Penelitian Ini Bertujuan 1) Membandingkan Preferensi Dan Perilaku Pencarian Semut Rangrang (Oecophylla Smaragdhina); 2) Menganalisis Jenis Kompetitor Semut Rangrang Terhadap Pakan Tambahan; 3) Membandingkan Populasi Semut Rangrang Dan Hama Durian Sebelum Dan Sesudah Pemberian Pakan Tambahan. Parameter Pengamatan Meliputi Data Respon Dan Perilaku Aktifitas Pencarian Terhadap Pakan Tambahan. Jumlah Kunjungan Dan Jumlah Semut Yang Meletakkan Makanan Dimulut Pada 60 Menit Pertama, Kedua, Ketiga Setelah Pemberian Pakan. Jumlah Berat Makanan Setelah 60 Menit Ketiga. Membandingkan Populasi Semut Rangrang Dan Hama Idioscopus Sebelum Dan Sesudah Pemberian Pakan. Penelitian Menggunakan Rancangan Acak Kelompok Faktor Tunggal. Perlakuan Terdiri Atas G0 = Air 20 Gr, G1 = Ikan Teri 20 Gr, G2 = Pupuk Limbah Udang 20 Gr. Perlakuan Masing-Masing Diulang Sebanyak 9 Kali Sehingga Diperoleh 27 (Dua Puluh Tujuh) Unit Percobaan. Hasil Penelitian Menunjukkan Ikan Teri Lebih Disukai Oleh Semut Rang-Rang Berdasarkan Jumlah Kunjungan Dan Preferensi Semut Rangrang Terhadap Pakan Tambahan Serta Jumlah Berat Pakan Yang Diakses Semut Rangrang. Jenis Kompetitor Khususnya Family Formicidae Atau Kelompok Semut Paling Banyak Ditemukan. Jumlah Populasi Semut Rangrang Terlihat Meningkat Setelah Pemberian Pakan Tambahan Diikuti Dengan Penurunan Populasi Hama Idioscopus Setelah Pemberian Pakan.
Kata kunci: Semut rangrang (Oecophylla smaragdhina), perilaku dan preferensi, pakan alternatif, pengendalian hayati

This Research Aimed To ; 1) Compare The Preference And Search Behavior Of Weaver Ants (Oecophylla smaragdhina); 2) Analyzing The Type Of Weaver Ants Competitors To Additional Feed; 3) Comparing The Population Of Ants And Durian Pest Before And After Feeding. The Observation Parameters Are Response Data And Behavior Of Search Activity Toward The Additional Feed. The Number Of Visits And The Number Of Ants Were Putting Food In Their Mouth On 60 Minutes First, Second, Third After Feeding. Total Weight Of Food After The Third 60 Minutes. Comparing The Population Of Ants And Idioscopus Pest Before And After Feeding. The Experiment Used Single Factor Randomized Block Design, By Nine Replication. This Research Consisted Of Three Treatments, I.E : (1) G0 = Water 20 Gr; (2) G1 = Anchovies 20 Gr; (3) G3 = Shrimp Waste Fertilizer. The Result Of This Research Showed That Anchovy Is Preverred By Ants Based On Number Of Visits And Preference of Ants To Additional Feed And The Amount Of Feed Weight Accessed By The Ants. Types Of Competitor, Especially The Formicidae family Are Most Commonly Found. Populations Of Ants increase After Additional Feeding Followed By Decrease In Idioscopus pest Populations After Feeding. Keywords: weaver ants (Oecophylla smaragdhina), behavior and preference, alternative feeds, biological control