Lilac: Lilac leafminer

Photo by: R.S. Byther

Use IPM (Integrated Pest Management) for successful plant problem management.

Biology Leafminers feed by removing green tissue from between the upper and lower surfaces of the leaves. Symptoms of feeding by the green larvae include large brown blotches which may distort the leaves. The adult lilac leafminer is a small brown moth. The lilac leafminer may also infest privet.

Management Options

• Natural predators may help control populations. Encourage predators such as green lacewings and spiders.
• Pinch, or pick and destroy, infested leaves to kill larvae.

Revision Date:5/6/2009

If you choose to use a pesticide, spray when mined blotches are first noticed or at least before leaves fall. Repeat as necessary.

If you choose to use a pesticide, some examples of products that are legal in Washington are listed below.

Always read and follow all label directions.


• Bayer Advanced 12-month Tree & Shrub Insect Control Conc
• Bonide Systemic Insect Control
• Lilly Miller Systemic Rose, Shrub & Flower Care 8-12-4
• Ortho Isotox Insect Killer Formula IV Conc
• Ortho Orthene Systemic Insect Control Conc
• This list may not include all products registered for this use.

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