STRUKTUR KOMUNITAS HYMENOPTERA PARASITOID YANG BEASOSIASI DENGAN HAMA UTAMA TANAMAN CRUCIFERAE DAN TUMBUHAN LIAR PADA TIPE LANSKAP PERTANIAN BERBEDA

Yaherwandi, Yaherwandi and Syam, Usra (2008) STRUKTUR KOMUNITAS HYMENOPTERA PARASITOID YANG BEASOSIASI DENGAN HAMA UTAMA TANAMAN CRUCIFERAE DAN TUMBUHAN LIAR PADA TIPE LANSKAP PERTANIAN BERBEDA. Working Paper. Fakultas Pertanian. (Unpublished)

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Abstract

Hymenoptera parasitoids have an important role in agroecosystem because of their ability in suppressing pest population. Their presences in the field are seen as the key to agricultural ecosystem. Their presence can be influenced by the availability of non-crop vegetation. Some adult Hymenoptera parasitoids require food in the form of pollen and nectar of wild flowers to ensure effective reproduction and longevity. The objective of this research is to study Hymenoptera parasitoid communities in importance pest of Cruciferae field and non-crop vegetation around Cruciferae fields. Samplings were conducted at three different landscape structures, i.e. Aie Batumbuak, Batu Palano, and Cingkariang. Insects were sampled by three trapping techniques ( sweepnet, hand collect, and yellow pan traps) in one lines of transect for each landscape. Total species of Hymenoptera parasitoid have been collected in Cruciferae field and non-crop vegetation. Were 9 spescies. Landscape structure and flowering vegetation affected the species richness, diversity and evenness of Hymenoptera parasitoid in Brasicaceae non-crop vegetation. Key word: Community structure, Hymenoptera parasitoid, Landscape structure, non-crop habitat, Cruciferae

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