3^8 AGRICULTURAL EXPERIMENT STATION. ' 



The stretch between the County Road and Paterson Avenue is 

 called Tyler Park, and in this are two islands or knolls, sur- 

 rounded by a number of bad breeding places. To drain these, 

 ditches must be cut through the cat-tails into Penhorn Creek. 

 The remainder of the area is swampy and sO' densely overgrown 

 with cat-tails that it is difficult to force a way through. No 

 breeding places other than around the knolls were found. The 

 stretch between Paterson Avenue and Granton is about three 

 and one-half miles in length and about half a mile wnde. Over 

 this entire stretch not a mosc|uito larva was found except in the 

 ditches along the New York, Susquehanna and Western and 

 Northern Railroad of New Jersey Railroads. These ditches are 

 fresh water and breed neither sollicitans nor cantator; the larvse 

 found there were territans, and it is probable that Anopheles will 

 be found during the latter part of the season. 



These are the larger areas that were explored and the fifth 

 may be ignored as a source of supply to Jersey City. The fourth 

 requires very little and is not a source of very heavy supply un- 

 der ordinary conditions. 



There are several other places, however, that do- need atten- 

 tion though covering only a limited area. One is a small pond 

 at Bergen Point, formed in a depression between three streets 

 and a ridge of high ground. In this pond were great numbers 

 of Culex canadensis and Psorophora larvae and probably, late in 

 the season, other species will breed there. Practically the only 

 thing that can be done here is to use the place as a dump and fill 

 it gradually. 



Things were found to be pretty bad at Constable Hook. 

 There were quite a number of breeding places and all the larvae 

 taken were sollicitans. This place can be readily drained into 

 natural creeks, the Kill von Kull and New York Bay. Mr. 

 Brehme comments : "At the time I inspected this area the pools 

 were covered with full-grown laiwse and some pupae. This place 

 is near a thickly-settled part of the city of Bayonne, and the in- 

 habitants must suffer greatly here. The work will be easy and 

 it will require only a little amount of money to clean this pest 

 hole." 



Another place, belonging to Greenville, was found on the north 

 side of the Morris Canal. This bred fresh water species only at 

 the date of examination and is probably safe from the salt water 

 forms at all times. It can be drained into the Morris Canal, but 

 that is such a poor place to use for drainage that filling would be 

 much more satisfactory. 



