you have to ask the question....by whose rules?....import to Canada by the receivee, or Export from Africa by the sender?
Serious answer is each country has a list of approved imports. You can find this list on the USDA website for the USA. I don't think it much matters what you are exporting (unless it is within a money-laundering operation). Now, this is for the US and I would assume each independant country would have similar laws to protect their ecosystems.