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ARS Home » Pacific West Area » Parlier, California » San Joaquin Valley Agricultural Sciences Center » Commodity Protection and Quality Research » Research » Research Project #435702

Research Project: Biological Characterization of Sterile Navel Orangeworm with and without Mating Disruption

Location: Commodity Protection and Quality Research

Project Number: 2034-43000-040-60-R
Project Type: Reimbursable Cooperative Agreement

Start Date: Nov 1, 2018
End Date: Apr 30, 2021

Objective:
The objectives of this proposal are to: characterize and refine viability and field competitiveness of mass-produced navel orangeworm (NOW) adults; use mark-release-recapture with sterile NOW to compare the radius of attraction of NOW males and females with their respective attractants in the absence of mating disruption; and determine if mating disruption changes: a) the impact of sterile NOW on mating and fertility of wild NOW, and/or b) the radius of attraction of NOW male and female attractants.

Approach:
To meet the objectives we will (1) Compare results of laboratory flight cylinder assays, small-plot mark-release-recapture assays, and small-plot assays with partially immobilized unmated females. (2) Use a recently-described mark-release-recapture methods and accompanying theoretical framework to compare the radius of attraction of traps baited with pheromone (males only), ovipositional attracts (females only), and mixed-sex attractants. (3) Examine, in the presence of mating disruption, whether the radius of attraction of female-only and mixed-sex attractants changes.