THE PRINCIPLES AND DETAILED 

 PROCEDURE OF MOSQUITO CONTROL 



THE MOST SUCCESSFUL HUMAN ATTACKS Oil the mosquito for the last 

 twenty or thirty years have been centered on the larva as the most 

 vulnerable stage. So far no practical means has been found of attack- 

 ing the adult, the egg or the pupa, but research in these matters should 

 be constantly prosecuted. 



Basic principles of attacking the larvae follow : 



1. Since the larval stage can live in water and in water only, elimina- 

 tion of mosquito-breeding waters or so treating them that they cannot 

 support mosquito wriggler life means elimination of the mosquito pest. 



2. Since adult mosquitoes fly some distance, the area over which 

 mosquito work is done must be large enough to prevent migration of 

 adult mosquitoes from invalidating mosquito work in that area. 



3. Since adult mosquitoes fly over a range of from a few hundred 

 feet to forty miles or more, the species of mosquitoes composing the 

 fauna of the region where mosquito protection is desired must be known 

 in order that the necessary size of the area to prevent serious flights 

 may be determined. 



4. Since the benefits of mosquito control work are generally dis- 

 tributed among all the people of the protected area, it should be 

 financed from public funds and the burden of the elimination of mos- 

 quito-breeding places not placed on the individual property holder on 

 whose place the particular breeding spots have been situated by nature. 



The property owner whose holdings have been damaged should be 

 adequately compensated. 



5. Since the prosecution of mosquito control work is properly a 

 public function and supported by public funds, the public organization 

 must have the right of entry and the performance of necessary work on 

 private property. 



6. Since it is logical that mosquito works should be financed from 

 public funds, the individual has no right to tolerate any condition on 

 his property that will create additional mosquito-breeding places or 



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