124 FUMIGATION METHODS 
8. Never puddle the roots of trees before they are 
fumigated. 
g. 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. 
11. 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 0.18 gramme cyanide 
per cubic foot. Better use 0.16 gramme. 
13. Never fumigate buds, grafts, or scions with gas 
stronger than 0.16 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.’’ 
16. 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. 
18. 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. 
