22 N. J. Mosquito Extermination Association 



duced in the legislature, which requires a permit from the State 

 Board of Health before chemical factories can locate on any 

 watershed. They also have seen the danger to the water supi- 

 plies of the increasing number of chemical factories which are 

 being located in the northeastern part of New Jersey. 



PIrEsidiKnt Brinkerho:^f — The next report in our sympo'sium 

 ^ is from Monmouth County, by Mr. Harry G. Van Note. 



Progress in Mosquito Work in Monmouth County 



BY HARRY G. VAN NOTE, OAKHURST, N. J. 



The Monmouth County Mosquito Extermination Commission 

 has confined its attention to the control of the salt-marsh mo- 

 squito and to superintending the locally-supported work in the 

 few fresh-water districts adjacent thereto. 



The practical work began in the year of 191 5 with an appro- 

 priation of $6,000. Previous to the first year of the commis- 

 sion's activities, the state had cut a large amount of ditching on 

 the various marshes in the county. In addition to the state work, 

 about 2,046 feet of new ditching was cut in the salt meadows 

 along the shores of the north and south branches of the Shrews- 

 bury River, this work being financed by private capital. 



In the year of 191 5 the funds were devoted to the cleaning 

 and recutting of old ditches. In 19 16 and 191 7 the old ditches 

 were kept in shape and a considerable amount of new ditching 

 was put in. At the present time it is estimated that the necessary 

 ditching, with the exception of about 20,000 feet, has been cut. 



The commission anticipated at the outset of the season of 191 7 

 that better results in mosquito control would be had than ever 

 before, but the unusual rainfall prolonged during the month of 

 June and early July brought about some considerable emergen- 

 ces. Although several small broods emerged from places on the 

 salt-marsh meadows which had been previously thought to be 

 sufficiently drained, the fresh-water areas suffered most. The 

 conditions on the salt-marsh areas were remedied as soon as 

 possible and the season finished with a fair degree of immunity 

 from the salt-marsh species. 



While the present appropriation of $6,000 has not been enough 

 to permit the commission to care for more than salt marsh ade- 



