REPORT OF THE STATE ENTOMOLOGIST I915 63 



These considerations, we believe, justify giving special attention to 

 methods of destroying the young grasshoppers, even if it be neces- 

 sary to distribute bait or spray with a dilute poison two or three 

 times in order to accomplish the desired end. 



The work of last year and that of the past season have abundantly 

 demonstrated the practicability of killing the full-grown grasshoppers 

 by the use of the Kansas bait, directions for the preparation of which 

 are given above. If for any reason it is impossible to check the 

 pests while young, the best we can advise is systematic and thorough 

 distribution of a poisoned bait, making, if necessary, several appli- 

 cations in order to prevent serious damage. We are still of the 

 opinion that grasshoppers are sufficiently local in habit so that 

 the inaction or refusal to cooperate on the part of one or more will 

 not as a rule seriously mitigate the benefits accruing to those who make 

 timely applications of the poison, though, there is no question that 

 hearty cooperation of all in regions subject to grasshopper invasion 

 is highly desirable. 



MOSQUITO STUDIES 



The region in and about Sodus bay presents peculiar conditions, 

 in that there are within 3 miles of Sodus Point, as shown by surveys 

 made by the Pennsylvania Railroad, about 220 acres of practically 

 lake-level swamp, some 60 of these being in the immediate vicinity 

 of the village. There has been more or less trouble from mosquitoes 

 for some years, and in September 19 14 the Entomologist was called 

 into consultation by the Sodus Bay Improvement Association. A 

 preliminary survey was made which resulted later in practical field 

 work during June, July and August of the past season. 



On the recommendation of the Entomologist, Mr H. H. Stage 

 of Crittenden was engaged to do the actual field work, the Ento- 

 mologist, owing to the peculiar conditions obtaining, directing and 

 supervising. The undertaking was primarily practical in nature, 

 though it was deemed advisable to secure accurate biological data in 

 regard to the more annoying forms at least, since knowledge of this 

 kind is necessary if the best results are to be secured, consequently 

 Mr Stage was directed to familiarize himself thoroughly with the 

 entire section and to make systematic collections in typical localities 

 as well as to watch for the appearance of large numbers of larvae and 

 see that they were destroyed by an application of oil before it was 

 possible for them to mature. 



The relation existing between the lake and the swamp made it 

 impractical to attempt draining, and the large area of lowland 

 rendered filling out of the question because of the expense involved. 



