A female monarch lays its eggs (1) on a sprouted milkweed plant. The eggs hatch in four to five days producing tiny yellow, black and white banded larvae (caterpillars). These caterpillars (2) will feed solely on milkweed and eat enormous quantities because they are growing fast.
1 It can cost $200-$500 for a solid wood door, and $500-$1,000 or more for a more decorative interior door in high-end wood like walnut or mahogany. 2  For example, Lowe's store brand ReliaBilt 30. 3  Wide 6-Panel Hollow Composite Door Slab costs about $33.
That said the average cost of garage door spring replacement is ââroughly $100 per spring. Keep in mind that while only one spring may have broken, springs are mounted in pairs; if one has broken the other may be close to doing so and should probably be replaced at the same time.