MISCELLANEOUS NOTES ON ECONOMIC WORK 67 



way; a list is pul)lished elsewhere in this report. The opportunity 

 was also given in 1916 to conduct an anti-mosquito campaign for 

 the Minneapolis Real Estate Board, which proved very successful 

 and is resulting in a more extensive campaign of the same sort 

 planned for the summer of 1917, coupled with an anti-fly campaign. 

 This information about mosquitoes will not be of use to cities alone, 

 for they are one of the serious pests of stock, although often over- 

 looked as such. In 1915 they were so numerous as to be one of the 

 principal causes for a decrease in the milk flow of dairy cattle. 



An important pest of the household is the cockroach. So far 

 no really satisfactory, quick-working- remedy which could be used 

 b}' any housewife has been suggested. We are now at work per- 

 fecting a remedy which promises to be quickly and completely 

 effective. 



Several other insects have come under oitr attention, but owing 

 to lack of assistance and funds it has not been possible to take them 

 up as definite problems for investigation, such as our local ticks, 

 sand flies (Simuliidae), weevils found in grain and dried cereals, 

 carpet beetles, clothes-moths, lice upon cattle, etc. 



