178 POPULAR SCIENCE MONTHLY 



statement that the Ceratitis on peach was effectually controlled by para- 

 sites in Brazil would be sufficient to discredit this entire method of in- 

 vestigation. For this reason only the best trained scientists especially 

 educated for this line of work should attempt it and it would seem in 

 many ways an appropriate work for the government to take up as it 

 would necessitate much travel and expense, and its benefits would not 

 be restricted to any one state. 



If economic entomology is to attain success during the present cen- 

 tury then it will be by inducing a more general adoption of the methods 

 of treatment now known but not used generally enough; by the pro- 

 duction of new, pest-resistant varieties of plants by experimental plant 

 breeding; and by utilization of all the parasitic forces the world has 

 available, establishing the parasites where their services are most needed 

 and as free as possible from their own enemies. The old methods have 

 proved too nearly useless because they have been so little adopted. A 

 new departure must be taken and the world is waiting for a new 

 Moses to lead the way out of the wilderness. 



