I have been using the ferric phosphate for a couple of years, along with physical barriers, (crushed nut shells, broken roasted pumpkin seed husks), and we still have frogs in our garden.
@mespilus started
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I have been using the ferric phosphate for a couple of years,
along with physical barriers, (crushed nut shells, broken roasted pumpkin seed husks),
and we still have frogs in our garden.