Coco coir, (aka coco dust, coco fiber, or coconut coir mulch) is proposed as an alternative. So let’s look at coco fiber vs.

The state has designated Oahu as infested by coconut rhinoceros beetles, which is triggering new restrictions. Starting now, landscaping materials such as compost, wood chips, mulch, and palms ...

Why? It turns out that bags aren’t much of a barrier to a beetle that can chew through coconut trees. Even if the compost, mulch or soil wasn’t sourced from an infested area, if bagged soil ...