282 AROUND THE YEAR IN THE GARDEN 



spray the former with a nicotine extract (which may be 

 had in a number of readily available forms such as "Aphine " 

 and "Black Leaf 40" to be used after simply diluting with 

 water) ; and for the latter use fumigation or nicotine extract 

 for the matured flies and kerosene emulsion for the young 

 or nymphs, which resemble, and must be treated exactly 

 as if they were scales. Examine your plants carefully 

 at least once every week, as these, like other insect pests, are 

 inconspicuous when they first put in their appearance and 

 keep out of sight until they have mobilized large armies of 

 descendants. 



