| Have heard this type of oregano can eliminate earwigs. Live in Zone 5a, have seen it on an American site however they don't ship outside of US. Is there a Canadian supplier that I could purchase some to try it. |
| Richters Herbs http://www.richters.com/ offers Cuban oregano (Plectranthus sp.) in Canada as well as the US although they do not indicate it is effective against earwigs. Perhaps it will work for you. |
