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  • Red goldenrod aphids (Uroleucon nigrotuberculatum) feeding on Early Sunflower (Heliopsis helianthoides).
    Red_goldenrod_aphid-E52326.jpg
  • Red goldenrod aphids (Uroleucon nigrotuberculatum) on Early Sunflower (Heliopsis helianthoides). A mature female births a young aphid.
    Red_goldenrod_aphids-E52112.jpg
  • Red goldenrod aphids (Uroleucon nigrotuberculatum) on Early Sunflower (Heliopsis helianthoides) - one mature female birthing.
    Red_goldenrod_aphids-E52110.jpg
  • Red goldenrod aphids (Uroleucon nigrotuberculatum) feed on an Early Sunflower (Heliopsis helianthoides). Early-season aphids are generally wingless and don’t lay eggs; instead, they live-birth female nymphs (as seen here), who may also be already pregnant - without male involvement. <br />
Winged females usually develop later in the season, making it easier for them to travel to new plants. In addition, autumn brings on a phase of sexual reproduction, which produces eggs that survive the winter.
    Red_goldenrod_aphids-E52120.jpg
  • Red goldenrod aphids (Uroleucon nigrotuberculatum) on Early Sunflower (Heliopsis helianthoides). One mature female birthing.
    Birthing_Red_goldenrod_aphid-E52134.jpg