40 



The Canadian Horticulturist. 



was eaten. A large portion of the 

 surface was gnawed out for food, 

 and not for purposes of oviposition, 

 and tlie feasibility of poisoning the 

 adult beetles by clothing the fruit 

 with poison clearl}- shown. 



" But even more satisfactory breed- 

 ing-cage experiments were made in 

 Illinois by Professor Forbes, who 

 informs me that he has found that, 

 besides gnawing out the fruit, the 

 adult curculio eats freely of the sub- 

 stance of the leaves. He adds that 

 the curculios ' are certainly very 

 freely exposed to destruction by 

 poison, without reference to their 

 habits of oviposition or the first food 

 of the larvae ; ' and that he has ' also 

 learned experimentalh' that spraying 

 the leaves with Paris green would 

 poison the beetles completely.' Pro- 

 fessor Forbes discussed at some 

 length the details of his experiments, 

 which confirmed the conclusions 

 reached in my experiments, in an 

 address delivered at a meeting of 

 the Central Illinois Horticultural 

 Society during last August {Prairie 

 Farmer, x\ug. ii, 1888). Professor 



A. J. Cook of the Michigan Agricul- 

 tural College also announces in 

 Bulletin No. 39 similar results." 



Little remains to be said except 

 to congratulate the fruit-growers that 

 at last we have at our command an 

 easy means of destroying this ver}- 

 troublesome insect. We will add, 

 how^ever, for the sake of those who 

 are not familiar wdth the use of Paris 

 green upon fruit-trees, that the poison 

 is mixed with water in the proportion 

 one pound to one hundred gallons of 

 water, and applied by means of a 

 force-pump furnished with a spray 

 nozzle. The application should be 

 made early in the season, soon after 

 the appearance of the leaves and 

 blossoms, and should be repeated if 

 the poison is soon washed away by 

 rains. 



Careful experiments have shown 

 that there is practically no danger in 

 the use of poison on fruit-trees in 

 this way, as it is all removed by the 

 summer rains before the fruit matures. 



John Henry Comstock. 

 (/;/ Bulletin, No. III., Cornell Ag. 

 Ex. Station, Ithaca, N. Y.) 



THE CULTURE OF CELERY. 



By W. S. Turner, Cornwall, Ont. 



[4 ' / \ ' GREAT deal has been 



-' • ^ written on this subject 

 in this Canada of ours, 

 and there seems to be 

 a general belief that it is 

 quite a serious undertak- 

 ing to grow celery to 

 perfection. 



Now I want to show in ni}- humble 

 experience, at least, this is not the 

 case, for it is as easy to grow as any 

 other vegetable, has fewer insect 

 enemies, and what is not of the least 



importance to those who have a small 

 area of ground, it can be grown as a 

 second crop. 



For instance, I have grown 700 

 heads in the space of less than 100 

 square feet, and nearly all as a 

 second crop. 



Where there is command of any 

 quantity of water as it is common in 

 many of our large towns, (for quite a 

 number of places are now supplied 

 with water-works) it is still a greater 

 advantage — though I would here cor- 



