THE OANADIA.N HORTICULTURIST. 



27 



A FEW HINTS ON GRAPE GROWING. 



• ( Concluded from page 10. ) 



The Green Grape Vine Sphinx also 

 feeds on the leaves of the grape vine, 

 as likewise does the beautiful Wood 

 Nymph, shewn in Figure No. 8, and 



Figure No. 8. 

 "The BEAU<tiF0L Wood Nymph. (JExidryas grata). 



though they have not as yet become 

 very numerous, should be treated as 

 possible enemies. 



The Thrips, shewn in Figure No. 9, 

 often becomes so numerous as to de- 



Figure No. 9. 

 The Thrips. (Tettigonia vitis). 

 Pere shewn highly magnified, the lines at the left in 

 dicating the natural size, in the one with the wings 

 extended, in the other at rest. 



Btroy the leaves of the vine by preying 

 upon their under-surface. This is par- 

 ticularly the case if too much wood is 

 left on the vine when pruning, causing 

 the foliage to become very dense and 

 matted. This insect is more injurious 

 to those vines whose leaves are thin 

 and smooth, than to those whose leaves 

 are thick and woolly. It is a very 

 troublesome insect when it becomes 

 abundant, and is not easily destroyed ; 

 but, fortunately, it does not follow that 

 because they are abundant in one sea- 



son, they will appear in like numbers 

 the next. 



WHERE GRAPES CAN BE SUCCESS- 

 FULLY GROWN. 



In Europe it is thought that the 

 lowest summer temperature in which 

 the vine succeeds is 65 degrees Fahren- 

 heit ; that is, the mean temperature for 

 the four months of June, July, August 

 and September, must be equal to 65 

 degrees. Whether our native grapes 

 are bound to the same limits of tem- 

 perature, I cannot say ; but we know 

 that quite a number of varieties will 

 grow and ripen their truit at Ottawa, 

 and at Peterboro', and Barrie. Hence 

 it may be inferred that in any part of 

 Canada not colder during the summer 

 than those places just named, those 

 sorts which ripen as early as the Dela- 

 ware may be planted with every ex- 

 pectation of enjoying ripe fruit. 



The Champion, Creveling, Eumelan, 

 Merrimack, Moore's Early, Worden, 

 Brighton, Massasoit, Martha and Lady, 

 have been found to ripen as early, antl 

 some of them ewlier than the Delaware, 

 and hence may be expected to ripen their 

 fruit wherever the Delaware will ripen. 



Along the shores of Lake Huron 

 and the Georgian Bay, the climate is so 

 far modified by those large bodies of 

 water, that many varieties rij)ening 

 later than the Delaware succeed per- 

 fectly. There is a belt of land lying 

 adjacent to those waters, the width of 

 which has probably not yet been fully 

 ascertained, where not only the varieties 

 above mentioned will ripen, but also 

 the Concord, and even tlie lona and 

 Isabella. At a certain distance from 

 the water, the climate becomes less fa- 

 vorable, though the latitude is lower, 

 and it will be found necessary to plant 

 only those that ripen as early as the 



