382 OHIO EXPERIMENT STATION: BULLETIN 332 



PLATE XXVI 



THE ELM LEAF BEETLE 



(Galerucella luteola) 



Fig. 1. English elms, Dayton, Ohio, defoliated by the leaf beetle. 



Fig. 2. English elms, on the opposite side of the street from those of 

 Fig. 1. These trees were protected by spraying at the proper time with arsen- 

 ate of lead. 



