No. 4.] FRUIT GROWING. 91 



His ornamental trees, his conifers and his deciduous trees, 

 are bountifully fed. You cannot find such foliage anywhere 

 else. In order to produce good fruit of any kind, you must 

 be liberal in your application of manure. 



QuESTiox. I woidd like to ask Mr. Hale if his peach 

 trees have been aftected with the yellows, and, if so, what 

 he does to them or with them ? 



Mr. Hale. We occasionally have a case of yellows, but 

 we have had but little of it. Where we have put on a 

 liberal supply of fertilizers, such as I have indicated, we 

 have found but few traces of the yellows. Wherever we 

 have had it of late years, — perhaps largely out of respect to 

 the opinion of others, rather than our own belief, — we have 

 pulled the trees up and cast them into the fire. Some years 

 ago, instead of pulling them up at once, we pruned them 

 more severely than eVer, increased the quantity of potash, 

 and stimulated a quick, new growth of the trees by giving 

 an abundance of nitrate of soda to those that prematurely 

 ripened their fruit or had any other trace of yellows. Those 

 trees have since borne good crops, lived a few years, l)ut 

 finally died. Now we dig up trees that are attacked with 

 the vellows, and burn them at once. 



Professor Roberts. What per cent of your trees have 

 been attacked by the yellows? 



Mr. Hale. About five per cent. 



Professor Roberts. In the peach district of Michigan, 

 since they have adopted the heroic treatment, they find that 

 they can easily keep the yellows down to two per cent of 

 the trees, if they take out the trees which are aftected 

 quickly. 



Mr. Hale. To show how the disease spreads, I will state 

 that two years ago I saw one tree in our orchard that had 

 indications of the yellows. That tree was pulled out. None 

 of the trees around it were apparently aftected. Last year 

 the trees all a1)out it — that is, the four adjoining trees to 

 where that one had been pulled out — showed the yellows, 

 and we pulled those four diseased trees out, and then we 

 pulled out some ten or twelve more. I think there were 

 eighteen trees taken out in all. This year there were still 

 traces of the yellows right around the border where those 



