86 BEGINNER'S BOOK OF GARDENING 



be destroyed by pouring on them a quart of warm water 

 in which a piece of camphor the size of a filbert has been 

 steeped. 



To destroy Greenfly 



The plants in a green-house or room which have 

 become infested with green-fly are best treated by means 

 of tobacco juice or smoke. The plants should be quite 

 dry, and should be placed close together. In an iron pan 

 should be placed a few red-hot cinders, upon these 

 should be placed some tobacco, and the plants left in 

 contact with the fumes for an hour or more. Instead of 

 the smoke a liquid may be prepared by steeping four 

 ounces of shag tobacco in a gallon of hot water, to which 

 a little size has been added. The plants or shoots 

 affected should be dipped in this liquid, or, if this is 

 impracticable, the liquid may be syringed over the 

 affected parts. 



Snails and Slugs 



The best way of getting rid of snails and slugs is to 

 look for them an hour or two after dark with the aid of 

 a lantern, and crush with the foot when found. During 

 dry weather crops may be protected by dusting the 

 surface of the ground with soot or lime, but these are 

 quite useless directly they become at all damp. 



Worms on Lawns 



Worms on lawns are most easily dealt with by sweeping 

 the lawn with a rough broom and then strewing the 

 surface with an equal mixture of salt and soot, at the 

 rate of fifteen bushels to the acre. An acre contains 

 4840 square yards. 



