100 



PAPEES ON CEREAL AND FOEAGE INSECTS. 



the fourth side by a clean cultivated orchard. The plats were 1 

 square rod in area, as they were the year before, and separated from 

 each other by strips of oats 1 yard wide. Two plats of each variety 

 were planted side by side. (See fig. 39.) Plate X shows a part of the 

 experimental plats used this season. The moths were not quite so 

 destructive this season as last, 2.5 per cent being the greatest damage 

 done to any variety this year, while in 1910 as high as 7.6 per cent 



70 



GO 



SO 



+.o 



ao 



2.0 



I o 



% 





Fig. 37. — Diagram showing maximum and minimum damage done by the legume pod moth to varieties 

 of peas which ceased to bloom on a given date in 1910. (Original.) 



of one variety was destroyed. However, the results obtained are as 

 conclusive as those recorded last year. 



Table III gives the data of this season's work and is self-explan- 

 atory. Table IV is arranged to show the mean percentage of damage 

 done to all plats which came into full bloom on any one date. Figure 

 40 graphically illustrates these results and very clearly shows that 

 varieties which were in full bloom prior to June 28 were practically 

 unmolested. 



