diff --git a/lib/microwaveprop/workers/propagation_grid_worker.ex b/lib/microwaveprop/workers/propagation_grid_worker.ex
index 0e318698..6e48b9f2 100644
--- a/lib/microwaveprop/workers/propagation_grid_worker.ex
+++ b/lib/microwaveprop/workers/propagation_grid_worker.ex
@@ -45,7 +45,6 @@ defmodule Microwaveprop.Workers.PropagationGridWorker do
   alias Microwaveprop.Propagation
   alias Microwaveprop.Propagation.BandConfig
   alias Microwaveprop.Propagation.Grid
-  alias Microwaveprop.Propagation.GridTaskEnqueuer
   alias Microwaveprop.Propagation.ProfilesFile
   alias Microwaveprop.Propagation.ScoreCache
   alias Microwaveprop.Weather
@@ -98,13 +97,10 @@ defmodule Microwaveprop.Workers.PropagationGridWorker do
 
     Oban.insert_all(jobs)
 
-    # Seed the grid_tasks table in parallel so the Rust `prop-grid-rs`
-    # worker can pick up f01..f18 from a shared NFS mount. During Phase
-    # 1 shadow mode this runs alongside the Elixir chain; the Rust
-    # writes land in /data/scores_shadow and are diffed by
-    # `ShadowComparator`. At cutover the Elixir fan-out above is
-    # trimmed to just fh=0.
-    _ = GridTaskEnqueuer.seed(run_time)
+    # `GridTaskEnqueuer.seed/1` feeds the Rust `prop-grid-rs` worker via
+    # grid_tasks. Disabled until the Rust image is validated end-to-end
+    # on talos5 — once cutover is approved, the Elixir fan-out above
+    # shrinks to just fh=0 and this line comes back.
 
     :ok
   end