Pest identification
What's eating my himalayan yew?
Taxus Mealybug (Dysmicoccus wistariae)
Signs: Waxy white clusters in stem joints and needle bases; sooty mold and weak growth
Control: Remove with rubbing alcohol or cotton swab; apply neem oil or insecticidal soap spray
Taxus Scale (Parthenolecanium pomeranicum)
Signs: Rounded brown bumps on bark; yellowing foliage and dieback on infested branches
Control: Dormant oil application in late winter; remove heavily infested branches
Deer / Livestock
Signs: Browsed foliage and bark stripping; yew is toxic to horses and cattle yet they still eat it if available
Control: Fencing is essential where livestock are present; this is a critical safety issue, not just a plant protection issue
Black Vine Weevil (Otiorhynchus sulcatus)
Signs: Notched leaf margins; larval root damage causes wilting and plant death
Control: Beneficial nematodes applied to moist soil late summer; sticky barriers on stems
Keep himalayan yew pest-free
Healthy plants resist pests best. Get the basics right:
Himalayan Yew pests — FAQ
What is eating my himalayan yew?
Himalayan Yew is attacked by taxus mealybug and scale insects on its stems and foliage. Deer and livestock pose a significant threat in garden and estate settings. Vine weevil larvae can damage roots. This slow-growing conifer is particularly vulnerable because damage accumulates before symptoms become obvious.
How do I get rid of taxus mealybug (dysmicoccus wistariae) on himalayan yew?
Waxy white clusters in stem joints and needle bases; sooty mold and weak growth Remove with rubbing alcohol or cotton swab; apply neem oil or insecticidal soap spray
How do I get rid of taxus scale (parthenolecanium pomeranicum) on himalayan yew?
Rounded brown bumps on bark; yellowing foliage and dieback on infested branches Dormant oil application in late winter; remove heavily infested branches
How do I get rid of deer / livestock on himalayan yew?
Browsed foliage and bark stripping; yew is toxic to horses and cattle yet they still eat it if available Fencing is essential where livestock are present; this is a critical safety issue, not just a plant protection issue
How do I get rid of black vine weevil (otiorhynchus sulcatus) on himalayan yew?
Notched leaf margins; larval root damage causes wilting and plant death Beneficial nematodes applied to moist soil late summer; sticky barriers on stems