Keanekaragaman Hymenoptera Parasitoid pada Berbagai Ekosistem Pertanian di Sumatera Barat” telah dilaksanakan di Sungai Sapiah, Kayu Tanduak dan Alahan Panjang dari bualan April sampai dengan Oktober 2007.

Hamid, Hasmiandi (2008) Keanekaragaman Hymenoptera Parasitoid pada Berbagai Ekosistem Pertanian di Sumatera Barat” telah dilaksanakan di Sungai Sapiah, Kayu Tanduak dan Alahan Panjang dari bualan April sampai dengan Oktober 2007. Project Report. LP Unand. (Unpublished)

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Abstract

Understanding how the landscape structure affect the interaction between crops, pests and their natural enemies is a complex problem that can significantly impact on the success or failur of insect biological control. Hymenoptera parasitoid are particularly important natural enemies because of their great diversity and effectiveness as agents of biological control. The objective of this research is to study the diversity of Hymenoptera parasitoid on some vegetables and rice ecosystem in West Sumatera. Hymenoptera parasitoid were sampled using three trapping techniques (farmcop, insect net and yellow pan trap). Species accumulative curves, Jackknife-1 estimator, dan indices of diversity were applied to analyze the data. Results indicated that there were 1522 specimen consist of 22 family and 148 species of Hymenoptera parasitoid on agricultural ecosystem in west Sumatera. Braconidae and Ichnemonidae were dominance of Hymenoptera parasitoid family in vegetables ecosystem. Contras, Mymaridae, Diapriidae, and Eulophidae were dominance of Hymenoptera parasitoid famili in rice ecosystem. Diversity of Hymenoptera parasitoid were found to be influenced by the landscape structure. Species richness and diversity were higher in polyculture ecosystem than monoculture. Key words: Monoculture, polyculture, Hymenoptera, parasitoid, landscape

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