Preferensi Oviposisi Papilio demoleus L. (Lepidoptera: Papilionidae) pada Tiga Jenis Tanaman Jeruk (Citrus spp.)

The Ovoposition Preference of Papilio demoleus L. (Lepidoptera: Papilionidae) on the Species of Citrus (Citrus spp.)ABSTRACT. This research about the oviposition preference of Papilio demoleus Linnaeus on three species of citrus (Citrus spp.) has been done in butterflies encagement in FMIPA Syiah Kuala University Darussalam, Banda Aceh from April to July 2003. This research used experimental method by completely randomized design with three treatment and four replication. The treatment are jeruk siem (Citrus nobilis Lour), jeruk kasturi (Citrus milis Blanco), and jeruk nipis (Citrus aurantifolia Swingle). The observation was held from 8 o’clock until 16 o’clock for the number of eggs laying to each species of citrus. The result shown that the number of eggs laying indicate no significant on all species of citrus and between the number of eggs laying on the stem and another part around the host plant. A number of eggs laying under the surface of the leaves are more and significant from a number of eggs laying on the surface of the leaves. The eggs laying activity of P. demoleus started from 10 in the morning when the surrounding physical factor has supported for the butterflies to lay done its eggs. Activity get the point of culmination when observed at 12 o’clock