Pest identification
What's eating my tuscan blue rosemary?
Rosemary beetle (Chrysolina americana)
Signs: Adults and larvae strip leaves and growing tips; severe infestations can defoliate whole branches
Control: Hand-pick beetles and larvae; check undersides of leaves; shake onto a sheet and destroy; use pyrethrum if needed
Spittlebug / froghopper
Signs: White frothy blobs on stems in May–June, containing a sap-sucking nymph; minor cosmetic damage
Control: Remove by hand or jet of water; no chemical treatment normally required; tidy debris where adults overwinter
Vine weevil (Otiorhynchus sulcatus)
Signs: C-shaped white grubs eat roots; first sign is sudden wilting and plant collapse; adults notch leaf margins
Control: Apply nematodes (Steinernema kraussei) to moist compost in late summer; repot and inspect roots annually in containers
Keep tuscan blue rosemary pest-free
Healthy plants resist pests best. Get the basics right:
- What eats rosemary — the species this cultivar belongs to
- What eats tuscan blue rosemary — our other guide for the same plant
- What's wrong with my plant? — the diagnosis apps compared
- Common tuscan blue rosemary problems & fixes
- Tuscan Blue Rosemary watering schedule
- Tuscan Blue Rosemary light requirements
- Full tuscan blue rosemary care guide
Tuscan Blue Rosemary pests — FAQ
What is eating my tuscan blue rosemary?
Tuscan Blue rosemary faces the same pests as all rosemary cultivars. Rosemary beetle is the most damaging, stripping foliage from autumn through spring. Spittlebugs appear in early summer but cause little lasting harm. Good drainage and airflow keep this vigorous upright variety in strong health.
How do I get rid of rosemary beetle (chrysolina americana) on tuscan blue rosemary?
Adults and larvae strip leaves and growing tips; severe infestations can defoliate whole branches Hand-pick beetles and larvae; check undersides of leaves; shake onto a sheet and destroy; use pyrethrum if needed
How do I get rid of spittlebug / froghopper on tuscan blue rosemary?
White frothy blobs on stems in May–June, containing a sap-sucking nymph; minor cosmetic damage Remove by hand or jet of water; no chemical treatment normally required; tidy debris where adults overwinter
How do I get rid of vine weevil (otiorhynchus sulcatus) on tuscan blue rosemary?
C-shaped white grubs eat roots; first sign is sudden wilting and plant collapse; adults notch leaf margins Apply nematodes (Steinernema kraussei) to moist compost in late summer; repot and inspect roots annually in containers