170 



THE CANADIAN HORTICULTURIST. 



to kill the larvje tliat are in them be- 

 fore they escape from the plums and 

 burrow in the ground. The cost of the 

 labour involved in thus catching and 

 killing the curculio is but a small mat- 

 ter in comparison with the value of a 

 cro]:) of plums. 



The Black-Knot has been another 

 source of discouragement. These ex- 

 cresences are believed to be caused by 

 the attacks of a fungus. In some years 

 they have been very prevalent, and so 

 overspi'ead the tree as ultimately to de- 

 stroy it altogether. The only remedy 

 that has yet been tried is that of cut- 

 ting off the affected branche-s and 

 promptly burning them, so as to destroy 

 the spores of the fungus and prevent 

 them from spreading. Sometimes the 

 excresences become so numerous upon 

 the tree that nothing remains but to 

 dig it up altogether and burn all the 

 affected parts. 



Yet with all these evils to contend 

 with, the watchful and painstaking cul- 

 tivator has found a plum orchai'd a re- 

 munerative industry, perhaps, in some 

 measure, because cai-eless cultivators 

 abandon the enterprise. 



OBITUARY. 



The venerable President of the Am- 

 erican Pomological Society will receive 

 the heartfelt sympathy of every pomo- 

 logist in this and other lands, in the 

 very sore bereavement that has befallen 

 him. His son, Marshall P. Wilder, 

 Jan., a young man possessing noble 

 qualities of mind and heart, united to 

 fine executive abilities, died at his 

 father's residence, Dorchester, Massa- 

 ^chusetts, on the seventh of June last. 



While this blow falls with crushing 

 weight upon his family and near friends, 

 the loss is one in which all lovers of 

 horticulture will participate, for in him 

 were centred the expectations of all 

 who hope for a continuation of the hor- 

 ticultux-al experiments which have 

 made the orchards and grounds of the 

 parental homestead famous throughout 

 the world. 



THE GREAT WORLD'S EXPOSITION 

 AT NEW ORLEANS. 



It is already announced that there 

 will be a cheap excursion from Ontario 

 to this great exhibition some time in 

 the early part of next winter, with pri- 

 vilege of remaining as long as the ex- 

 hibition lasts. Those wishing to go 

 can obtain full information from Mr. 

 H. J. Hill, Toronto. 



QUESTION DRAWER. 



ROSE SLUG. 



There is some slug destroys my rose- 

 bushes yeaj'ly by desti-oying the leaves, 

 which spoils the bloom for the season. 

 Please send me a remedy. 



Which is the best way of making a 

 grape trellis so as to lay it down in 

 winter and not injure the A'ines ] 



John Laing. 

 REPLY. 



The rose-slug can be kept in com- 

 plete subjection by the application of 

 hellebore in the same manner as it is 

 applied to currant bushes to kill the 

 currant saw-fly. An ounce of powder- 

 ed white hellebore mixed in a pailful of 

 water and sprinkled freely on the rose- 

 leaves, will soon rid the rose-bushes of 

 this pest. 



In the May number of the Canadian 

 Horticulturist for this year, on page 107, 

 Mr. Allan McInto.sh gives his plan of 

 making a grape trellis so that the vines 

 can be laid down at the approach of 



