Plant Protection Institute, Centre for Agricultural Research, Hungarian Academy of Sciences, H-1022, Budapest, Herman Ottó út 15., Hungary.
Sci Rep. 2019 Jul 16;9(1):10303. doi: 10.1038/s41598-019-46621-x.
Green lacewings (Chrysopidae) are important predators of many soft-bodied pest insects, for instance aphids. Previous studies reported attraction of Chrysoperla carnea species-complex to a ternary floral bait. The larvae of these lacewings are important generalist predators in agroecosystems, however adults are non-predatory, they feed on pollen, nectar or honeydew. Squalene, a plant originated compound was previously reported to be attractive to the nearctic Chrysopa nigricornis. In the current study squalene was tested alone and in combination with the ternary bait in field experiments in Hungary. In our experiments, traps baited with squalene attracted predatory males of Chrysopa formosa. Traps baited with squalene and the ternary floral bait attracted adults of both C. formosa and C. carnea complex lacewings. To our knowledge this is the first report of a bait combination attractive to both Chrysoperla and Chrysopa species. This finding is of special interest considering the remarkably different feeding habits of the adults of these lacewings. Potential perspectives in biological control are discussed.
绿芜菁（Chrysopidae）是许多软体害虫（如蚜虫）的重要捕食者。先前的研究报告称，Chrysoperla carnea 种复合体能被三元花饵吸引。这些食虫幼虫是农业生态系统中重要的通用捕食者，但成虫是不捕食的，它们以花粉、花蜜或蜜露为食。角鲨烯，一种源于植物的化合物，先前被报道对近北极地区的 Chrysopa nigricornis 具有吸引力。在目前的研究中，角鲨烯单独和与三元诱饵一起在匈牙利的田间实验中进行了测试。在我们的实验中，用角鲨烯诱捕的诱捕器吸引了捕食性雄性 Chrysopa formosa。用角鲨烯和三元花饵诱捕的诱捕器吸引了 both C. formosa 和 C. carnea 复合食虫幼虫的成虫。据我们所知，这是第一个报告同时吸引 Chrysoperla 和 Chrysopa 种的诱饵组合。考虑到这些食虫幼虫成虫截然不同的饮食习惯，这一发现具有特殊意义。讨论了生物防治的潜在前景。
