Project Number: 5302-43000-034-12
Project Type: Reimbursable

Start Date: Oct 01, 2010
End Date: Aug 31, 2013

Objective:
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.

Approach:
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). Documents Reimburseable with Washington State University. Log 42149.