Wild Garlic in Louisianas

     Wild Garlic has always been a problem here.  In most cases it is
manageable, but it is most severe in the Louisiana Irises.  When I try to
pull it out, some of the bulbs break off and thus remain in the soil, only
to grow again.  There is a limit as to how much digging I can do without
harming the Louisianas.  Is there a reliable way to prevent the Wild Garlic
from growing?  Are there any chemicals that can be used on Wild Garlic that
will not harm the Iris?  I think that my flower beds keep getting
"inoculated"  with weed seed from some neighbors' unkempt yards.  

Mark A. Cook  
macook@iglou.com
Lexington, KY USA Zone 6 (officially)
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