UTILIZATION OF LIQUID SMOKE BASED ON WOOD-SAWDUST AS A BIOPESTICIDE IN INHIBITING ATTACKS FROM COFFEE BORER BEETLE PEST (HYPOTHENEMUS HAMPEI)

• Main Author: Navila, Aviva
• Format: Final Project
• Language: Indonesia
• Subjects: Teknologi
• Online Access: https://digilib.itb.ac.id/gdl/view/66136
• Institution: Institut Teknologi Bandung

In an attempt to apply the biorefinery principle and use post-harvest waste in the form of sawdust from the wood processing industry, liquid smoke can be processed into a bio-pesticide to deal with the problems of coffee borer beetle pests (Hypothenemus hampei) on coffee plants. In this experiment, the factorial randomized design research method was used in vivo testing and the factorial completely randomized design was used in vitro testing with two levels of treatment factors that are the raw material type including pine wood, lebbek wood, and suren wood sawdust as bio-mass in the making of liquid smokes and the concentration variation of biopesticide from processing liquid smokes including 1,5%; 2%; and 2,5%. Meanwhile, there's a control treatment, where no liquid smoke is applied to the treatment object. Each treatment is repeated three times. The test parameters observed were analysis of the chemical and physical characteristics of liquid smoke, after that effectivity test of liquid smoke bio-pesticides against coffee borer beetle pests through pest attack test, toxicity test, and food resistance test. The test results show that the pH of liquid smoke from the lowest to the highest is suren wood, pine wood, and lebbek wood. The specific gravity of liquid smokes is all relatively the same, in the range of 1,047 – 1,055 g/cm³. The highest to the lowest percentages of acetic acid, including lebbek wood, suren wood, and pine wood liquid smokes. Meanwhile the total amount of phenol in the sample with the highest to lowest result, in a row, included pine wood, suren wood, and lebbek wood liquid smokes. Qualitatively, the results of GCMS analysis of several groups of compounds in all kinds of liquid smokes that have the potential as insecticidal compounds that are toxic to pests are acetic acid, phenol, benzofuran, cyclohexane, cyclopentane, and propanone compounds. In addition, based on the results of research on all aspects of testing against pests, it shows that pine wood sawdust with a 2,5% concentration has massive potential for the making of liquid smoke as a natural biopesticide in inhibiting the growth of coffee borer beetle pests on coffee plants.