Genesis 30:37 in the King James Version
And Jacob took him rods of green poplar, and of the hazel and chesnut tree; and pilled white strakes in them, and made the white appear which was in the rods.
Context
36 He set three days’ journey between himself and Jacob, and Jacob fed the rest of Laban’s flocks.
37 Jacob took to himself rods of fresh poplar, almond, and plane tree, peeled white streaks in them, and made the white appear which was in the rods.
38 He set the rods which he had peeled opposite the flocks in the watering troughs where the flocks came to drink. They conceived when they came to drink.