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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 #420522

Research Project: Low Pressure as an Alternative to Chemical Fumigation for Controlling Pests in Fresh Temperate Fruits

Location: Commodity Protection and Quality Research

Project Number: 5302-43000-038-04-R
Project Type: Reimbursable Cooperative Agreement

Start Date: Oct 1, 2010
End Date: Aug 31, 2013

To develop non-chemical alternatives to chemical fumigants for quarantine treatments of codling moth in fresh temperature fruits (apples and cherries) using low pressures (vacuum) at low temperatures.

We will: 1) study the control stability and precision of pressure, temperature, and humidity in low pressure (LP) chambers under empty and loaded conditions; 2) compare tolerance of eggs and larval stages under selected pressure and temperature combinations; 3) using the most tolerant life stage in fruit, conduct dose-response studies to determine the pressure, temperature, and exposure necessary to obtain probit 9 mortality levels; and 4) evaluate fruit quality under the LP treatment conditions required to achieve quarantine security (probit 9).