THE PHYLLOXERA 



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rectly, it is true, but attacking the roots. These, 

 done to death by the insect's sucker, cease to draw 

 from the soil the nourishment needed by the vine. 

 The vine-stock wastes away, and with it the leaves, 

 which become yellow and withered. 



"It is not merely the foliage, then, that the phyl- 

 loxera dries up ; it withers and kills the whole vine. 



Vine-pest (Phylloxera Vastatrix) 

 », Healthy vine rootlet; b, rootlet showing nodosites; c, rootlet in decay; 

 d, female pupa; e, winged female, or migrant. (Hair lines show natural 



sizes.) 



Moreover, the name it bears was not invented ex- 

 pressly for it, but was borne by another before the 

 ravager of vineyards became known. The louse 

 that was first called phylloxera lived at the expense 

 of the oak-tree and took up its station on the leaves, 

 sucking the sap from them. There you have the true 

 witherer of leaves. The vineyard louse has there- 



