What's eating my spiraea prunifolia?

Bridalwreath spirea is a tough, largely trouble-free shrub. Aphids are the most frequent visitor, targeting soft new growth in spring. Spider mites cause bronzing in dry summers, and scale insects may encrust older stems. Leafroller caterpillars occasionally roll leaf tips. Good cultural care keeps all these pests below damaging thresholds.

Soft colonies on spring shoot tips lead to curled, yellowed leaves and sticky honeydew residue. Blast off with a water jet; use insecticidal soap spray; avoid excessive nitrogen feed that promotes lush, aphid-attractive growth.

Tiny pests cause stippled, bronze-tinged leaves; fine webs visible at branch joints; leaves may drop early in heavy infestations. Water plant during dry spells; mist foliage; apply insecticidal soap to undersides of leaves; miticide for severe cases.

Brown or white waxy bumps on stems; yellowing leaves; sticky honeydew and sooty mould on foliage below infested wood. Scrape off with a soft brush; apply horticultural oil or insecticidal soap; prune out heavily encrusted stems.