Diseases

We recommend that you use Tree Stac where pruning is required.

Blackspot
Remove all affected foliage from plant and off the ground. DO NOT put this waste on the compost heap. Spray plant and surrounding ground with an appropriate fungicide.

Citrus Gall Wasp
This wasp lays eggs in Spring on citrus trees. The larvae tunnel through stems forming swellings or galls. Remove any stems affected, cutting well below the swelling, cover the wound with Tree Stac and burn before August to prevent the new wasps emerging.

Collar Rot
Cut away all decayed bark and wood. Cover the wound with Tree Stac.

Dieback
Damaged stems should be cut off below the affected area and above a leaf bud. When pruning make sure to use a clean secateurs and in between cuts clean the secateurs with methylated spirit. Cover wounds with Tree Stac.

Frost Burn
If a plant is showing signs of being burnt by frost, do not prune affected growth. Leave damaged foliage as it protects underlying growth from further damage. Prune once frosts are finished and cover all wounds with Tree Stac.

Leaf Gall
Developing flowers and leaves are thickened, fleshy and pale green. Remove and destroy all affected parts.

Melanose of Citrus
Frequently prune off and destroy any dead twigs or branches. Make sure to keep the ground under the tree free of dead leaves and twigs and cover all wounds with Tree Stac.

Shot Hole of Stone Fruit
Prune off and destroy infected fruit and twigs. Cover all wounds with Tree Stac and destroy fallen leaves from infected trees.