64 EBERHAR'FS OUTLINES OF 



found in apple orchards all over the Northern United States 

 and Canada. 



Remedies. Lady-bugs destroy many. Syringe trees 

 in spring when buds are bursting with weak lye, strong 

 soap-suds, or tobacco -water. 



THE GRAPE PHYLLOXERA. 



(Phylloxera vastatrix. Plancuon.i 



"The insect* presents itself under several different 

 forms, all of which belong to two types. One of these is the 

 Leaf-Gall Type (gallicola), and the other is found upon the 

 roots of the vine (radicicola). 



" First, as to the Leaf-Gall Type {Gallicola). The gall 

 or excrescence produced by this is a fleshy swelling of the 

 under side of the leaf, more or less wrinkled and hairy, 



Pig. 65. Female Gall Louse. (Very highly magnified.) 



with a corresponding depression of the upper side, the 

 margin of the cup being fuzzy, and drawn together so as 

 to form a fringed mouth. It is usually cup-shaped, but 

 sometimes greatly elongated or purse- shaped. Soon after 

 the first vine leaves that put out in the spring have fully 

 expanded, a few scattering galls may be found, mostly ou 

 the lower leaves, nearest the ground. These vernal galls 



♦This article is condensed by Mrs. Treat from Prof. Riley and here copied 

 by us. 



