98 N. J. Mosquito Extermination Association 



area every eight days. During the season, 5,788 inspections were 

 made ; 355 violations were located and whatever breeding was found 

 was immediately oiled. Of the breeding found, 57 per cent was 

 Culex pipiens, 41 per cent Anopheles and 2 per cent Aedes. A total 

 of 3,308 gallons of oil were used. The maintenance crew in this 

 district consisted of 6 men and was employed from April 22 to 

 September i, 1918. This crew cleaned 448,834 feet of old ditches; 

 installed 24,436 feet of new ditches; trimmed 11,380 feet of pond 

 edges and recleaned 18,766 feet of ditches. Aside from the eradica- 

 tion work done by the commission itself, there were five instances of 

 voluntary extermination work carried on by, and at the expense of, 

 the owners themselves, at the instigation of the commission. 



So much for the work accomplished on the north shore in 1918. 

 Let us consider the south shore upland district, which comprises all 

 the upland territory in the county south of a line from, Floral Park 

 east to Mineola and thence to Plainview. Excepting for a limited 

 amount of oiling on the Rockaway Peninsula, no work had been done 

 in this territory previous to 1918. The bulk of our funds had been 

 used on the salt marsh in order to get that well under control, it 

 being imprudent, of course, to attempt any local fresh-water mos- 

 quito extermination in a territory adjacent to undrained salt marsh 

 because of the migratory characteristic of the soUicitans. In 1918, 

 however, the commission set aside a small sum for the organiza- 

 tion of the work in this district and appointed a district inspector. 

 This district inspector, with a laborer, regularly inspected and oiled 

 330 catch-basins in Lawrence, Cedarhurst, Inwood and Woodmere, 

 and 109 violations from Inwood to East Rockaway, using 1920 

 gallons of oil. Of the breeding found, 90 per cent was Culex pipiem, 

 9.5 per cent Aedes and 0.5 per cent Anopheles. 



During the season of 1919, the work on the north shore was car- 

 ried on in the same manner as in 19 18. The south shore upland 

 work was enlarged to cover the territory as far east as Freeport. 

 Throughout the county, 565 violations were located; 9,257 inspec- 

 tions were made; 13,651 gallons of oil were used; 10,100 feet of 

 pond edges were cleaned; 9 ponds were lowered at regular in- 

 tervals throughout the season; 19 swamps were drained; 12,174 

 feet of new ditches were installed ; 483,606 feet of old ditches were 

 cleaned ; and 8,000 feet of old ditches were recleaned. 



All these facts and figures are of no value unless they can be 

 tied to some statistics which will show their value and the most 

 convincing of these statistcis are those which reveal the decrease 



