1915 



ENTOMOLOGICAL SOCIETY. 



99 



As a result of these experimeiits, Mr. W. D. Jackson, the District Eepresenta- 

 tive of the Ontario Department of Agriculture for Carleton County arranged to 

 supply bran, molasses, Paris green and lemons — sufficient to treat 400 acres — ■ to 

 the farmers in the immediate district where the locusts were abundant. On June 

 30, accompanied by Mr. Jackson and his assistant Mr. Waterman, five farms were 

 visited where it had been decided to apply the mixture. At this time the locusts 

 were mostly in the winged condition although a number were still in the hopping 

 stage. Within a week after the application counts were made diagonally across 

 oat fields, etc., and these gave from 13 to 124 dead locusts to the square yard, the 

 average being 57. The farmers of the district reported later that they were well 

 pleased with the results of the experiment. 



In addition to the Bowesville experiment at our request the Eev. J. I. Trudel 

 and Rev. E. Fusey arranged to treat fields in their parishes, St. Etienne de Ores, 



Fig. 19. — Corn Field, Bowesville, Out., devastated by Lesser Migratory Locust. 



(Original). 



and Valmont, Quebec, and in this Province even better results were obtained with 

 the Kansas formula. Some farmers used lemons, and some oranges, and a stronger 

 strength of Paris green was used, viz., li/^ lbs. to the 30 lbs. of bran. The Eev. 

 J, I. Trudel reports that eight days after the poisoned bran was broadcasted counts 

 were made in various fields and these gave from 900 to 1,200 dead locusts to the 

 square yard. These results are certainly very remarkable. At the time of the 

 applications the locusts had their wings and were migrating from one place to 

 another. 



In treating large areas with such a mixture, it is of the utmost importance 

 in order to secure the results desired — that is the destruction of a very large per- 

 centage of the locusts — to make the applications while the insects are in the 

 hopping stage and before they begin to migrate. Flarmers should make special 

 arrangements to co-operate and apply the mixture at the same time. This was 

 done in Kansas and, as a result, from 60 per cent, to SO per cent, of the insects 

 were destroyed. Prof. Dean states: "The remaining grasshoppers were so left to 

 the mercy of the parasitic and prf^daceous enemies that only a few of fhom oac-rippd." 



