New York Agricultural Experiment Station. 307 



(6) The destruction of the hibernating places by removing 

 dead grass, leaves, bushes and rubbish assists greatly in reducing 

 injuries by the grape leaf-hoppers and during ordinary seasons 

 this measure alone will hold the pest in check. During seasons 

 when the insects are superabundant, the grower should supplement 

 this practice by spraying. 



(7) Delaying the removal of the shoots at the base of the 

 vine, " suckering," until just previous to spraying has helped to 

 protect the more permanent foliage and thus aided the maturing 

 of the fruit. 



