112 



THE PHYLLOXERA ON THE GRAPE VINE. 



the problem how to destroy the Phylloxera is to kill the winter egg deposited on 

 the cane by smearing the cane with coal-tar or any other suitable means, since it 

 is that egg that renews the generations that attack the roots. It may not be so 

 easy to do so in the open air in France, but in our Vineries we ought to be able 

 to do so more easily (always supposing their hypothesis to prove well founded), 

 first by examining anatomically and microscopically the specimens found, and 

 seeing from the number of their ovarian tubes whether the broods t young are 

 far advanced in the cycle, and likely soon to be reduced to the single egg that 

 renews it ; and if so, to take special precautions against it, which ought to be 

 the more easy to do, as it is said always to be laid on the cane, and never on the 

 bud or the leaves." 



Fig. 49. VINE LEAF INFESTED WITH PHYLLOXERA. 



(From the Gardeners' Chronicle.) 



