Bisexual lures and their comparison with synthetic sex attractants for trapping <i>Orthosia</i> species (Lepidoptera: Noctuidae)

Two bisexual lures have been developed using iso-amyl alcohol plus acetic acid combined with red wine extract (semisynthetic lure, SBL), or synthetic floral compounds (FLO) for trapping of noctuid moths early spring activity adults. Orthosia species were attracted by the tested semi-synthetic and indicating possible role fermenting liquids in feeding these species. Bisexual generally a lower number individuals than sex attractants given species, except O. cerasi where FLO more attractive attractant. caught both sexes females composed sizable percentage catch. Since traps baited different types provided similar data on ratios, thus presumably reflected actual ratio population. The use lures, especially case spp., can be useful surveys which capture ratios are indispensable, example population dynamic polyandry surveys. In contrast, low densities, attractant seem to still efficient.