光源の違いがカメムシ類の誘引に及ぼす影響

抄録

The attractiveness of incandescent lamp （54W） and mercury lamp （100W） light sources to stink bugs （Heteroptera: Pentatomidae） was compared under field conditions. Although the degree of the attractive effect differed among stink bug species, 5.6–304.6 times as many bugs were caught in the mercury lamp trap than in the incandescent lamp trap. The total photon numbers in the spectral sensitivity region for stink bugs （250–650nm） were almost the same between the two lamps; however, the mercury lamp emitted about 16 times more photons than the incandescent lamp in the ultraviolet region （250–400nm）, which is highly attractive to stink bugs. When the mercury lamp was covered with a UV-absorbing filter, which blocked about 90% of the photons in the ultraviolet region, the numbers of trapped Glaucias subpunctatus （Walker）, Plautia stali Scott, and Halyomorpha halys（Stål） decreased to less than 25% of those trapped using the non-filtered mercury lamp. These results indicate that the high attractiveness of the mercury lamp to some stink bug species is partly due to strong light intensity in the ultraviolet region.