MORTALITY RESPONSE OF LIGHTBROWN APPLE MOTH TO A CONTROLLED ATMOSPHERE COLD STORAGE TREATMENT FOR APRICOTS D.C. WHITING and L.E. HOY
نویسنده
چکیده
The mortality response of lightbrown apple moth, Epiphyas postvittana (Walker), to a controlled atmosphere (CA) cold storage treatment for apricots was investigated. The mean estimated times for 99% mortality (LT99) of 1st and 5th instar larvae inoculated onto apricots and exposed to 1.5% O2, 3% CO2 (CA) at 0°C, were 19.9 ± 0.13 and 22.4 ± 0.24 d, respectively. The treatment time for 50% mortality (LT50) was similar for the two life stages. However, 5th instar larvae required longer treatment times than 1st instar larvae to achieve 99 and 99.9968% mortality (LT99.9968). A 28 d treatment resulted in complete mortality of both life stages tested.
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