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Potato Tubermoth ID

Potato Tubermoth ID. Silvia I. Rondon Extension-Entomologist Hermiston Agricultural Research and Extension Center Crop & Soil Science. Potato Tuberworm (“official common name”) or Potato Tubermoth. Potato Tuberworm Phthorimaea operculella (Zeller).

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Potato Tubermoth ID

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  1. Potato Tubermoth ID Silvia I. Rondon Extension-Entomologist Hermiston Agricultural Research and Extension Center Crop & Soil Science

  2. Potato Tuberworm (“official common name”) or Potato Tubermoth

  3. Potato Tuberworm Phthorimaea operculella (Zeller) • A serious pest of potatoes in many parts of the world • First reported in Oregon ~ 2002

  4. Where can we find PTW? How to ID? How to sample?

  5. Potatoes Eggplant Tomatoes Bittersweet nightshade Tobacco Jimsonweed Buffalobur Host Plants Crops (Solanaceae) Weeds (Solanaceae)

  6. Egg <4/100 inch long Adult length and wingspan ~ ½ inch Larvae < ½ inch long dark head capsules Pupae < ½ inch long

  7. Damage

  8. Not Tuber Worm Symptoms Wireworm damage

  9. Survey: Adults • Females release a pheromone that attracts males

  10. Credits. Steve Alley and Richard Worth, ODA

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