Research on the toxicity of n-hexane extract of Albizia falcataria sawdust against Hypothenemus hampei has been conducted. The method of research was contact method. The concentrations used in the experiment were control (aquadest); 0.25%; 0.5%; 1%; 2%; and 4%. Every concentration was sprayed on the female imago. Observations were performed 120 hours after treatment. The results showed that there was an effect of the length of observation time and concentration on the mortality of H. hampei (GLM Test α= 5%). The time of observation and concentration of A. falcataria sawdust n-hexane extract has positive correlation on H. hampei mortality. Therefore, the longer the treatment time, the more H. hampei mortality is increased. The mortality of H. hampei also increased with increasing concentration given. At a concentration of 4%, extract of A. falcataria sawdust has high toxicity which causes the highest mortality (> 92%). ABSTRAKPenelitian tentang toksisitas ekstrak n-heksana serbuk gergaji Albizia falcataria terhadap Hypothenemus hampei telah dilakukan. Metode penelitian menggunakan metode racun kontak. Konsentrasi yang digunakan pada uji penelitian yaitu kontrol (aquades); 0,25%; 0,5%; 1%; 2%; dan 4%. Setiap konsentrasi disemprotkan pada tubuh imago betina. Pengamatan dilakukan selama 120 jam setelah perlakuan. Hasil penelitian menunjukkan bahwa terdapat pengaruh lama waktu pengamatan dan konsentrasi terhadap mortalitas H. hampei (Uji GLM α= 5%). Waktu pengamatan dan konsentrasi ekstrak n-heksana serbuk gergaji kayu A. falcataria berbanding lurus terhadap mortalitas H. hampei, sehingga semakin lama waktu perlakuan, mortalitas H. hampei semakin meningkat. Mortalitas H. hampei juga semakin meningkat dengan meningkatnya konsentrasi yang diberikan. Pada konsentrasi 4%, ekstrak sebuk gergaji kayu A. falcataria memiliki daya racun yang tinggi sehingga menyebabkan kematian tertinggi (> 92%).
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