Pest identification
What's eating my agave ovatifolia?
Mealybugs
Signs: White fluffy colonies in leaf bases; honeydew and possible sooty mould; gradual yellowing of affected leaves
Control: Apply 70% isopropyl alcohol with cotton swabs; drench the rosette with neem oil solution; treat every 7–10 days until completely clear
Scale insects
Signs: Hard waxy brown or tan bumps on the glaucous leaf surface; localised discolouration
Control: Scrape off with a soft brush; wipe with isopropyl alcohol; maintain with monthly neem oil spray
Agave snout weevil (Scyphophorus acupunctatus)
Signs: Abrupt collapse of the rosette; slimy, rotten core; adult beetles visible at soil level in spring
Control: Destroy and bag infested plants immediately; apply preventive imidacloprid or similar systemic drench to soil around healthy plants in affected outdoor areas
Keep agave ovatifolia pest-free
Healthy plants resist pests best. Get the basics right:
Agave ovatifolia pests — FAQ
What is eating my agave ovatifolia?
Agave ovatifolia (Whale's Tongue Agave), a broad, powder-blue species, is highly pest-resistant due to its thick glaucous leaves. Mealybugs are the most realistic indoor threat. Scale insects appear occasionally. In warm outdoor climates, the agave snout weevil is the single most dangerous pest, capable of killing a mature plant within weeks.
How do I get rid of mealybugs on agave ovatifolia?
White fluffy colonies in leaf bases; honeydew and possible sooty mould; gradual yellowing of affected leaves Apply 70% isopropyl alcohol with cotton swabs; drench the rosette with neem oil solution; treat every 7–10 days until completely clear
How do I get rid of scale insects on agave ovatifolia?
Hard waxy brown or tan bumps on the glaucous leaf surface; localised discolouration Scrape off with a soft brush; wipe with isopropyl alcohol; maintain with monthly neem oil spray
How do I get rid of agave snout weevil (scyphophorus acupunctatus) on agave ovatifolia?
Abrupt collapse of the rosette; slimy, rotten core; adult beetles visible at soil level in spring Destroy and bag infested plants immediately; apply preventive imidacloprid or similar systemic drench to soil around healthy plants in affected outdoor areas