12 BULLETIN 566, U. S. DEPARTMENT OF AGRICULTURE. 



Six flowerpot traps were placed near some dahlia plants through- 

 out the season. These gave good results; but they are valuable only 

 where the earwigs are scarce. They take care of the " crawl-in '- 

 after a garden has been treated with poisoned bait and contact spray. 



Sticky substance was applied around the porches of one house. 

 This is necessary only in extreme cases where no control measures 

 have been applied and adult earwigs are causing annoyance in the 

 houses. 



SUMMARY OF RECOMMENDATIONS FOR CONTROL. 



May 15 to June 15. 



Spread poisoned-bread bait broadcast over the lawns and gardens. 

 Select a warm evening about May 15 and apply the bait just before 

 dark. Give one or two more applications of this bait at intervals 

 of three or four nights. 



Spray plants which show signs of having been eaten, using <3 

 pounds of arsenate of lead to 50 gallons of water, and being very 

 careful to cover the young leaves with the spray. 



After Jtjly 1. 



If the earwig has not been controlled in the spring, spray at night 

 with a contact spray, covering the insects well as they crawl over 

 the grass and plants. Repeat every three nights until the numbers 

 are sufficiently reduced. 



To supplement the night spraying look for crevices where ear- 

 wigs commonly hide through the day. Squirt contact spray into 

 these cracks every other day. 



Place flowerpot traps every 10 or 12 feet along borders or near 

 vines. Remove earwigs from the traps each day by shaking the 

 excelsior over a pail of kerosene and water. 



ADDITIONAL COPIES 



OF THIS PUBLICATION MAY BE PROCURED FROM 



THE SUPERINTENDENT OF DOCUMENTS 



GOVERNMENT PRINTING OFFICE 



WASHINGTON, D. C. 



AT 



5 CENTS PER COPY 



V 



WASHINGTON : GOVERNMENT PRINTING OFFICE : 3917 



