Pest identification
What's eating my agave xylonacantha?
Mealybugs
Signs: Fluffy white wax deposits at leaf bases; honeydew and ant activity; leaves may yellow or wrinkle
Control: Dab with alcohol-soaked swabs; spray neem oil solution across all leaf surfaces; repeat weekly until no new colonies appear
Scale insects
Signs: Hard, fixed bumps on leaves; plant looks lacklustre; sooty mould on sticky honeydew
Control: Scrape scales off manually; follow with insecticidal soap or horticultural oil; repeat every 7-10 days
Agave snout weevil (Scyphophorus acupunctatus)
Signs: Abrupt collapse of central rosette; wet rot at crown; grubs found when plant is dug up
Control: No recovery once larvae are established — destroy the plant; apply systemic imidacloprid preventively to outdoor specimens in spring
Keep agave xylonacantha pest-free
Healthy plants resist pests best. Get the basics right:
Agave xylonacantha pests — FAQ
What is eating my agave xylonacantha?
Agave xylonacantha is a robust, spiny agave that rarely suffers from pests when grown indoors. Mealybugs are the likeliest houseplant pest, tucking into tight leaf bases. Scale insects can establish on the tough leaves. The agave snout weevil is the most destructive threat if the plant is kept outdoors.
How do I get rid of mealybugs on agave xylonacantha?
Fluffy white wax deposits at leaf bases; honeydew and ant activity; leaves may yellow or wrinkle Dab with alcohol-soaked swabs; spray neem oil solution across all leaf surfaces; repeat weekly until no new colonies appear
How do I get rid of scale insects on agave xylonacantha?
Hard, fixed bumps on leaves; plant looks lacklustre; sooty mould on sticky honeydew Scrape scales off manually; follow with insecticidal soap or horticultural oil; repeat every 7-10 days
How do I get rid of agave snout weevil (scyphophorus acupunctatus) on agave xylonacantha?
Abrupt collapse of central rosette; wet rot at crown; grubs found when plant is dug up No recovery once larvae are established — destroy the plant; apply systemic imidacloprid preventively to outdoor specimens in spring