1918 ENTOMOLOGICAL SOCIETY. 51 



About one and one-half millions of people live within the borders of these 

 six counties. 



That part of the southern end of New Jersey included in the counties of Ocean, 

 Burlington, Atlantic, Cape May, and Cumberland have more than 100 miles of 

 fine sand beach nearly all of which might be developed into delightful seaside 

 communities, and 1,700,000 acres of farmland of which about one million are 

 totally undeveloped. 



A large part of this territory is covered at times during the summer with dense 

 hroods of salt marsh mosquitoes. 



Seaside communities build slowly and undeveloped lands are tardily improved 

 under such conditions. 



There are about 296,000 acres of salt marsh in the State of New Jersey, of 

 Tvhich probably 200,000 are potentially good salt hay land. The drainage necessary 

 to control the salt marsh mosquito seems after its effect is felt to increase the hay 

 yield from about .7 of a ton to 2.6 tons per acre. 



While New Jersey was one of the first states to become interested in the 

 problem of mosquito control from the standpoint of human comfort and prosperity, 

 she is certain not to be the last, because there are about 6,400,000 acres of tidal 

 marsh in the United States alone, and the mosquito-borne disease of malaria is now 

 recognized as the great, but by no means immovable, bar to the development of 

 immense areas in our Southern states. 



In view of the apparent certainty of a rapidly increasing interest in the elimin- 

 ation of all species of mosquitoes as a means of contributing to human comfort and 

 prosperity, the present paper is an outline 'of procedure that may be followed in 

 attacking the problem in any specified locality. 



To the man not familiar with the nature of insects, anti-mosquito work means 

 mosquito extermination. This misconception leads the professional worker into 

 much trouble because the people whom he is trying to serve demand year by year 

 greater and greater freedom and cannot understand why at times they are troubled. 



At the present stage of anti-mosquito work only the problem of control can 

 be considered and that of extermination must be relegated entirely to the future. 

 The object of mosquito control is to reduce the fauna to a point where diseases 

 carried by it do not occur and the householder is unaware of its existence. 



The problem of bringing the mosquitoes of any badly infested locality under 

 control involves : ( 1 ) A careful and thorough analysis of the mosquito fauna both 

 in larval and adult form for at least one entire season ; two or three would be more 

 conclusive; (2) a careful study of the reasonably permanent breeding places from 

 which the adults come, followed by the preparation of a detailed plan showing the 

 methods and the cost of eliminating them; (3) the obtaining' of funds with which 

 to do the work; (4) the execution of the plans and the completion of the initial 

 work; (5) maintenance, temporary elimination, and improvement; (6) giving the 

 work a permanent character; (7) evaluation of the results of mosquito control. 



Analysis of the Mosquito Fauna. 



In planning for future anti-mosquito work the mosquito survey usually means 

 an examination of the territory for places which past experience has indicated as 

 likely to breed and for such places as show breeding at the time of inspection. Un- 

 fortunately for this simple procedure, experience has shown that the area may be 

 far more severely infested by mosquitoes which breed outside its limits than by 

 the species that are produced locally. This is well illustrated in New Jersey by all 



