. 

 about the middle of each wing, Its large size, however, gives us so 



1 iG 71 - Cecropia Moth. 



and other unmistakeable marks, great an advantage over it, that there 

 But with all its beauty, it is one of is Httle fear of its becoming a pest. 



SPRAYING PLUMS WITH ARSENITES. 



AT the meeting of the American 

 Association for the Advance- 

 ment of Science, held at Toronto dur- 

 ing the last week in August, this 

 subject was taken up by Prof. A. J. 

 Cook. He said : — 



The arsenites and carbolized 

 plaster will protect against the plum 

 curculio if they can be kept on 

 the tree or fruit. But in case of 

 very frequent rains the jarring meth- 

 od will not only be cheaper, but 

 much more effective. Again, as our 

 wild fruits are more cleared away we 



must have plums in our orchards to 

 protect the apples from the curculio. 

 When apples are seriously stung 

 they become so gnarled and deform- 

 ed as to be worthless. It will pay, 

 then, to set plum trees near by or 

 among the apple trees. Then we 

 will escape mischief among our ap- 

 ples from the curculio, and will only 

 need to spray our apples once, to 

 destroy the codling moth, and can 

 treat the plum trees three or four 

 times with Paris green or carbolated 

 lime in case we have only occasional 



