EXPERIMENTS WITH INSECTICIDES AND FUNGICIDES. 



REPORT ON EXPERIMENTS WITH INSECTICIDES 

 AND FUNGICIDES. 



Since the publication of my last Report much work has been 

 carried out on insecticides and fungicides, both in the laboratory and 

 in the orchard. 



Experiments with the lime and salt fluid, for killing the eggs of the 

 Apple Sucker and Mussel Scale, have proved once and for all, so far as 

 the writer is concerned, the uselessness of this sprayfluid. 



The mixture used was as follows : 



Best White Lime ... ... ... 168 Ibs. 



Agricultural Salt ... ... ... 30 Ibs. 



Water ... ... ... . . . i oo gallons. 



Very careful observations have been made upon the material in the 

 laboratory and also upon the trees in the open. In the laboratory the 

 highest percentage of eggs of the Apple Sucker destroyed was 42 per 

 cent., and of Mussel Scale, 38 per cent. 



In the open the percentage must have been considerably less. 



The results obtained with the Vi and V2 Fluids continue most 

 satisfactory. It is not too much to state that, to use the words of a 

 grower, " they are transforming the orchards of this country." 



Very important results have been obtained with a mixture of the 

 Vi and \ T 2 Fluids and potassium sulphide, as a cure for the American 

 Gooseberry Mildew. The potassium sulphide has been combined with 

 both for the purposes of winter and summer spraying, the former being 

 known as the Vi K Fluid, and the latter as the \2 K Fluid. 



I am hoping to have an extensive series of experiments made with 

 these two fluids upon a large number of fungus diseases. 



Among other matters that have received attention are the better 

 preparation of Bordeaux mixture, and the preparation of an Arsenate 

 of Lead paste or fluid at a considerably less cost than this can at 

 present be obtained, and some experiments designed to provide a more 

 effective sprayfluid for hops. 



The action of all of these specifics has been carefully noted and a 

 full report will be published at a later date. 



