Abstract
hama ini menyebabkan terjadinya gangguan pertumbuhan pada tanaman gaharu. Tujuan penelitian ini untuk mengetahui efikasi terhadap hama ulat. Penelitian dilakukan di laboratorium perlindungan hutan Balai Penelitian Kehutanan Banjarbaru dan areal tegakan gaharu di Kandangan dan Barabai, Kalimantan Selatan. Hasil penelitian menunjukkan bahwa insektisida berbahan aktif pada konsentrasi 0,5 gr/l dan 1,5gr/l efektif menyebabkan mortalitas larva sebesar 100% pada hari ke-3, perlakuan dan konsentrasi 1 gr/l dan 2 gr/l efektif menyebabkan mortalitas larva sebesar 100% pada hari ke-2 pada skala laboratorium. Skala lapangan menunjukkan bahwa semua konsentrasi menyebabkan mortalitas larva 100% pada hari ke-3, sementara variasi konsentrasi yang digunakan tidak berpengaruh nyata terhadap mortalitas larva pada skala laboratorium dan skala lapangan. ABSTRACT Heortia vitessoides worms attack gaharu plants in Kandangan, Regency of Hulu Sungai Selatan and Barabai, Regency of Hulu Sungai Tengah, Central Kalimantan province. This pest attack causes stunted growth of the gaharu plants. The objective of this study was to determine the efficacy of against the worm pests. The study was conducted in the protected forest laboratory of the Forest Research Institution of Banjarbaru and in the region of gaharu stands in Kandangan and Barabai, South Kalimantan. The research results showed that the insecticide with the active substance at a concentration of 0.5 g/l and 1.5gr/l effectively caused larval mortality of 100% on day 3, and the treatment with the concentration of 1 g/l and 2 g/l effectively caused 100% mortality of larvae on day 2 at the laboratory scale. At the field scale all concentrations resulted in 100% larval mortality at day 3. Variations of concentrations used did not significantly affect mortality of larvae in the laboratory and on the field. Heortia vitessoides Bacillus thuringiensis H. vitessoides B. thuringiensis Bacillus thuringiensis H. vitessoides B. thuringiensis
Cite
CITATION STYLE
Lestari, F., & Suryanto, E. (2012). EFIKASI Bacillus thuringiensis TERHADAP HAMA ULAT DAUN GAHARU Heortia vitessoides. Jurnal Penelitian Hutan Tanaman, 9(4), 227–232. https://doi.org/10.20886/jpht.2012.9.4.227-232
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