Habitat Restoration

Post Fire Restoration on Hart Mountain NAR

Recently, Hart Mountain NAR engaged in a major spraying effort on 51,000 acres aimed at controlling invasive plants, primarily cheatgrass and medusahead. Herbicide choice and dosages were carefully calibrated to target the specific problems of certain areas.

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Invasive Purple Loosestrife Detected at Malheur NWR

During late August we completed 15 hours of transects and reconnaissance looking for other locations with flowering loosestrife. We also floated the Blitzen River upstream for 15 miles looking for other occurrences. None were found. On 8/28/25 the County came out and sprayed the known plants from an airboat.

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Fire on Hart Mountain

Post-fire conditions can pose a serious threat with opportunistic annual grasses invading ahead of the native perennial flora. The increase in introduced, annual grasses shift fuel loads and can make fires occur more often than typical.

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Conservation Pruning Update

Written by Janelle Wicks, FOMR Director   Over the past 4 years Jon and Karen from Prunus have been helping the refuge to manage aging trees near headquarters and other

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