I found the lime sulfur a few years ago in the garden department of
a Lowes."
Marilyn, Do you remember the name of any products containing lime
sulfur? I tried to obtain it by that name in my local Lowe’s
yesterday. No product was named “Lime Sulfur”, and the clerk and I
could not find it on the ingredients list of any product listed as
having fungicidal properties. We did find an Ortho product listed as
containing “sulfur” as its active ingredient.
In a video about PMC, Tim McCreight warns that LOS can be ruined by
exposure to light, or even by frequent opening of its container,
which I suppose is due to exposure to humid lab air and to light. He
says that when he gets a fresh supply, he divides it into very small
portions that he stores in the black plastic vials in which some
brands of film are sold. Packed this way, it can survive years on
the shelf, and only the small quantity in a single vial is at risk
during use.
Dian Deevey