8oo CONNECTICUT EXPERIMENT STATION REPORT, 1907-I908. 



MOSQUITO WORK IN 1908. 



In April, a request was received from Dr. John B. McCook 

 of Hartford, Surgeon of the First Regiment, Organized Militia, 

 State of Connecticut, for a report regarding the breeding of 

 Anopheles in the vicinity of the state rifle range in East Haven. 

 Though this territory was examined in a general way in 1904, and 

 nothing was found there, it was thought best to make another 

 survey of the place, as plans had been made for the regiment to 

 be in camp there for a week in July. 



Mr. Walden visited the place on June 24th, and not finding 

 any serious mosquito breeding-places, a report to this effect was 

 sent to Dr. McODok. Afterward Dr. McCook furnished us a 

 blue print map of the region, and Mr. Walden again visited the 

 range in order to locate more definitely some of the pools. Thus 

 the more important features were mapped and numbered, and 

 explanatory notes were sent to Dr. McCook under date of August 

 13th. Following is Mr. Walden's report: 



The Mosquito Breeding Problem at the State 

 Rifle Range, East Haven, Conn. 



The state rifle range at East Haven was examined June 24th 

 and again August 12th, for mosquito breeding-places. At the 

 first examination no mosquito larvae were found, but on the 

 second date both Anopheles and Culex larvae were found in two 

 places. In a dry season the range is fairly safe from mosquito 

 breeding, but there are several low areas which in wet seasons 

 would hold water long enough for mosquitoes to breed. 



During the warm part of the season only about a week is 

 required for mosquitoes to develop from the egg to the adult. 

 Therefore, any place that will hold water for a week or more is 

 liable to breed mosquitoes, and as Anopheles, the malarial mos- 

 quito, may breed in any place where other mosquitoes breed, it 

 is important that these low areas should be drained. This is a 

 comparatively simple problem. The Farm River, a large stream 

 well stocked with fish, runs lengthwise of the range, and the low 

 places can be drained by running simple open ditches to the river. 

 On the accompanying map the necessary ditches have been indi- 

 cated. Ditches eighteen inches wide and fifteen inches deep at 

 the point farthest from the river will furnish ample drainage. 



