No. 4.] FRUIT GROWING. 179 



Ions of the sulphate of copper mixture ; l)ut remember, too, 

 as the Doctor was very particular al^out stating that, a 

 teaspoon evened off, not heaped. That is what he called a 

 teaspoonful. 



One word in regard to the plum. Reference has been 

 made to the Japan i)lum and its value. This is a matter of 

 my own experience. I have three or four varieties, some 

 trees that I planted a year ago last spring. I had a very 

 good crop of plums from them. The curculio has no effect 

 whatever upon them. It punctures the fruit and deposits its 

 egg, but there is an acid in the fruit, and that, I suppose, 

 prevents the hatching of the egg. 



Secretary Sessions. I want to say just a word. Dr. 

 Fisher's name has been mentioned here. He gave us a paper 

 upon orchard management four years ago ;* also an account 

 of his practice in spraying will be found, if you look for it, 

 in the report of 189 l.f 



Mr. Stetson. I would like to ask Mr. Wood if he does 

 not think the Roxbury Russet is more liable to be attacked 

 by the codling moth than other varieties of apples ? It is so 

 with me. 



Mr. Wood. I presume Mr. Stetson has in mind the fact 

 that the Roxbury Russet bears more on the off year than any 

 other variety, and on the off" year there are more moths in 

 proportion to the apples than in an abundant year. I think 

 if 3"ou will examine them when you have an abundant crop 

 of apples you will find the Russet will average fairly with 

 the others. 



Mr. Stetsox. It does not make any difference with me. 



Mr. Wood. You know the Roxbury Russet does not bear 

 so heavy a crop as the Baldwin and Greening varieties, but 

 it will bear more on the off year. You will get some apples 

 every year from them. Of course, as I said before, they are 

 not as fair unless there is some spraying preparation for pre- 

 venting the insects from doing their work, which they are 

 sure to get in, but I do not know that there is. any difference 

 about their being more susceptible to the work of the insects » 

 I never heard it mentioned. 



Question. When is the best time to trim a tree? 



* " Agriculture of Massachusetts," 1889, p. 11. f Ibid., 1891, p. 148. 



