A Note on the Control of Indian Meal Moth (Lepidoptera: Pyralidae) in Flour Milling Facility by Superheating

제분 시설에서의 화랑곡나방(Lepidoptera: Pyralidae)의 고온 방제

  • Na Ja Hyun (Division of Environmental Science and Ecological Engineering, College of Life and Environmental Sciences, Korea University) ;
  • Ryoo Mun Il (Division of Environmental Science and Ecological Engineering, College of Life and Environmental Sciences, Korea University)
  • 나자현 (고려대학교 생명환경과학대학 환경생태공학부) ;
  • 류문일 (고려대학교 생명환경과학대학 환경생태공학부)
  • Published : 2005.03.01

Abstract

In a flour milling facility, control ability of superheating effect on Indian meal moth population was teated. Thirty adults, thirty larvae and 100 eggs were placed in a paper bag ($10{\times}20cm$) containing 100 g flour and were exposed to the temperature higher than $60^{\circ}C$ for longer than 3 hours. Mortality of the Indian meal moth (${\pm}standard error$) varied with the developmental stage; mortality (${\pm}standard error$) of egg, larvae and adult were in the range of $91.40{\pm}0.93{\sim}98.80{\pm}0.20\%,\;96.00{\pm}0.67{\sim}100\%$) and $100\%$, respectively. The position of paper bag caused differences in temperature and its exposure time to the moth during the experiment, consequently. The mortality of moth was significantly different among the bag position. Exposure of the paper bag to the temperature of higher than $60^{\circ}C$ for longer than 11 hours was not sufficient to kill all the eggs.

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