ハスモンヨトウ雄成虫の日暮時の活動時刻とそれに関与する要因

概要

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The number of males of Spodoptera litura (F.) taking off to fly every 10 min in the dusk followed approximately a normal distribution. However, the number of individuals taking off each minute varied considerably with the wind speed. The males began to fly, on the average, 26 min after sunset and the mean time of take-off was 49 min after sunset. The number of males caught in the pheromone traps every 10 min in the dusk also followed a normal disrtribution. The first catches in the trap occurred at 32 min after sunset and the mean catch time was 56 min after sunset. The time of take-off and catches did not vary with the month and location where the experiments were conducted. The factors influencing the changes in these times with the days of the experiments could not be detected by multiple regression analysis, using variables related to wind and weather conditions and the pheromone sources for the trap as independent varibles.
日本応用動物昆虫学会の論文
1984-05-25