INSECTS, DISEASES AND OTHER PESTS 235 



SNAILS 



Snails are sometimes a pest to the Carnation grower 

 and do harm, especially to the young plants. Regular 

 light dustings with hme, and soot, each used separately 

 are recommended, but these must be persistent until the 

 snails have been cleared away. Or traps may be formed 

 of slices of Potato laid about on the surface of the soil, 

 these being gone over each morning and the snails thrown 

 into hot water or otherwise destroyed. 



BUDS ATTACKED BY CUT WORMS 



The remedy for this pest is to visit the plants at 

 night with a lantern and to remove the cut worms by hand, 

 or, as an alternative, lay pieces of broken pots or similar 

 material about at the base of the plants and uncover these 

 the next morning; the cut worms congregate under these 

 shelters. Thirdly, lay .piles of sweetened bran about, 

 these to be mixed with a little arsenic or Paris green, one 

 part of the latter to six of the bran. 



EFFECT OF GAS ON CARNATIONS 



Cases are not infrequent in which gas from street mains 

 through leak or other cause permeates the ground, and in 

 Winter, when the surface of the street or uncovered land 

 is frozen hard this gas finds an exit through heated green- 

 houses where the soil is not ice-bound and is, therefore, 

 permeable. Much damage has been done from time to 

 time. The first signs of poisoning by gas are when the 

 plants begin to sicken, the flower goes to sleep, foliage 

 turns yellow and the growth wilts. Leaks even forty feet 

 away may give trouble in the manner described. 



