Leaf damage from this moth is usually light and can be tolerated. Although the leaf mining may be considered unsightly, it is unlikely to affect the health or vigour of an established tree or shrub. In addition many leaf miners have parasites and predators which may be killed by spraying leading to a resurgence of the leaf miner or other invertebrates. In some areas birds such as blue tits have learnt to open leaf mine and feed on the caterpillars within.
If desired light infestations on lilac trees can be dealt with by picking off and disposing of mined or rolled leaves, this can however, cause more damage than the leaf miner. Attacks on privet hedges can be much reduced by triming the hedge. In the autumn fallen leaves from a badly infested lilac can be gathered and burnt to reduce the number of overwintering pupae. The waste plant material can be disposed of in council waste.
There are no insecticides that are suitable for controlling leaf mining insects in home gardens.