Abstract
Larvae of the sorghum midge, Contarinia sorghicola, develop more slowly in pedicellate (male) spikelets than in sessile (seed producing) spikelets on sorghum panicles. In pedicellate spikelets, total immature development time was 1.5 d slower than the 19.3 d taken in sessile spikelets. This difference has implications for the determination of development rate on midge‐resistant sorghums.