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The Canadian Horticulturist 



OUTLINE OK PLANS FOR USING FUNGICIDES AND INSECTI- 

 CIDES FOR 1S92. 



FOR THE AI'I'LE. 



'1\A\' for the destruction of the spores of the apple scab 

 and leaf blight, with sulphate of copper (blue vitriol), one 

 pound to twenty-five gallons of water, or sulphate of iron 

 ( copperas), one pound to two gallons. For the destruction 

 of the tent caterpillar, canker worm and bud moth, use the 

 IJordeaux mixture, one-half strength, with Paris green, one 

 [tound to 150 gallons, just before the blossoms unfold, and 

 for the same and the codling moth, as soon as the petals have fallen. Make a 

 third application of the Bordeaux mixture and Paris green in about two weeks 

 from the time the petals f?ill, should there have been heavy rains since the last 

 application ; then use the ammoniacal carbonate of copi)er, one pound to 50 

 gallons of water, at intervals of from two to four weeks, according to the weather, 

 until the middle of August. We would recommend the trial of sulphate of 

 copper, one pound to 500 and 800 gallons of water, after the middle of June. 

 Should no rain occur after the use of any fungicide or insecticide, no further 

 application need be made until it does rain, but if the interval has been long, 

 spraying should immediately follow a heavy rain. 



FOR THE PEAR. 



For the pear scab, leaf blight and cracking of the fruit, and codling moth, the 

 same treatment should be given as for the apple, except that no Paris green need 

 be used until after the petals have fallen, and only two applications of that need 

 be made. If the pear tree psylla should appear, spray the trees thoroughly with 

 the kerosene emulsion, one part to twenty parts of water. 



FOR THE PLUM. 



We would advise the same treatment as given to the ajiple and the pear, for 

 the plum leaf blight, black wart and the fruit rot. For the plum curculio, use 

 the Bordeaux mixture, one-half strength, with Paris green, one pound to 200 

 gallons. One application of the ammoniacal carbonate of copper should be 

 made after the middle of August, to prevent the rotting of the fruit and the leaf 

 blight. 



FOR THE PEACH. 



To destroy the plum curculio, spray with the Bordeaux mixture, one-fourth 

 strength, and Paris green, one pound to 200 gallons. For the fruit rot, spray 

 with the ammoniacal carbonate of copper, one pound to 50 gallons of water. 

 Try the suli)hate of c<jpper, one pound to 100 gallons of water, for the fruit rot. 



