Inverted crab dillies also known as witches' hats will be banned in Queensland from 2 April 2010.
Fisheries resource manager Mark Lightowler said the ban was in place to combat ‘ghost-fishing' and reduce entanglement and death of non-target marine species.
"Inverted dillies are made of a light gauge mesh, which can easily entangle marine species such as turtles, sharks, rays and fish," he said.
"It is difficult to release these species and female and undersized crabs from this mesh unharmed.