Growli

Pest identification

What's eating my yellow azalea?

Vine weevil (Otiorhynchus sulcatus)

Signs: Notched leaf margins; root-feeding grubs cause wilting and plant death, especially in container-grown specimens

Control: Apply Steinernema kraussei nematodes August–October; use physical traps and check root zones at repotting

Rhododendron leafhopper (Graphocephala fennahi)

Signs: Leaf stippling; eggs laid into flower buds introduce bud blast fungus — buds blacken and fail to open

Control: Pick off and bin blasted buds in winter; spray pyrethrin in August to catch adults before egg-laying

Rhododendron lace bug (Stephanitis rhododendri)

Signs: Upper foliage mottled pale yellow; brown sticky deposits visible on leaf undersides

Control: Neem oil or insecticidal soap targeting undersides; avoid dry, hot, exposed positions where lace bugs thrive

Deer and rabbits

Signs: Browsed shoots and flower buds; rabbits strip bark from the base of young stems

Control: Rabbit spiral guards on young plants; deer repellent spray in autumn and winter; fencing where deer pressure is high

Keep yellow azalea pest-free

Healthy plants resist pests best. Get the basics right:

Yellow Azalea pests — FAQ

What is eating my yellow azalea?

Yellow Azalea (Rhododendron luteum) is attacked by vine weevil, rhododendron leafhopper spreading bud blast, and lace bugs that bleach foliage. As a deciduous azalea often in open garden settings, deer and rabbits also browse it. Vine weevil is the most damaging pest; bud blast can ruin the prized fragrant flower display.

How do I get rid of vine weevil (otiorhynchus sulcatus) on yellow azalea?

Notched leaf margins; root-feeding grubs cause wilting and plant death, especially in container-grown specimens Apply Steinernema kraussei nematodes August–October; use physical traps and check root zones at repotting

How do I get rid of rhododendron leafhopper (graphocephala fennahi) on yellow azalea?

Leaf stippling; eggs laid into flower buds introduce bud blast fungus — buds blacken and fail to open Pick off and bin blasted buds in winter; spray pyrethrin in August to catch adults before egg-laying

How do I get rid of rhododendron lace bug (stephanitis rhododendri) on yellow azalea?

Upper foliage mottled pale yellow; brown sticky deposits visible on leaf undersides Neem oil or insecticidal soap targeting undersides; avoid dry, hot, exposed positions where lace bugs thrive

How do I get rid of deer and rabbits on yellow azalea?

Browsed shoots and flower buds; rabbits strip bark from the base of young stems Rabbit spiral guards on young plants; deer repellent spray in autumn and winter; fencing where deer pressure is high