Controlling Daisy Beetles on Coneflowers and Black-Eyed Susans

Small beetles devouring flower buds on daisy-family plants like brown-eyed Susans and coneflowers are likely chrysomelid leaf beetles — dubbed "daisy beetles" for their preference. Hundreds of species exist, but all respond to similar controls.

Effective Treatment

Spray with a garden insecticide containing deltamethrin, permethrin, or cypermethrin. Apply when beetles are active and repeat as needed per label instructions. Early intervention protects flower buds and preserves bloom display.

Identification Notes

• Adults are small, often metallic or striped.
• Larvae may feed on foliage or roots.
• Damage appears as chewed buds and ragged petals.

Regular scouting in late spring catches infestations early.