住宅と山林におけるタバコシバンムシの生息調査

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The present investigation surveyed the habitat of Cigaret beetles indoors and outdoors of urban houses and suburban houses by pheromone traps. The same house in Suginami-ku and one apartment in Stagaya-ku within Tokyo as in the first and second report (Kawakami and Nakano, 1996; 1997) were used. The investigation with pheromone traps for the seasonal prevalence was conducted from 8, April to 6 , December, 1997. The pheromone traps were set in the kitchen, Japnese-style room, foreign-style room and outside veranda, changing used traps with new ones every 14 days. The first capture of Cigaret beetles was two from foreign- style rooms of an apartment for phermone traps of 24, April to 8, May set. The largest captured number was from 30, July to 13, August, and the largest captured number per house was 465, per apartment was 600 and higher for outside verandas. The numbers of Cigaret beetles captured began to decrease from the midle of September, and the numbers per house and per partment were 0 from 6, November to 6, December. In addition one house, two apartments, one storeroom of a restaurant in Fujisawa-shi, Kanagawa prefecture and one farmhouse in Yachimatashi, Chiba prefecture were used for the pheromone trap study conducted from 4 -30, September (house and apartments), 5 , August to 5 , September ( resutaurant) and 12-22, August (farmhouse), 1997, All pheromone traps caught Cigaret beetles, but the number of Cigaret beetles trapped was much lower in the farmhouse than in urban houses. Also investigation with pheromone traps for two forest areas was conducted. Ten pheromone traps were set on under a tree at intervals of ten meters in the ohbajohshi-park (forty meters above sea level) at Fujiswa-shi, Kanagawa perfecture, conducted from 1, August to 31, October, 1997, and used traps were replaced with new ones every 10 days. Thirteen pheromone traps were set under a bench and some other sports at the ashigakubo-fruit park (from 300 to 600 meters above sea level) at Yokose-machi, Saitama prefecture, conducted from 17-30, August, 1997. The capture number of Cigaret beetles increased in traps near houses more than those far from houses in the ohbajohshi-park. However, all pheromone traps did not catch Cigaret beetles in the ashigakubo-fruit park. The results from the last time (Kawakami and Nakano, 1997) and this investigation prove Cigaret beetles are more likely to lead ordinary lives in houses, and keep their life cycle by going outdoors (summer) and coming back indoors (late autumn), and prefer urban houses to suburban houses, which makes it a typical urban insect.
日本家屋害虫学会の論文
1998-06-30

住宅と山林におけるタバコシバンムシの生息調査

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