Yucca Borer Grubs: Photo ID Needed for Species-Specific Control

Multiple established yuccas dying; gardener found wet roots and bored trunks with yellowish grubs (brown heads, pincers). Not ivory like grub worms. Owner seeks ID and control.

Next Steps

• Close-up photo of grub (clear, not blurry) → send for expert ID.
• Or collect 2–3 grubs in vial → county Ag extension (courthouse) for ID.
• Species determines control: some borers have pheromone traps, others need systemic insecticide.

Wet roots suggest possible root rot complicating the picture. Accurate ID is essential before treatment.