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Student Regular Poster Display

Plant-Insect Ecosystems

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Student Regular Poster: PBT and P-IE, IPM

Entomopathogenic nematode formulation refinement against mealybugs

Tuesday, November 11, 2025

9:00 AM - 5:00 PM Pacific

Location: Exhibit Hall A-A1, OCC

Presenting Author(s)

Alexander Maxwell Butcher

Oregon State University
Albany, Oregon

Co-Author(s)

Vaughn M. Walton

Oregon State University
Corvallis, Oregon
SR

Sophia Reindl

Oregon State University
Corvallis, Oregon
KP

Kyoo Park

Oregon State University
Corvallis, Oregon
AS

Alexis Shobe

Oregon State University
Corvallis, Oregon
xL

xinyu Li

Oregon State University
Corvallis, Oregon

Mealybugs are cryptic pests in vineyards with limited organic control options. Entomopathogenic nematodes can be used under ideal environmental conditions to target such cryptic life stages where both moisture and temperature is more favorable, such as under the bark and in the soil. Here temperatures are moderated and moisture levels higher, and conditions are more suitable for effectiveness of entomopathogenic nematodes. This study was designed to improve nematode activity duration and pathogenic potency against mealybugs with the use of a novel organic adjuvant.