Abstract
Adult boll weevils, Anthonomous grandis , fed for 4 days from emergence on a dyeimpregnated artificial diet before illumination at 3800 μW/cm2 fluorescent light for 4 h yielded a dietary LD50 value of 9.9×10−4 moles/liter and a tissue LD50 value of 2.4×−7 moles/g wet weight for rose bengal. The dye-sensitized photooxidation reaction was treated mathematically and 2nd order rate constants of 4.50 liters/mole·min for dietary rose bengal and 2.25×104 g/mole·min for tissue rose bengal were calculated.
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