INSECTS INJURIOUS TO BEETS AND SPINACH 313 



Control. Where this pest occurs in small gardens it may be 

 controlled by picking and destroying the infested leaves, and 

 even in larger fields such a practice might prevent its increase 

 and consequent injury. Those insecticides which have been 

 tried as remedies seem to have had no effect. Deep plowing 

 and thorough harrowing of infested fields as soon as the crop can 

 be removed should greatly lessen injury the next year. As this 

 species seems to prefer spinach to beet, Dr. Chittenden has 

 suggested that spinach might be used as a trap crop in large 

 fields of sygar beets where the injury warranted such a measure. 



