228 STATE HORTICULTURAL SOCIETY. 



blue-stone and one pound of lime to 22 gallons of water. This mix- 

 ture was used five times and proved very decidedly beneficial. This 

 mixture is very much cheaper than the regular mixture. On the vines 

 of one of my neighbors not sprayed and not much pruned, the amount 

 of rot was so great that the crop was practically worthless ; some 

 varieties are very much more subject to rot than others. Those 

 sprayed five times were better than those sprayed three times. The 

 rains were frequent ; sometimes in ten days hardly a trace of the spray 

 remained. The foliage of the sprayed vines was very much better 

 than that of the unsprayed. It enables the vineyard to mature its 

 wood. 



I never saw a peach on the tree till two years ago. At Columbia 

 we have only one or two trees of a kind, and I don't know the varie- 

 ties ; certain varieties seem to be almost free from disease. One tree 

 sprayed five times gave a very fine crop almost entirely free from rot. 

 The weak mixture we used did not seem to harm the foliage. One 

 pound of Paris green to 240 gallons of water did very slight damage, 

 of no account at all. We sprayed apples with one pound of green to 

 160 gallons of water. This was not successful; the apples were 

 wormy. 



Mr. Kaiser — I appeal to the President of this Society to give us a 

 summing up of this spraying business — what is known. 



J. 0. Evans — I cannot do it and I don't believe any other man can» 

 The results often seem contradictory and uncertain. 



F0RMUL.5: FOR INSECTICIDES AND FUNGICIDES. 



[Given by Miss Murifeldt.) 



KEROSENE EMULSION. 



Make a soap solution of half a pound of soap to a gallon of water. Heat it 

 to the boiling point and remove to a distance from the fire and add two gallons of 

 kerosene or coal oil, which need not be of the most refined quality. Churn or stir 

 it vigorously, or pump rapidly through a force-pump for five to ten minutes. 

 When used as a spray for foliage, add 10 or 12 times as much water and thoroughly 

 mix. When applied to the trunks of trees as a repellent against borers or for 

 scale insects, or to cattle to keep oS horn-fly, use only one-half of the above quan- 

 tity of water. 



PARIS GREEN OR LONDON PURPLE IN LIQUID SUSPENSION. 



One pound of the Paris green or London purple thoroughly interfused through 

 150 to 300 gallons of water, and applied to trees, grape-vines, shrubbery, in as fine a 

 spray as possible. 



For potato beetles and other insects on low-growing plants, mix the poison 

 with from 20 to 30 parts of flour or air-slaked lime, and apply through a fine sieve. 



