186 Annals Entomological Society of America [Vol. IV, 



DISCUSSION. 



A Member: I should like to ask if it is possible to use the 

 spraying that is applied for curculio to kill the slug, or whether 

 the slug works so late in the season that poison applied for the 

 curculio would be washed from the leaves. 



Mr. Webster: The spraying should be done about the 

 middle of June in central Iowa. I am not familiar enough with 

 the curculio to say whether this spraying would affect it or not. 



A Member: It would be too late to arrest the curculio. 



Dr. Howard: I regret that I did not hear all of the paper. 

 I should like to ask about the affect of a strong stream of water 

 on the slugs, without any insecticide at all. 



Mr. Webster: I did not try that. 



Dr. Howard : In city yards a strong stream of water from 

 a hose can be used to wash off the slugs. This method has been 

 tried and given good results. 



