No. 4.] FRUIT GROWING. 163 



in upwards of twenty-six thousand of water, — more than 

 thirty-eight times the strength incompatible with fungous 

 life when immersed in it. It is altogether probable that a 

 much weaker solution would answer every purpose, but that 

 is a matter for future experiment to determine. 



I have not had an opportunity to make use of this solution 

 upon all kinds of foliage, as I could have wished, and more 

 especially in its younger and tenderer stages ; but the most 

 susceptible that I have found thus far has been that of the 

 peach. One pound to four hundred gallons will scald these 

 leaves and cause them to drop from the trees to some extent 

 in midsummer ; but at half this strength, one pound to eight 

 hundred gallons, there is no apparent injury at that season. 



The question of what fungicide to use having been settled 

 upon, it is of much importance to consider the times and 

 mode of making the applications. Perhaps the best I can 

 do is to give my own programme for 1892 as it comes to me 

 to-day, but liable to be modified by the experience of other 

 observers yet to be published. I will also include in this 

 the use of insecticides, as the treatment for insects and 

 fungi are often combined in one operation. 



The first day in the spring, when things are sufficiently 

 dry, all the dead foliage, grass, weeds and rubbish, are 

 to be collected and burned. This operation will dispose 

 of innumerable winter spores of various fungi, and also no 

 doubt the bud moth of the apple. Just before the buds 

 swell I propose to spray the trees, vines, trellises and 

 the ground underneath and around them, where the fire 

 has not run, with a solution of sulphate of copper, one 

 pound to one hundred gallons. At this time there is no 

 foliage to be injured, and the solution may be made as 

 strong as we desire ; but I think that this would be as use- 

 ful as a stronger one. After the development of the leaves, 

 but just before the blossoms open, I shall spray with the 

 copper solution one pound to eight hundred gallons, to 

 which will be added Paris green in the proportion of one 

 pound to two hundred gallons. The two substances may 

 be used together, as there is nothing incompatible between 

 them, and they do not interfere with each other in any way. 

 Immediately after the bloom, even before the last petals 



