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Pine nematode confirmed at four French locations spanning southwest to central regions between November 2025 and July 2026.
The pine nematode, a destructive forest pest, has been detected at four locations across France, marking an expanding geographic spread of the infestation. Initial detection occurred in Lescar, Pyrénées-Atlantiques, followed by cases in the Landes region. The first Landes case was confirmed in Seignosse in November 2025, with a second confirmed in Angresse in March 2026. Most recently, the nematode was detected near Orléans in July 2026, representing a significant northeastward expansion of the outbreak.
The progression from southwestern coastal regions to central France indicates the pest is establishing itself across diverse geographic areas. Each confirmed case adds urgency to containment efforts, as the widening distribution suggests the infestation may continue spreading to additional regions if not controlled.
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Infestation detected across 280+ kilometers from coast to central France
The nematode's presence spans from Pyrénées-Atlantiques and Landes in the southwest to Loiret in central France, covering substantial geographic distance. Four confirmed locations over eight months demonstrate the pest's ability to establish across varied regions. This pattern suggests the infestation is not isolated but rather advancing northeastward, potentially threatening additional forested areas.
Detection cases documented from November 2025 through July 2026
The outbreak timeline shows initial detection in Seignosse in November 2025, followed by a second Landes case in March 2026. The Orléans detection in July 2026 represents the northeastward progression. Cases emerged within an eight-month window, indicating rapid spread and establishment in new territories, though causation factors remain unspecified.