. The Canadian horticulturist [monthly], 1905. Gardening; Canadian periodicals. SPRAYING AGAINST THE BLACK ROT \V. H. BUNTING, ST. CATHARINES. 1HAVE noted with considerable interest the timely articles in The Horticulturist on black rot of the grape, more especially those from Mr. W. T. Macoun, of the Cen- tral Experimental Farm, and Prof. Loch- head, of the Ontario Agricultural College, both of whom have been taking a lively in- terest in the work of the fruit growers of Ontario. As my vineyards have been inci- dentally mentioned in these articles, I have thought that I might add a word or tw
. The Canadian horticulturist [monthly], 1905. Gardening; Canadian periodicals. SPRAYING AGAINST THE BLACK ROT \V. H. BUNTING, ST. CATHARINES. 1HAVE noted with considerable interest the timely articles in The Horticulturist on black rot of the grape, more especially those from Mr. W. T. Macoun, of the Cen- tral Experimental Farm, and Prof. Loch- head, of the Ontario Agricultural College, both of whom have been taking a lively in- terest in the work of the fruit growers of Ontario. As my vineyards have been inci- dentally mentioned in these articles, I have thought that I might add a word or two emphasizing the conclusions arrived Spraying: on the Farm of Alex. Heazlitt, Adolphustown, Lennox County, Ont. The grape industry, which has reached large proportions, and become a most im- portant interest, is threatened with a serious danger unless prompt measures are taken to check the inroads of this fungus disease. I have had evidence of the presence of the rot for several years amongst the Rogers varieties on sandy soil, and have been spray- ing to some extent, but with indifferent suc- cess, because the work was done in a spas- modic way, and usually not taken up until after the damage to the fruit became more or less evident. It was not until 1901 that symptoms of this disease were seen on the Niagara grape, but during that year it sud- denly appeared when the fruit had attained nearly full size but had not commenced to ripen. An application of Bordeaux mix- ture seemed to check it. There also ap- peared that year what has become commonly known as petrified grapes. The berry, in- stead of ripening in the ordinary way, be- came solid and opaque, assumed a dull grey or greenish white appearance, and finally dropped to the ground. In 1903, owing to peculiarly favorable at- mospheric con- ditions, black rot spread' so rapidly, not only over the Nia- gara grapes, but also affected nearly all other varieties and was in evidence in so many vineyards it be- came apparent
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