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               Diversity of hymenoptera parasitoid in organic and
               conventional arabica coffee plantations in aceh tengah

               district, aceh province, indonesia


                                                             2
                                      1
                                                2
                              Saifullah , H Husni , J Jauharlina , S Hamdi 3
                              1  Master Program of Agroecotechnology, Agriculture Faculty, Universitas Syiah
                              Kuala, Banda Aceh, 23111, Indonesia
                              2  Plant Protection Dept., Agriculture Faculty, Universitas Syiah Kuala, Banda
                              Aceh, 23111, Indonesia
                              3  Aceh Tengah District Plantation and Forestry Service, Takengon, Indonesia

                              E-mail: husnimusannif@unsyiah.ac.id

                              Abstract. This research is a descriptive exploratory study.  The purpose of this study was to
                              determine the diversity of parasitoids found in coffee plantations that are managed organically
                              and  conventionally.  Sampling  was  done  by  setting  traps  in  two  plots  in  each  organic  and
                              conventional coffee plantation.  The traps used are yellow pan traps, pitfall traps, malaise traps
                              and light traps. Based on statistical analysis shows that the composition and diversity of the
                              Hymenoptera parasitoid in arabica coffee plantations in Aceh Tengah District is influenced by
                              coffee cultivation techniques (organic and conventional).  In organic coffee plantations found a
                              higher  number  of  families,  species  richness  and  the  number  of  individual  Hymenoptera
                              parasitoid compared to conventional coffee plantations. In organic coffee plantations, 8 families
                              and 15 Hymenoptera parasitoid species were found, while in conventional coffee plantations 4
                              families and 10 Hymenoptera parasitoid species were found.  The parasitoid species diversity
                              index value (H') in organic coffee plantations was better than conventional coffee plantations.
                              The results also showed that the evenness index value (E) on organic and conventional coffee
                              plantations was relatively more likely (not statistically different) and to be classified as good
                              categories. This indicates that there are several families of the Hymenoptera order that dominate
                              both in organic coffee plantations and conventional coffee plantations, namely the Braconidae
                              and Ichneumonidae families. The low diversity of the Hymenoptera parasitoid in conventional
                              coffee plantations is thought to be a result of the continued application of synthetic pesticides,
                              thus affecting the extinction of various parasitoid species.



























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