VINE MLDEW. 511 



the leaf, like the fungus of the hop, and therefore is 

 more accessible than many other species which 

 insinuate themselves among the intercellular parts 

 of the foliage, and can only be affected by remedies 

 when they make their appearance through the 

 stomates. 



Mr. Forrester, the author of a work upon the 

 vine disease, states that in Portugal the flour of 

 sulphur does not check the fungus as well as fumes 

 of the same, or as a solution of penta-sulphide of 

 lime. Three thousand four hundred and forty-four 

 tons of sulphur were used in the French vineyards 

 for arresting the oidium during the summer of 1856. 



Mr. P. Lazaris, of Athens, Greece, claims to have 

 discovered, in the year 1858,^ that "any substance 

 which is dry and pulverized, and which does not 

 injure the foliage, will cure the mildew." This he 

 states as the results of experiments, and attributes 

 his success to the fact " that, attaching itself easily, 

 it dries the fungus, absorbs its juices, and thus cuts 

 off its nourishment." 



His experiments were as follows : " I powdered 

 my vines with sulphur, except one corner which 

 stood apart from the rest. This was divided into 

 two portions : one was treated with the sulphurous 

 earth of Kalimaki ; the other, simply with clay 

 which had been separated from sand or gravel, very 

 finely pulverized, and dried a few hours in the sun. 



1 Transactions of the New York State Agricultural Society, 1859. 



