Abstract
Bogor and its surrounding area is known as one of the region in West Java that has high diversity of horticultural plants that may have an affect on fruit fly diversity. Research on fruit fly diversity is not merely provide information on the species richness of fruit flys but also provide information on its distribution and dispersion. The aim of this research was to investigate the diversity and distribution of fruit flies species and their hosts in Bogor and its surrounding area. Fruit flies were collected from 119 sampling areas in Bogor Cianjur, Bekasi and Depok. Fruit flies were sampled using two methods, i.e. host rearing and trapping. Traps were modified from Lynfield traps and combined with two different attractants, i.e. metil eugenol (ME) and Cue lure (CL). We found 18 species of fruit flies collected from traps and 24 host plants. The result showed that distribution, diversity and abundance of fruit flies was influenced by the diversity of host plants.
Highlights
Bogor and its surrounding area is known as one of the region in West Java that has high diversity of horticultural plants that may have an affect on fruit fly diversity
Fruit flies were collected from 119 sampling areas in Bogor Cianjur, Bekasi and Depok
Traps were modified from Lynfield traps and combined with two different attractants, i.e. metil eugenol (ME) and Cue lure (CL)
Summary
Area dan waktu pengambilan sampel Area sampling pada penelitian ini adalah Kabupaten Bogor dan beberapa wilayah yang berbatasan dengan Kabupaten Bogor secara geografis, yaitu Depok, Cianjur dan Bekasi (Gambar 1), sedangkan berdasarkan ketinggian dan morfologi wilayahnya, area sampling ini terbagi atas beberapa kategori area, yaitu dataran tinggi (501-1.000 m dpl), dataran bergelombang (101-500 m dpl) dan area dataran rendah (50-100 m dpl) (Tabel 1). Metode pemeliharaan inang Pengambilan contoh dilakukan dengan mengumpulkan buah-buahan dan sayuran yang terindikasi terserang lalat buah, yaitu berupa buah yang gugur. Buah dan sayuran yang didapatkan diletakkan dalam wadah plastik yang telah diisi dengan tanah steril dan kemudian ditutup dengan tutup plastik beralas kasa dengan pori kecil. Wadah plastik diletakkan di ruang pemeliharaan dengan suhu yang disesuaikan dengan suhu optimum bagi perkembangan lalat buah, yaitu berkisar antara 27-30 °C. Setelah 1014 hari, pupa lalat buah diambil dan diletakkan di dalam wadah kemudian ditutupi dengan pasir yang telah disterilisasi. Pada bagian atas kasa diletakkan busa yang mengandung madu yang telah diencerkan. Kemudian pada bagian dasar botol dilubangi dan digunakan untuk menggantungkan benang yang terikat dengan kapas yang berukuran 3 cm. Perangkap Lynfield diletakkan di bawah kanopi tanaman buah dengan tinggi 1,5 m dari permukaan tanah (Hasyim et al 2006).
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