98 



PAPERS OX CEREAL AXD FORAGE INSECTS. 



which began blooming during and after' the last week in June were 

 decidedly the most severely attacked. 



Figure 36 shows similar data on all varieties in full bloom at anv 

 given time, besides very clearly showing that such varieties as were 

 in full bloom between the first and last weeks of July were the most 

 severely attacked. 



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Fig. 35. — Diagram showing maximum and m in imum damage done by the legume pod moth to varieties 

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



Figure 37 shows similar data on all A~arieties which ceased bloom- 

 ing on any given date, and indicates that such varieties as had 

 ceased blooming before the middle of July were only slightly damaged. 



As the time the plants are in full bloom is very evidently of the 

 greatest significance, Table II and figure 38 were arranged to show 

 the mean percentage of damage done to all varieties in full bloom 

 at any given time, which indicates very conclusively that varieties 

 which were in full bloom from the 1st to the middle of July are by 

 far the worst damaged by the legume pod moth. 



