Spotted Lanternflies have moved beyond the suburban clustering of spring and…

June 26, 2026Northern Inner Piedmont

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have moved beyond the suburban clustering of spring and reached the deeper parks — Occoquan and Mason Neck both saw confirmed sightings this month, marking a significant eastward expansion from the corridors where 33 records grouped just weeks before. The timing is critical: late June is when the nymphs shed their final skin and take flight, multiplying the speed and reach of their spread.

Since arriving in the mid-Atlantic roughly a decade ago, these invasive insects (Lycorma delicatula) have tracked tree-of-heaven with striking precision—a relationship that has shaped where they've established and where they continue to push outward. The shift into protected parkland suggests the insect's range is now scaling beyond ornamental plantings and into forest edges where native trees may be equally vulnerable. The coming weeks will be telling; airborne adults scatter far more efficiently than the crawling nymphs that dominated spring, and summer weather is now on their side.

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