Figure 6.

SLWF development on MeJA-treated or control npr1-1 plants. At 17 d postinfestation, the numbers of nymphs in each instar were counted on npr1-1 plants treated with 100 μm MeJA/0.001% ethanol (diagonal bars) or 0.001% ethanol (black bars; control). The percentage of nymphs at each developmental stage (first through fourth instar) was determined. Infestations were performed at 24°C, which accelerated SLWF nymph development. Each infested plant had approximately 225 feeding nymphs. Two biological replicate infestations were performed. One representative experiment is shown.