Abstract
Some graminaceous fodder crops were compared to grain sorghum for larval feeding and ovipositional preference by Sesamia cretica Led., under laboratory conditions. The percentages of S. cretica larvae attracted to each host of the four gramineous plants studied in free choice test after one hour, for the sorghum, broom corn, pearl millet and sudan grass were 20.00%, 10.00%, 20.00% and 24.00% of larvae, respectively, with no significant differences between them. The four gramineous plants studied in free choice test after 24 hours varied significantly, sudan grass was the most attractive crop (32.00%), however, broom corn was the lowest in attractiveness (8.00%). The non-responded larvae number decreased from 26.00% in one hour observation to 17.00% in 24 hours observation. Data indicated a strong ovipositional preference for pearl millet (34.46%), however, broom corn harbored the lowest percent of egg deposit (14.04%).
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