Mortality response of lightbrown apple moth to a controlled atmosphere cold storage treatment for apricots

D.C. Whiting, L.E. Hoy
1997 Proceedings of the New Zealand Plant Protection Conference  
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 (LT 99 ) of 1st and 5th instar larvae inoculated onto apricots and exposed to 1.5% O 2 , 3% CO 2 (CA) at 0°C, were 19.9 ± 0.13 and 22.4 ± 0.24 d, respectively. The treatment time for 50% mortality (LT 50 ) was similar for the two life stages. However, 5th instar larvae required longer
more » ... equired longer treatment times than 1st instar larvae to achieve 99 and 99.9968% mortality (LT 99.9968 ). A 28 d treatment resulted in complete mortality of both life stages tested.
doi:10.30843/nzpp.1997.50.11336 fatcat:mxmocremh5cmva2muyvxllaoxm