The Canadian Horticulturist. 



27) so rapidly spreading through our 

 vineyards, is the flour of sulphur. The 

 fumes given at high temperature by this 

 powder are destructive to the fungus ; 

 and therefore the best effect can be 

 gained when the thermometer is the 

 highest, as say from ']'f to gs"" F. 

 Where the temperature of the soil is as 



high as no'' to 120" during the day it 

 is found that it is sufficient to merely 

 strew the sulphur upon the surface of 

 the ground under the vines. It is 

 stated also that where the temperature 

 does not exceed 77' the effects of the 

 sulphur will not be apparent until after 

 a week's time. 



QUESTION DRAVS^ER 



The Grape Vine Flea Beetle. 



5i. I SEND you a sample of the doings of 

 an insect that I have foami playing havoc 

 with both ^rape vines and Virginia Creeper. 

 It is something new to me, but, perhaps, some 

 of the members of the F.G.A. may know it. 

 I got it at Mr=. \Vm. Ball's, HuUet, near 

 Ball's Bridge. The grape vines were killed 

 off wi;h the frost and now the young shoots are 

 being destioyed with this pest, and it is just as 

 bad on the Virginia Creeper, leaves of both I 

 enclose with the little worm. The moth you 

 see was on the leaf just where I ciushed it. I 

 thought it might be iuteresting 10 the Society, 

 I therefore t"'-k 'ome specimens for you. — 

 WaiITER iifOI^r Godtrich. 

 •j'. rm / •- J '1 I 



10 

 lo 

 orb i'-jj;/ij'3H^j 



^! TP)!;. -^iU^f ffi^ffiRj^fe; Vine Flka Beetlk. 



,,.fT];^e jfis^ct,.^eaiclosed in the box, 

 together Avithsome well riddled grape 

 vine, leaves, is the Grape-vine Flea 

 beetle, known to entomologists as 

 Gmptodera Chalyhea. It is a near 

 relative of the potato beetle, both 

 belonging to the icLmWy Chrysomelidce 



or leaf eaters. The moth enclosed 

 has no connection with the larvae 

 which have so greedily stripped the 

 vines of their foliage ; the parent is a 

 beetle, which is very destructive 

 some seasons by boring into and 

 feeding upon the young buds. It 

 hibernates under loose patches of 

 bark or other refuges from the cold, 

 and after feeding upon the buds dur- 

 ing the month of April, and the 

 leaves in the month of May, it 

 deposits upon the foliage clusters of 

 orange colored eggs, which soon 

 hatch out into the still more destruc- 

 tive larvae, such as those which Mr. 

 Hick has sent in to us. 



In order that our readers may the 

 easier distinguish this beetle and its 

 progen}-, we copy an engraving show- 

 ing its various stages. The larvae is 

 shown in Jig. a, hard at work skele- 

 tonizing a leaf, and at b highly mag- 

 nified. When full grown, it is a 

 little more than three-tenths of an 

 inch in length, of a brown color with 

 a black head. After feeding about a 

 month it descends to the earth and 

 encloses itself in a small roundish 

 cell such as is shown at c, from which 

 iri about three weeks emerges the 

 perfect beetle. The latter is described 

 as about three-twentieths of an 

 inch in length, and varying in color 

 blue to green. 



To destroy the beetles, Prof. Saun- 

 ders recommends in his book on " In- 

 sects Injurious to Fruits," strewing 

 air-slacked lime or unleached wood 



