172 



TJie Canadian Horticulturist. 



They may also be poisoned by 

 spreading about molasses, poisoned 

 with Paris green, or cyanide of 

 potassiinn. 



For trapping the ants, a sponge 

 moistened with sweetened water may 

 be used, and when black with ants 

 throw it into boiling water. Fresh 

 bones may be used in the same way. 



A Peap Tree Beetle. 



51. For the past three years our pear trees 

 have been infested with a broad-greyish- 

 brown bug about the time the fruit begins to 

 ripen. Can you tell us a remedy for them ? 

 — Mrs. Wm. Cook. 



It would be impossible to identify 

 an insect from such a brief descrip- 

 tion. Can you not send in a speci- 

 men this Summer ? 



The Indian Cetonia is a beetle a 

 little more than half an inch in length, 

 with a broad body. The second 

 brood appears in September, and 

 burrows deeply into the ripe fruits 

 and inducing decay. For it, the only 

 remedy suggested is " Catch 'em and 

 Kill 'em." 



Duty on Garden Seeds. 



(See Question 35.) 



With reference to this, Mr. G. F. 

 Fawcett, Customs Department, Ot- 

 tawa, gives us the following list of 

 transfers to the free list. 



Green fruits, and edible berries in 

 their natural condition, viz : — Bana- 

 nas, Olives, Pineapples, Plantains, 

 Tamarinds, Apples, Blackberries, 

 Gooseberries, Raspberries, Straw- 

 berries, Cherries, Cranberries, 

 Peaches, Plums, Quinces, Apricots, 

 Lichi-fruit, Mangoes and Melons, 

 Pomagranates, Citrons, Tomatoes. 



Seeds, viz : — Anise, Anise-Star, 

 Canary, Caraway, Clover-grass and 

 Flowers, Cotton (crude), Cardamon 

 (crude), Chia, Jute, Mustard, brown 

 and white. Sugar-beet, Seeds of fruit 

 trees and forest, (not edible,) Sesame, 

 Sugar-cane, Anise-Star, Cummin and 

 Tonquin Bean. 



Plants, Trees and Shrubs, viz : — 

 Apple, Peach, Pear, Plum, Cherry, 

 Quince and all other fruit trees, and 

 the budded stock of the same: Goose- 

 berry, Raspberry, Blackberry, Cur- 

 rant and Rose bushes. Grape Vines, 

 Strawberry Vines ; Shade, Lawn 

 and Ornamental Trees, Shrubs and 

 Plants. 



London Purple. 



52. I NOTICE some advise London purple 

 as safer to use and quite as effectual as Paris 

 green. Which do you advise ? — A. Ronald, 

 Mincsiii<r. 



So far as the safety is concerned, 

 we see little advantage in the London 

 purple, for it, as well as Paris green, 

 is a deadly poison. 



Both contain arsenic, and the 

 greatest caution should always be 

 exercised in handling either ^one. 

 London purple mixes with water 

 better than Paris green, indeed, the 

 latter is not soluble in water, and is 

 only held in suspension by frequent 

 stirring, and in this respect the 

 former is preferable. In strength, 

 however, the Paris green is the more 

 reliable, because it is a chemical 

 compound of constant strength, being 

 an arseniate of copper, and contain- 

 ing about 60 per cent, of arsenious 

 acid. London purple on the contrary 

 is an arseniate of lime, a refuse pro- 

 duct from the manufacture of aniline 

 dyes, and varies in relative propor- 

 tions of arsenic and lime which it 

 contains. Generally speaking it 

 contains about 43 per cent, of 

 arsenious acid and about 21 per cent, 

 of lime. Great care should be taken, 

 however, to^ secure a pure article of 

 Paris green, as there is a great deal 

 of adulteration practised by vendors. 

 As to price of Paris green, a pure 

 article should be got for 25 cents per 

 pound. Mr. Fisher, of Freeman, 

 writes he can buy it in Hamilton, in 

 50 pound lots, for 18 cents per pound, 

 guaranteed pure. 



