dib·ble 
(dĭbəl)
(dĭbəl)n.
A pointed gardening implement used to make holes in soil, especially for planting bulbs or seedlings.
tr.v. dib·bled, dib·bling, dib·bles
1. To make holes in (soil) with a pointed implement.
2. To plant by means of a pointed implement.
[Middle English dibbel.]
dibbler n.
dibble