Do Green Giant Arborvitae Attract Mosquitoes? Myth vs. Reality

No Direct Attraction

Arborvitae (Thuja spp.) do not inherently attract mosquitoes. Mosquitoes breed in standing water, not in specific plants. However, dense foliage can create humid microclimates where mosquitoes rest.

Practical Mosquito Management

• Eliminate standing water in saucers, gutters, and low spots.
• Improve airflow by thinning interior branches if the hedge is overly dense.
• Use non-toxic repellents: Products like Atomic Grow (a foliar spray) claim to repel insects while boosting plant health. Alternatively, apply permethrin-based yard sprays sparingly and follow label directions.
• Personal protection: Use EPA-registered repellents on skin/clothing when outdoors.

Focus on water management and airflow rather than blaming the trees.