THE FLORISTS MANUAL. 



J07 



dip the cuttings before going into the 

 sand and again when taken out. We 

 never saw a cutting injured by its use, 

 and are certain of its efficacy in destroy 

 ing the little fungus so troublesome on 

 the surface of the sand. 



Copper Sulphate Solution. 



Copper sulphate, one pound. 



Water, fifteen gallons. 



Dissolve the copper in the water, when 

 it is ready for use. This should not 

 be used on any foliage, but can be used 

 on the wood of trees and shrubs before 

 the buds start. 



Paris Green. 



Paris green, one pound. 



Water, 200 gallons. 



This will do for poisoning all insects 

 that chew, such as caterpillars and 

 worms. We have found that in apply 

 ing the Paris green it was necessary 

 to add something to make the solution 

 stick to the leaves, and you can use 

 with the above quantities two or three 

 pounds of hard soap, dissolved, or add 

 two quarts of the nicotine extract, which 

 is of a sticky nature. 



London Purple. 



This can be used in the same pro 

 portion as Paris green. To make this 



Funeral Bunch of Roses. 



safer to use on the foliage of chrysan 

 themums add one pound of slaked lime. 

 This also is for insects that chew. 



Florists do not always remember the 

 distinction between the chewers and 

 suckers. The aphides bore into the 

 tissue of plants and suck the juices, 

 and although they may be drenched with 

 the Paris green solution would feel no 

 ill effects from it. The worms and cater 

 pillars eat the surface of the leaves and 

 must consequently get the poison into 

 their stomachs. 



Hellebore. 



Fresh white hellebore, one ounce. 



Water, three gallons. 



Apply when thoroughly mixed. This 

 poison is not so energetic as arsenites 

 and may be used on the more tender 

 growths for insects that chew. 



Kerosene Emulsion. 



Hard soap, one-half pound. 



Boiling water, one gallon. 



Kerosene, two gallons. 



Dissolve the soap in the water by 

 cutting into thin slices; add the kero 

 sene and agitate with a syringe till 

 thoroughly mixed. In this condition, 

 when cool, it will become of the con 

 sistency of sour milk and may be kept 

 indefinitely. Dilute twenty to thirty 

 times with water when applying. Use 



strong emulsion for all scale insects. 



This is used for all insects that suck, 

 as green, black and yellow fly (the lat 

 ter the most troublesome on chrysan 

 themums), mealy bugs, red spider, 

 thrips, and all worms with soft bodies 

 will succumb to this. 



It should, however, be always used 

 with caution. It is best to try the 

 weakest emulsion first. 



Hydrocyanic Acid Gas. 



There has been for years a prejudice 

 against the use of this gas, both from 

 the danger to the plants and to the 

 person using it. In the quantities we 

 used it seven or eight years ago it was 

 dangerous to both unless every precau 

 tion was taken. The necessity of open 

 ing the windows in half an hour after 

 the mixing was most inconvenient and 

 a nuisance. 



After repeated experiments at differ 

 ent strengths, and keeping the ventila 

 tors closed all night, we find the follow 

 ing most satisfactory, harmless to the 

 plants, death to the aphides and easy 

 to apply: 



Water, one pint. 



Sulphuric acid, one pint. 



Cyanide of potash, two and one-half 

 ounces. 



The above quantities for 1,500 cubic 

 feet of air space in your house. And 

 keep your house tightly closed all night. 



A Funeral Bunch of Carnations. 



