. The more important fruit tree diseases of Ontario [microform]. Fruit; Pulvérisation et poudrage en agriculture; Spraying and dusting in agriculture; Fruits; Exploitations agricoles. 27 Prevention. Prune the trees so as to let in light and air and facilitate spray- ing. Spray thoroughly and at the proper times. Peaches should be spraved with concentrated lime-sulphur, strength specific gravity (=1 gallon commercial lime-sulphur to 7 gallons of water) early in the spring before the buds begin to swell. A second spray should be given about a month after the fruit is set with self-boiled l
. The more important fruit tree diseases of Ontario [microform]. Fruit; Pulvérisation et poudrage en agriculture; Spraying and dusting in agriculture; Fruits; Exploitations agricoles. 27 Prevention. Prune the trees so as to let in light and air and facilitate spray- ing. Spray thoroughly and at the proper times. Peaches should be spraved with concentrated lime-sulphur, strength specific gravity (=1 gallon commercial lime-sulphur to 7 gallons of water) early in the spring before the buds begin to swell. A second spray should be given about a month after the fruit is set with self-boiled lime-sulphur. In wet seasons, when rot is likely to be bad, ii is advisable to spray again with self-boiled lime-sulphur about a month before tht fruit ripens. Sulphur dust could probably be substitute] for the liquid and could be ppplied about two weeks before picking, as it vould not stain the fruit. Thin peaches so that they do not touch each other. This helps to prevent the rot spreading. Spray plums and cherries, first, just before the buds burst, with concentrated lime-sulphur, strength specific gravity or (=1 gallon of commercial to 7 or 9 gallons of water); second, just after the fruit is set and the calyces have fallen with concentrated lime-sulphur, strength specific gravity or ('=1 gallon commercial lime-sulphur to from 35 to 40 gallons of water) or with Bordeaux mixture; third, about ten days or two weeks later, depending upon the weather, with concentrated lime-sul- phur, strength specific gravity (=1 gallon commercial lime-sulphur to about 40 gallons of water) or with Bor- deaux mixture. All varieties subject to rot should receive an application just when the fruit begins to colour, which is about as late as is safe, to avoid staining the fruit, with lime-sulphur, strength specific gravity (=1 gallon com- mercial lime-sulphur to 40 gallons of water). Poison is not necessary at this time except where Cherry Fruit Flies are presen
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