48 GARDEN PROJECT 
cumber crop in a few days. This insect may be effect- 
ively controlled by spraying with a solution of nicotine 
sulphate—40% solution. A solution of one part in 
one-thousand parts of water will produce the desired 
result and will not injure the foliage. The lice live 
11. Prant Licr, WincLEss TYPE 
mainly on the under surfaces of the leaves. As they 
do not chew but rather get their food by sticking their 
beak into the tissue of the plant and drawing out the 
sap, it is necessary to cover their bodies with the ma- 
terial named in order to kill them. Arsenical poisons 
are of no help in controlling this insect. 
The method of applying the spray is as important 
as the material itself. For the best results use a Ver- 
moral nozzle with bent shank, fastened on the end of 
a spraying rod. If the nozzle is worked about and 
between the foliage thoroughly and a fairly high pres- 
sure is maintained, the material will be thrown out in 
a fine spray and practically every insect on the plants 
will be reached. 
(d) Colorado potato beetle. Paris green, or lead 
