What's eating my dwarf blue rhododendron?

Dwarf blue rhododendron's compact, low-growing habit makes it especially vulnerable to slugs and vine weevils at ground level, alongside the lace bug affecting all rhododendrons. Deer and rabbits browse this small plant heavily in winter. Vigilant monitoring of the dense mounded foliage is key to catching infestations early.

Notched leaf margins from adult feeding; larvae destroy root systems. The dwarf, compact form is particularly popular as a pot plant, elevating larval root-feeding risk. Apply nematode biological control (Heterorhabditis spp.) to containers in late summer. Inspect soil or compost for white larvae. Use vine weevil-registered insecticide if populations are high.

Yellow stippling and bleaching of leaves with dark excrement on undersides. Low foliage close to ground makes inspection awkward. Spray undersides of foliage with insecticidal soap or pyrethroid in spring when nymphs first appear. Repeat in midsummer. Partial shade planting significantly lowers infestation risk.

Strip bark, nibble stems to ground level, and remove growing tips. Dwarf plants suffer disproportionately because the entire shrub is within easy reach. Protect individual plants with wire mesh guards, especially in autumn and winter. Use rabbit-repellent sprays as a supplementary deterrent. Fencing the bed is the most reliable long-term solution.