248 The Flower Garden [Chapter 



Plant Louse or Green Fly: This little insect com- 

 monly infests house-plants; it is called a fly because 

 in one stage of its existence it has wings. The rem- 

 edies are tobacco in some form, or sulpho-tobacco 

 soap syringed on the foliage, or the hot-water bath. 



Black or Chrysanthemum Lice require practically 

 the same treatment. Tobacco-dust on the leaves will 

 usually prevent their appearance, and should be ap- 

 plied early in the summer and after every rain. 



The Mealy Bug is a little whitish mass, like cotton 

 in appearance, often found on house-plants and on the 

 Spiraeas. Syringe with whale-oil soap solution; or, if 

 the plant is small, work over it, touching each bug with 

 a brush dipped in alcohol ; or use the hot-water bath. 



Red Spider can only be kept at bay by fresh air 

 and the plentiful use of water; spray or syringe daily. 

 Use the hot-water bath if the spiders have gotten a 

 foothold. 



Rose Hopper, or Thrips small yellowish insects 

 on the under side of Rose leaves, from which they 

 suck the juice, causing them to turn brown; whale- 

 oil soap syringed on the under side of the leaves is 

 the best remedy. 



Rose Slugs are small green caterpillars that feed 

 on the Rose leaves and buds, lying on the under side 

 of the leaves, or drawing two leaves together with a 

 slight web. Work over the plants, pinching the leaves 

 between thumb and finger, or syringe with whale-oil 

 solution, or dust with powdered hellebore when wet. 



