Grub toads were undesirable creatures that resided on the forest moon of Endor. The Tulgah witch Morag apparently had the power to change creatures into grub toads, and she was known to threaten her servants, such as her beast, with such a fate. However, this may have just been a general threat rather than a legitimate power that could be performed by Morag. Whether grub toads had any relation to Bo-toads or Drutash grubs was unknown.