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Survivorship of first instar black swallowtails administered different doses of event 176 pollen in the laboratory. The only survivorship curve that does not differ from control is the 10 grains/cm2 (log rank test P = 0.263). Pollen was suspended in acetone and applied to leaf material. The control consisted of addition of acetone only. For details of the bioassay method, see Wraight et al. (7).
