Pest identification
What's eating my agave utahensis?
Mealybugs
Signs: White cottony wax in leaf crevices; sticky honeydew dripping from leaves; tissue yellows and shrivels if infestation is heavy
Control: Remove with alcohol-soaked cotton swabs; spray with neem oil or insecticidal soap; isolate the plant and repeat every week until clear
Scale insects
Signs: Hard brown bumps adhering to leaf surfaces; yellowing and loss of vigour; sooty mould on honeydew deposits
Control: Scrape off manually; wipe with 70% isopropyl alcohol; follow up with neem oil or horticultural oil spray
Agave snout weevil (Scyphophorus acupunctatus)
Signs: Sudden collapse of the growing centre; slimy rot at the base; larvae visible inside decaying tissue
Control: Destroy affected plants immediately; apply imidacloprid drench preventively in spring if plants are kept outdoors
Keep agave utahensis pest-free
Healthy plants resist pests best. Get the basics right:
Agave utahensis pests — FAQ
What is eating my agave utahensis?
Agave utahensis is a tough, cold-hardy agave seldom bothered indoors. Mealybugs are the most common nuisance on potted plants, hiding in tight leaf axils. Scale insects occasionally attach to leaves. The agave snout weevil poses the greatest danger if plants are moved outdoors in summer.
How do I get rid of mealybugs on agave utahensis?
White cottony wax in leaf crevices; sticky honeydew dripping from leaves; tissue yellows and shrivels if infestation is heavy Remove with alcohol-soaked cotton swabs; spray with neem oil or insecticidal soap; isolate the plant and repeat every week until clear
How do I get rid of scale insects on agave utahensis?
Hard brown bumps adhering to leaf surfaces; yellowing and loss of vigour; sooty mould on honeydew deposits Scrape off manually; wipe with 70% isopropyl alcohol; follow up with neem oil or horticultural oil spray
How do I get rid of agave snout weevil (scyphophorus acupunctatus) on agave utahensis?
Sudden collapse of the growing centre; slimy rot at the base; larvae visible inside decaying tissue Destroy affected plants immediately; apply imidacloprid drench preventively in spring if plants are kept outdoors