PRACTICAL RESULTS FROM SPRAYING, \(f] 



In conclusion I am glad to be able to declare that the labor and 

 expense that has been devoted by me during the past few years to 

 a thorough spraying of the orchard and vineyard has paid fully 

 as well as any other work performed, and with this assurance and 

 fully believing that what it has accomplished for me it will do for 

 others under like conditions, I leave the question with you, with 

 this one earnest entreaty : Let us all spray ! 



Mr. C. H. True: I wish to say that the method referred to in 

 my paper is different from that mentioned in the paper read by the 

 gentleman on the subject of the apple orchard in July and August. 

 He mentions another method of keping down injurious insect 

 pests in our orchards, and that is, by pasturing swine and shoats 

 in the orchard. I have a nearby neighbor whose father was an 

 early settler in the county. He set out an orchard of 350 trees. 

 He is not in the nursery business but manages the orchard of his 

 father. They have practiced for more than twenty years putting 

 the swine in their orchard. This past season I went through their 

 orchard. They have obtained perfect apples. It is a method we 

 can all use, and it will insure us apples free from worms and fung- 

 ous diseases, such as scab and other diseases. I went through that 

 orchard, and I found it equal to the best sprayed orchard I ever 

 saw. I have not got a pig of my own, and usually the commercial 

 orchardist does not keep swine, so we must in such cases resort to 

 the best method we have, which is spraying. 



Mr. Geo. J. Kellogg (Wis.) : How much can you head off 

 the curculio, both the apple and plum, by spraying? What percent! 

 can you save? 



Mr. True : I don't know that I can definitely answer that ques- 

 tion, but I would say to a very great extent. I think we can get at 

 ^ least seventy-five percent of perfect apples by thorough spraying. 

 I do not say that it is a success altogether, but it is a great aid. 



Mr. Kellogg: How about plums? 



Mr. True : Well, I have used dust spray this past season in 

 spraying my plums. I have used dust spray on my plum trees 

 with good results. My plum trees were not afifected by curculio 

 to a great extent. In certain seasons these insects are much worse 

 than in others, but I think spraying tends to prevent the depreda- 

 tion of the curculio to a considerable extent. 



Mr. Kellogg : How do you like that tobacco infusion ? I have 

 used it in checking the plum aphis for several years. 



Mr. True : I prepare it according to the following formula : I 

 take a quarter of a pound of tobacco stems, heat a pail of water 

 to the boiling point and pour it on the stems and let it stand until 

 it cools. Then I take a quarter pound of whale oil soap — and I 

 understand that is an insecticide of itself — by weight and dissolve 

 it in the water and add the two together ; that gives you the mix- 

 ture. I apply the mixture with a sprayer. 



Prof. R. A. Emerson (Neb.) : Did you ever try using the soap 

 alone without the tobacco stems ? 



Mr. True : No, I have never tried that. 



Prof. Emerson: By using the soap alone dissolved in water 

 we can kill the black aphis. 



