THE CANADIAN HORTICULTURIST. 



235 



and should then be well watered and 

 shaded from the hot sun for several days. 

 — ATnerncan Cultivator. 



THE RADISH AND CABBAGE FLY. 



Every gardener has been sufficiently 

 annoyed by the larvse of these flies, in 

 the form of little white maggots, eat- 

 ing his radishes or burrowing in the 

 stalks of his young cabbage plants, to 

 hail with delight any remedy that will 

 rid him of these pests. Prof. A. J. 

 Cook, Michigan Agricultural College, 

 writes to the American Agriculturist 

 as follows : 



" For the past two years I have been 

 experimenting with Bisulphide of Car- 

 bon to destroy subterranean insects. 

 This substance has proved effectual, 

 but in case of the insects in question, 

 especially the Radish Fly, its expense 

 is an objection to its use. The past 

 season I have tried a new remedy with 

 gratifying success. This consists of a 

 preparation of Carbolic Acid. The 

 material which I used was prepared as 

 follows : Two quarts of common soft 

 soap were added to one gallon of water, 

 and all heated until it commenced to 

 boil, when it was removed from the 

 stove, and while yet hot one pint of 

 crude Carbolic Acid was added, and all 

 thoroughly mixed. This was then set 

 away in a close vessel, and was ready 

 for use as occasion might require. To 

 repel the insects in question, one part 

 of this mixture was added to from 50 

 to 100 parts of water, and the new 

 mixture was sprinkled on the plants as 

 soon as they were up, and after that 

 once every week. This same prepara- 

 tion will serve to repel the Cabbage 

 Fly {AntJiomyia brassicce). But for 

 the latter, my experiments go to show 

 that Bisulphide of Carbon is cheap, 

 efficient, and does not simply drive the 

 fly away, but destroys the maggot. As 

 " he that fights and runs away, m^y 



live to fight another day," the Bisul- 

 phide of Carbon remedy is, T think, to 

 be preferred to the Carbolic Acid mix- 

 ture for use against the cabbage mag- 

 got. We sprinkled the Carbolic Acid 

 preparation directly upon the radish 

 plants, without injury to the latter ; 

 but if it is found to injure the plants 

 from too great strength, it will serve as 

 well to turn it in a trench made close 

 along beside the rows of plants. The 

 peculiar odor of the acid which repels 

 the flies as they come to deposit their 

 eggs so far escapes that it is necessary 

 to apply the liquid as often as once a 

 week to insure perfect success. Cau- 

 tion is required also that the prepara- 

 tion be not so strong as to injure the 

 plants when placed immediately upon 

 them. From one season's trial I can 

 strongly recommend the above appli- 

 cation." 



WHITE GRAPES FOR THE MILLION. 



Josiah Slater, well and favorably 

 known to pomologists, has a spicy article 

 in the Gardener' s Monthly on the new 

 white grapes, from which we glean the 

 following points regarding the Pock- 

 lington, which is attracting general at- 

 tention : 



I have been familiar with the Pock- 

 lington for five years. The first two 

 years of my acquaintance with it the 

 original vine was so over-cropped as to 

 retard its ripening and spoil its quality. 

 It has, however, improved in quality 

 every season since. This la.st year, 1880, 

 the Pocklington was fit for market in 

 Monroe Co., N.Y., about September 

 6th, but it is much better, with little or 

 no pulp and with a honeyed sweetness 

 by 15th or 20th of September, and fully 

 ten days Oiirlier than the Concord on the 

 same grounds. It hangs well on the vines 

 till destroyed by frost. The Pocklington 

 is a seedling of the Coucord, just as 

 strong and vigorous a grower, fully as 



