22 A LITTLE BOOK OF PEllEJNJNIALS 



An insecticide which kills chewing mouth-part insects does not 

 necessarily kill those with sucking mouth-parts. 



STOMACH POISONS FOR INSECTS WHICH EAT 



Arsenate of Lead. This is the best one. It comes in powder and 

 paste form and is used at the rate of 1 oz. of paste or 14 oz. of powder 

 to 1 gal. of water. Apply as a spray. Soap may be added to help the 

 spray to stick to the plants. The powder may be dusted upon the 

 infested plants. 



Poison Bait. For cut worms, grasshoppers and insects which are 

 difficult to locate, concoct a delicious death bait for them. Mix about a 

 teaspoon of arsenate of lead, a tablespoon of molasses and a little water 

 to each handful of wheat bran. Place a tablespoonful here and there 

 about the garden just before dark to kill cut worms. There is no danger 

 of killing birds with the bran if it is placed under a shingle or a piece 

 of wood where they cannot reach it. 



CONTACT INSECTICIDES FOR INSECTS WHICH SUCK 



Nicotine Extract. Nicotine is death to the Rose lice or any other 

 hce or sucking insects. It is purchased in a concentrated from and 

 should be used according to the directions upon the container in which 

 it is purchased. Soap added to the mixture will help it to adhere to 

 the bodies of the insects. 



DISEASES 



Plants are diseased when their normal activities are not func- 

 tioning properly or when they are the prey to fungi and harmful bac- 

 teria. The plants most crowded and not growing properly are most 

 seriously affected. Sunhght and proper air circulation are great pre- 

 ventives. Wet seasons favor diseases. Diseases are more easily pre- 

 vented than cured. It must be remembered that in killing a disease 

 we are confronted with the problem of killing one plant — the disease — 

 without kilHng the plant affected with this disease. Preventing disease 

 consists in refraining from planting any plant in the same spot year 

 after year; it consists further in the destruction by burning of any 

 part of the diseased plant; together with proper spraying. Spraying 

 with a fungicide may kill the fungus, but it never cures the leaf, 

 flower or stem affected. Its value lies in preventing the spread of 

 the disease to other parts of the plant. The control of fungous diseases 

 depends generally upon the use of copper and sulphur. 



FUNGICIDES 



Powdered or Flowers of Sulphur. This is useful in controlling 

 mildews, which are surface diseases characterized by a whitish powdery 



