Pest identification
What's eating my yulan magnolia?
Horse chestnut scale (Pulvinaria regalis)
Signs: Cottony white masses on bark; minor dieback of stems in heavy infestations
Control: Horticultural oil spray in late winter; prune out very heavily infested small stems
Vine weevil (Otiorhynchus sulcatus)
Signs: Leaf notching from adults; root-feeding grubs cause wilting of young or pot-grown plants
Control: Nematode soil drench in late summer; check roots when transplanting
Slugs and snails
Signs: Ragged holes in young leaves and bark damage at the base of newly planted trees
Control: Iron phosphate pellets; mulch lightly and check underneath; hand-collect at dusk
Keep yulan magnolia pest-free
Healthy plants resist pests best. Get the basics right:
Yulan Magnolia pests — FAQ
What is eating my yulan magnolia?
Yulan Magnolia is largely trouble-free once established. Scale insects and aphids are the most likely insect pests. Young trees may suffer slug damage at the base and vine weevil root damage in containers. In rural areas, deer browse the low white blossoms and young foliage. Vigorous establishment is the best long-term defence.
How do I get rid of horse chestnut scale (pulvinaria regalis) on yulan magnolia?
Cottony white masses on bark; minor dieback of stems in heavy infestations Horticultural oil spray in late winter; prune out very heavily infested small stems
How do I get rid of vine weevil (otiorhynchus sulcatus) on yulan magnolia?
Leaf notching from adults; root-feeding grubs cause wilting of young or pot-grown plants Nematode soil drench in late summer; check roots when transplanting
How do I get rid of slugs and snails on yulan magnolia?
Ragged holes in young leaves and bark damage at the base of newly planted trees Iron phosphate pellets; mulch lightly and check underneath; hand-collect at dusk