Pest identification
What's eating my physocarpus opulifolius 'center glow'?
Aphids
Signs: Sticky honeydew on leaves, curled or distorted shoot tips, and sooty mold on stems.
Control: Blast off with water; spray with insecticidal soap; introduce beneficial insects such as parasitic wasps.
Leaf-feeding beetles (e.g. four-lined plant bug)
Signs: Small, round, sunken spots or ragged holes in leaves; damage is mainly cosmetic.
Control: Hand-pick adults and egg masses; insecticidal soap or pyrethrin spray for heavy infestations.
Deer
Signs: Browsing of young foliage and stems; plants in unfenced gardens lose new growth repeatedly.
Control: Physical fencing or wire guards on young plants; apply deer-repellent sprays around the shrub perimeter.
Keep physocarpus opulifolius 'center glow' pest-free
Healthy plants resist pests best. Get the basics right:
Physocarpus opulifolius 'Center Glow' pests — FAQ
What is eating my physocarpus opulifolius 'center glow'?
Ninebark 'Center Glow' is a tough, largely pest-resistant shrub. Aphids are the most frequent visitor, gathering on tender new growth in spring. Powdery mildew-loving aphid colonies can also attract secondary issues. The ornate foliage occasionally attracts leaf-feeding beetles. Overall it needs minimal intervention; good airflow is the best defense.
How do I get rid of aphids on physocarpus opulifolius 'center glow'?
Sticky honeydew on leaves, curled or distorted shoot tips, and sooty mold on stems. Blast off with water; spray with insecticidal soap; introduce beneficial insects such as parasitic wasps.
How do I get rid of leaf-feeding beetles (e.g. four-lined plant bug) on physocarpus opulifolius 'center glow'?
Small, round, sunken spots or ragged holes in leaves; damage is mainly cosmetic. Hand-pick adults and egg masses; insecticidal soap or pyrethrin spray for heavy infestations.
How do I get rid of deer on physocarpus opulifolius 'center glow'?
Browsing of young foliage and stems; plants in unfenced gardens lose new growth repeatedly. Physical fencing or wire guards on young plants; apply deer-repellent sprays around the shrub perimeter.