Protecting Boxwoods from the Box Tree Moth in East China, MI

The box tree moth (Cydalima perspectalis) is an invasive pest that poses a serious threat to boxwood plants, a popular evergreen shrub in landscapes throughout East China, Michigan. Native to East Asia, this pest has recently been found in North America, raising concerns among gardeners and homeowners who rely on boxwoods for their ornamental value.

What to Know About the Box Tree Moth

The box tree moth primarily harms boxwoods during its larval stage. The caterpillars are greenish-yellow with black stripes and spots, and they feed aggressively on boxwood leaves and stems. This feeding creates visible damage, such as skeletonized leaves, excessive defoliation, and webbing on the plants. Severe infestations can weaken or kill boxwood shrubs entirely if left untreated.

Adult moths are generally white with brown borders on their wings, but some can be entirely brown. The presence of moths, webbing, or damaged foliage are key signs of an infestation.

How It Spreads

The box tree moth can spread locally as adult moths fly to new areas, but long-distance movement often happens through infested boxwood plants. Nursery stock and plant cuttings transported without thorough inspection are a common source of new outbreaks.

Preventing and Managing Box Tree Moth

1. Inspect Regularly: Check your boxwood plants for caterpillars, webbing, or signs of chewing damage.

2. Prune Affected Areas: Remove and properly dispose of any infested branches to contain the spread.

3. Use Targeted Treatments: Apply appropriate insecticides when necessary, following all product instructions. For environmentally friendly options, consider biological controls.

4. Buy Carefully: Purchase boxwoods only from reputable sources that inspect for pests.

Protecting Landscapes in East China

Box tree moth infestations can significantly harm the health and appearance of boxwoods. Residents of East China can protect their landscapes by staying alert, inspecting plants regularly, and acting quickly if pests are discovered. Taking proactive measures ensures your boxwoods remain healthy and vibrant, helping to preserve the beauty of your outdoor spaces.