INSECTS AND DISEASE 
CONTROL OF MOSQUITO-BORNE DISEASE 
The control of mosquito-borne disease involves five principal 
measures: (1) the elimination of mosquito-breeding places, (2) the 
destruction of mosquito larvz in accumulations of water which can- 

Fig. 17. MOSQUITO-BREEDING NEW JERSEY MARSHLAND 
BEFORE DRAINAGE 

Fig. 18. SAME AREA SHOWN IN Fig. 17 AFTER DRAINAGE 
not be removed, (3) the destruction of adults, (4) the protection of 
human beings from access of mosquitoes, and (5) immunization and 
treatment by the use of quinine. 
