1869.] THE VINE DISEASE. 245 



offspring was a Moss Eose, with flowers like the Maiden's Blush, and which was 

 afterwards named Princess Alice. 



A few years later I raised from one and the same sowing of English Eose- 

 seed, the Eoses Beauty of Walthani, Lord Clyde, Eed Eover, Globosa, Princess of 

 Wales, Dr. Lindley, and, I believe, Duke of Edinburgh. Unfortunately in these 

 cases the parentage of the offspring was not preserved. 



Waltham Cross. William Paul. 



THE VINE DISEASE. 



'0 long since as 1863, the Vines in certain English gardens were observed 

 to be infested with minute excrescences on the surface of their leaves. 

 On careful examination these gall-like bodies were found to be caused by 

 the irritation arising from the puncture and sucking of the tissues by a 

 minute insect, related to the aphides. Subsequently, in 1867, a disease in 

 which the roots were affected by similar gall-like tubercles was noticed in the 

 Gardeners' Chronicle. This latter affection would appear to be the same as that 

 which, under the name of Etisie (consumption), was observed in 1865 in the 

 South of France, and which devastated the vineyards of that country to such an 

 extent that a commission was appointed to inquire into the matter, with the 

 result that the malady was found to be attributable to the presence of a hitherto 

 unknown insect, Phylloxera vastatrix, of which an account has since been published 

 by M. Planchon, in the Comptes Renclus for 1868. Whether or no these two 

 forms of disease are attributable to the same insect, has not yet been positively 

 determined ; but it is at least believed, that if not identical, the insects which 

 give rise to them are congeneric. 



Professor Westwood has given in the Gardeners' Chronicle of the present 

 year (p. 190) a resume' of his observations, accompanied by figures, from which 

 we make the following abstract : — 



In the autumn of 1867, and during the past year, my attention has been directed to this 

 insect, which appears to havo become extensively disseminated, and has exhibited its powers of 

 mischief in a most unlooked-for manner, since not only have further specimens of infested 

 vine leaves been received, but portions of the roots of vines have been sent from different 

 quarters, the rootlets of which had been sucked by a wingless insect, which cannot in any 

 manner be distinguished from those of the galls on the leaves. From Cheshire I received in 

 September, 1867, leaves from a young vine, growing with many others in a house 72 ft. long ; 

 it wa3 the only one attacked, having previously made 14 ft. of wood since it was planted in 

 the February preceding, and the insects were only found in the young leaves within five feet 

 of the top. In the following month the same correspondent sent rootlets from his vines, 

 attacked by the same insect. In the latter mode of attack the perfect insect makes a wound 

 in the delicate rootlet, by inserting its rostrum into the wood, and sometimes this is so firmly 

 imbedded as to remain in its position when the insect is removed ; decay is thus induced 

 which penetrates in the form of little cankerous spots, and sometimes extends to the centre, 

 cutting off the supply of nourishment. Diseased specimens have subsequently been received 

 from other correspondents in different parts of England and Ireland. 



In the spring of last year (1868) I communicated to the Ashmolean Society of Oxford a 

 notice (accompanied by highly magnified drawings, which are reduced in the accompanying 

 woodcuts) of this insect, which I then proposed to name Peritymbia Vitisana, in allusion to 

 the tomb-like galls formed on the leaves by the females. 



