Combatting the box tree moth invasion with simple, homemade Solutions

The box tree moth migrated to Europe from Asia and quickly spread across the continent. It is an exceptionally invasive butterfly species that can cause much damage in the garden. As soon as it appears, acting swiftly or before you realize it could decimate your hedge is essential.

The activity of the box tree moth can be most notably observed on the leaves of boxwood, among other species, hence the name of this butterfly. However, individuals of this species also eagerly feed on holly and euonymus.

Young larvae primarily eat the delicate upper part of the leaves, while older individuals devour them entirely, drying out the plant. Sticky cobwebs between the branches and leaves of hedges and the visible greenish lumps of excrement in the web indicate their presence.

Small larvae are less visible, but slightly larger ones become green and more noticeable. Moths are attracted to light, so in the evening, you can inspect the bushes by shining a torch between the hedge branches.

To eradicate the box tree moth, spraying the hedge with a strong jet of water can be effective, as it dislodges larvae, caterpillars, and adult individuals from the leaves. Alternatively, a practical, homemade spray based on water, vinegar, and oil can be used. Add about 100ml of spirit or apple cider vinegar and four tablespoons of oil (e.g., sunflower) under a litre of water.

Apply this mixture to the leaves and branches. Thanks to the added oil, it will adhere to the leaves longer, deterring the moths from returning quickly. After spraying with water or this mixture, it's crucial to diligently remove insects from the ground and ensure they are removed from the garden.