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Little Black Bugs on My Burning Bush

Burning bush (Euonymus alatu) is a native of Asia. Also referred to as the winged spindle tree, the shrub gets its name from its brilliant red fall color. Burning bush is widely used as a foundation plant. The shrub is susceptible to numerous pests including very small black insects.

  1. Identification

    • The black vine weevil (Otiorhynchus sulcatus) is a likely pest of burning bush. The nonflying, black insects have antennae on their long heads that are shaped into snouts. The insect larvae are white.

    Damage

    • Black vine weevils eat the foliage and flowers, giving them a ragged and tattered look. The larvae infest and feed on roots. Root damage makes plants susceptible to serious root fungi, such as Phytophthora. The insects also feed on branches and increase chances of limb damage.

    Management

    • Keep the plants in good health, as healthy plants are more tolerant of light bug infestation. Inspect new plant roots for larvae presence before planting. Use sticky bands on trunk and larger branches to trap insects. Introduce parasitic nematodes in soil to control larvae.