THE TESTING OF GINGER, TURMERIC AND GALANGAL POWDER ON THE MORTALITY OF THE RICE WEEVIL (Sitophilus oryzae)
Abstract
One product that is environmentally friendly and does not poison consumers is the use of plant-based materials known as biopesticides that come from plant-based materials. The aim of this research is to determine the mortality rate of rice weevil treated with ginger, turmeric and galangal powder either singly or in combination. The research was carried out at the Banjarnegara Polytechnic Integrated Laboratory. A total of 20 rice weevil imagoes resulting from breeding were infested in a jar containing 100 g of rice. The research used a completely randomized design with 7 treatments in the form of A0: control; A1: ginger powder 15 g; A2: turmeric powder 15 g; A3: galangal powder 15 g; A4: ginger powder 7.5 g and turmeric powder 7.5 g; A5: ginger powder 7.5 g and galangal powder 7.5 g; A6: turmeric powder 7.5 g and galangal powder 7.5 g. Each treatment used 4 replications so there were 28 research units. The data obtained for each parameter was analyzed using the F test, if significantly different, continued with the Duncan test at the 5% level. The use of ginger, turmeric and galangal powder, whether applied singly or in combination on rice weevil, was not able to increase the mortality rate in all treatments at 1, 2, 3 and 4 weeks after treatment. The percentage of yield loss shows that in treatments A0, A1, A2, A3, A4, A5, and A6 respectively, namely 0%; 3.75%; 3.75%; 10.00%; 11.25%; 5.00%; and 16.25%. The percentage of damaged rice weight shown in treatments A0, A1, A2, A3, A4, A5, and A6 respectively was 5.00%; 10.00%; 8.75%; 15.00%; 23.75%; 8.75%; and 25.00%.
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