Growing Success Prune & Seal is a natural , waterproof, ready-to-use brush-on pruning agent made from latex compounds and clay minerals. It seals exposed wood from , damp, frost and harmful bacteria, allowing sufficient time for the tree to produce its own natural callus. It can be used on all fruit and ornamental trees. Allows the tree or shrub to form its own natural callus. After applying, leave to dry and this will create an elastic coat that protects against damp, frost and harmful bacteria. This promotes healing and camouflages damage How to Use Prune & Seal should be used on a dry day when frost is not expected Clean the pruning wound before use Shake the bottle well Remove cap and squeeze bottle sufficiently to allow the pruning agent to disperse evenly onto the brush head Brush in a clockwise direction and repeat as necessary until the cut surface is completely sealed Allow to dry and apply a second coat Replace cap after use and store in a col dry frost-free place away from children, pets and foodstuffs, tightly closed in the original container