124 FUMIGATION METHODS 



8. Never puddle the roots of trees before they are 

 fumigated. 



9. Never fumigate cedars and evergreen trees, 

 unless there is some special reason for it. 



10. Never fumigate trees until the wood is well 

 matured and the buds are thoroughly dormant. 



1 1 . Never fumigate trees after the buds have begun 

 to open in the spring. 



12. Never fumigate June buds and peach under 

 three feet with gas stronger than o. 18 gramme cyanide 

 per cubic foot. Better use o. 16 gramme. 



13. Never fumigate buds, grafts, or scions with gas 

 stronger than o. 16 gramme. 



14. Never leave the cyanide can where children 

 can reach it. 



15. Never let the cyanide can be without a con- 

 spicuous label, " Poison." 



1 6. Never leave the cyanide exposed to air. It 

 will absorb moisture and be ruined. 



17. Never take a bag of cyanide out of a can 

 unless you are all ready to use it. 



1 8. Never leave the door of the fumigating room 

 open a moment after the cyanide has been dropped in 

 the jar. 



19. Never allow a person to go near or open the 

 door when fumigating trees or anything else. 



20. Never allow anybody to enter a room under 

 ten to fifteen minutes after the door and ventilators 

 are open. 



21. Never empty residue of jar where children 

 would play in it. 



22. Never allow residue to remain long in the jar. 



