ii6 



SPRAYING CROPS 



beaks. These are Red Spiders. They multiply be- 

 neath their silken webs, where one may find colonies 

 of individuals (so small as to be scarcely visible to the 

 naked eye) in all stages of existence. The infested 

 leaves assume a yellowish hue, and many of them 

 finally fall ofl:. 



Rciiicdics — The Red Spider flourishes bes-t in a 

 dry atmosphere. It is seldom troublesome in green- 

 houses where the air is kept saturated with moisture 

 and the plants are sprayed with water every day. In 

 window gardens the plants should be sprayed with 

 water or soap-suds every day, as soon as they show 

 signs of the presence of this pest. 



There are many different species of Aphides, 

 Plant-lice, or "Greenflies," affecting various flow- 

 ering-plants. But all are quite similar in life-history 

 and habits, and the same remedies apply to each. They 

 all multiply with marvelous rapidity, on account of 

 their habit of giving birth to living young without the 

 presence of male aphides. They mature rapidly, and 

 obtain food by inserting their pointed beaks into the 

 stem or leaf and sucking out the sap. There are 

 generally two forms of them, one being winged 

 {b, c) and the other wingless (a). These insects are 

 the commonest pests of the flowering-pJants. 



Remedies — Spray with strong soap-suds or 

 kerosene in mechanical mixture or emulsion, fish-oil 

 soap, whale-oil soap, or tobacco decoction. 



