Medo Pruning Compound is used to create a flexible but waterproof seal over the cuts caused by pruning or other accidental damage to your trees. This seal protects the tree until it produces its own natural callus.
Medo Pruning Compound is also effective when you need to protect wounds in winter where frost is imminent.
Trees form a natural callus by growing bark over clean cuts and accidental wounds - this process is obvious on any tree which has had surgery a few years ago.
However, before the callus grow, any cut is a potential point of entry for disease or fungal attack. The major threats here are:
Re-apply annually until the bark has regrown.
You can buy more garden fertilisers & chemicals here.