Abstract
Abstract Silks from fiftythree maize plant introductions from the United States GermplasmMaize Project, a resistant (Zapalote Chico) and a susceptible (Stowells’ Evergreen sweetcorn) check mixed into a pinto bean diet were evaluated at Tifton, GA for resistance against larvae of the corn earworm. The experimen was arranged as a randomized complete bloc design with 30 replications. Silks that had emerged two days from maize grown in the field were excised to the eartip, oven dried at41° C for 10 days, ground with a Cyclotec 1093sample mill and mixed into pinto bean dietsat 50 mg/ml diet. Dietmixtures were dispensedinto plastic cups and 1 neonate corn earworm was placed in each diet cup. Ten gram of fresh silks of each entry was analyzed fo maysin content. Weight (mg) of larvae was recorded 8 days after infestation. Mean weight oflarvae and pupae, development time of larvae plus the standard error of the mean and percentage maysin content of fresh silks were recorded.
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