Watch out for

Pine shoot moth: Apply a systemic insecticide in early spring when new growth emerges to target larvae.

Conifer aphid: Spray with a suitable insecticide or use horticultural oil during the growing season.

Needle cast disease: Improve air circulation and apply a fungicide in spring before new growth expands.

Honey fungus: Ensure well-drained soil and remove infected plants to prevent spread to nearby trees.

Sawfly larvae: Hand-pick larvae or apply an insecticide if infestation levels are high.