EXPERIMENT STATION REPORTS. 



221 



where many canniug peas are growu, on about Decoration Day. Fur- 

 thermore, no corrections were made for the influence of large bodies of 

 water. 



It is interesting to note that on the 22nd of May the pea-louse was 



Fig. 2 — Healthy pea pod compared with one injured by pea-louse 



Fig. 3 — Green pea-louse killed by fungus disease Empusa aphidis on pea 



