Controlling Flea Beetles and Other Beetles on Lilies with Organic Methods

Identifying the Pests

Orange beetles with black heads are likely flea beetles; black specks under leaves may be their larvae or frass.

Organic Control Arsenal

• Sticky traps + diatomaceous earth: Hang white sticky traps within 10 ft; dust diatomaceous earth around plants.
• Beneficial nematodes: Apply to soil for larval control.
• Trap crops: Plant nasturtiums or petunias nearby; flea beetles prefer them. Remove and destroy infested trap plants.
• Row covers: Cover young lilies with Reemay until established.
• Botanical sprays: Pyrethrum/rotenone mix applied to foliage and soil.