Stalk borer: Biology and ecology

This univoltine insect (Bailey et al. 1985) can deposit 75-2,200 eggs on dead grasses and weeds and will overwinter as eggs on these plants. Half of the eggs will have hatch once 309 FDD (154 CDD) have accumulated about 48oF (8.9oC). Newly-emerged larvae will bore and feed within the stems of grasses and weeds. However, once they grow to large for the stem or deplete their resources the will migrate to another host. The larvae will develop through 7-8 larval stages and will feed on at least 176 plant species.