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Erineum vitis is the name of a very minute fungus 

 making its appearance very often on the leaves of the 

 vine in places where, from wounds or other causes, 

 extravasated sap occurs. It is in the form of yellow, 

 woolly tufts. We are not aware of its occuring so 

 abundantly as to be injurious to the vine, and it would 

 be destroyed probably by the usual sulphur fumiga- 

 tion. 



INSECTS. 



The vine is subject, under bad cultivation, to be at- 

 tacked by every genus of insect that infects the hot- 

 house. In the open air no tree is less liable to insect 

 ravages. 



Acarus tellarius, the Red Spider, is one of the 

 vine's in-door enemies. It generally resides and 

 breeds on the underside of the leaves, and the infested 

 leaves are very distinguishable as soon as they are 

 thus attacked ; for the insect wounds the fine capil- 

 lary vessels with its proboscis, and this causes the 

 upper surface of the leaf to appear full of very small 

 dots, or spots of a light colour. When the Acari are 

 very numerous, they work a fine web over the whole 

 under-side of the leaf, as also round its edges ; and 

 it is curious to observe, that they commonly carry this 

 web in a straight line, from one angular point of the 

 leaf to another, on which boundary line, in a warm 



