32 



MR. LYONS. Yes. 



DR. WHETZEL. Yes. But the first is very much less 

 essential than the second. That is to say, you can control 

 the apple scabs to within two or three per cent without mak- 

 ing any effort to destroy the leaves. Here, is a point that 

 you must not forget : If you spray the trees thoroughly 

 every year, leaving such a large percentage of green leaves 

 that have no fungus on them, they won't need to be burned 

 or plowed under or tinkered with in any way. The only 

 man who is justified in spending much time or money in de- 

 stroying the leaves is the man who has neglected his orchard 

 and has an exceptionally scabby crop of leaves to go on the 

 ground in the fall. Generally speaking, if everyone of you 

 apple growers would spray every year the question of what 

 you are going to do with the leaves would not be a ques- 

 tion for you. That is, if the foliage is clean it doesn't mat- 

 ter. 



MR. WILSON. I understood. Doctor, that about five 

 minutes was an average time for the average size tree, and 

 about six gallons. 



DR. WHETZEL. I said five minutes was the minimum 

 time for a tree of thirty or forty years. That is not an ex- 

 ceptionally large tree. And I said that six gallons was the 

 minimum solution. Now, ten gallons is better. It takes 

 approximately as much for the dormant spray as for those 

 later sprays, because so much mixture is lost. You have to 

 put more in the tree to get it covered, so that when the trees 

 are in foliage you will actually get more solution on in a 

 given time than you will when they are dormant. There 

 sre many trees in the State of New York that six gallons 

 wouldn't begin to spray. It takes ten or fifteen, even twen- 

 ty. I know a grower who puts on fifteen to twenty per 

 tree, and the trees don't drip. They are large trees. It all 

 depends on the size. I was merely giving you something to 

 go by. 



It might be of interest for you to consider this, also: 

 We found our Fruit Growers' Association wanted to know 



