EEMEDIAL MEASURES. 



87 



danger of staining the fruit with spray applications made much later 

 than the middle of July is an additional reason for making the second 

 application not later than that date. 



Nearly every season since spraying grapevines with a poison has 

 become a practice there has been more or less rumor concerning ill- 

 ness of persons by poisoning resulting from the eating of sprayed 

 grapes. We have given considerable attention to looking up reports 

 of this nature but have never been able to secure direct evidence of 

 poisoning of persons in this manner. From our observations and 



Fig. oO. — Young grapevine sprayed with arsenate of lead against the beetles of the grape root-worm. 

 North East, Pa., 1909. (Original.) 



experiments with poison sprays against the grape root-worm beetle 

 and all other insect pests known to us at present in vineyards in the 

 Lake Erie Valley, all applications should be made in normal seasons 

 not later than the middle of July, and in exceptionally late seasons 

 like that of 1907 not later than July 25. If vineyardists will en- 

 deavor to make their last poison application before that date they 

 need have no fear of either staining their fruit or creating cause 

 for rumor of poisoning by persons consuming the same and also 

 may feel assured that they have made the applications at a period 

 when they will prove most effective in the control of this pest. 



