Pest identification
What's eating my mexican feather grass?
Aphids
Signs: Small clusters on stems causing honeydew deposits and mild yellowing of fine blades
Control: Dislodge with a water jet or apply insecticidal soap; natural predators usually keep numbers in check
Spider mites
Signs: Fine stippling and pale speckling on blades in hot, dry weather; faint webbing at stem bases
Control: Increase ambient humidity; spray with water to dislodge; apply neem oil or insecticidal soap
Caterpillars (various)
Signs: Irregular chewing of blade tips and margins; damage is cosmetic and rarely threatens established plants
Control: Hand-pick caterpillars; apply Bacillus thuringiensis (Bt) spray for heavier infestations
Keep mexican feather grass pest-free
Healthy plants resist pests best. Get the basics right:
Mexican Feather Grass pests — FAQ
What is eating my mexican feather grass?
Mexican Feather Grass is one of the most pest-resistant ornamental grasses available. Aphids and spider mites occasionally visit in dry, warm conditions. Caterpillars may chew blades opportunistically. The fine foliage and drought-tolerant nature mean serious infestations are rare; the plant typically outcompetes damage through vigorous growth.
How do I get rid of aphids on mexican feather grass?
Small clusters on stems causing honeydew deposits and mild yellowing of fine blades Dislodge with a water jet or apply insecticidal soap; natural predators usually keep numbers in check
How do I get rid of spider mites on mexican feather grass?
Fine stippling and pale speckling on blades in hot, dry weather; faint webbing at stem bases Increase ambient humidity; spray with water to dislodge; apply neem oil or insecticidal soap
How do I get rid of caterpillars (various) on mexican feather grass?
Irregular chewing of blade tips and margins; damage is cosmetic and rarely threatens established plants Hand-pick caterpillars; apply Bacillus thuringiensis (Bt) spray for heavier infestations