Efficacy of Fig Leaf Crude Extract in Controlling the Starch Weevil

  • Kanokkwan Na Thakuathung
  • Malini Homhoun
  • Suwaiya Benyamean
  • Thatchaporn Chaicharoen
  • Warangkana Thongnoppakun
  • Aim-on Naklong
Keywords: ethanol soxhlet extraction, rough extracts, toxicity (LC50), Fig leave, red flour beetle


This research aimed to analyze Repellent effect of rough extracts of Fig leaves for controlling Red Flour beetle. Fig leaves were extracted using Ethanol soxhlet extraction method at three different concentrations as 0.5, 5 and 10% (mass per volume). Data collection and data analysis were including repellent efficiency, effective killing and toxicity (LC50) that applied in a glass plate as Petri-dish Choice Bioassay. Statistical analysis consisted of variance analyze using one-way ANOVA and Duncan’s New Multiple Range Test (DMRT) methods with program SPSS. Research results found that Fig leave rough extracts had significant different repellent effective of Red flour beetle (p≤0.05). The 10% Fig rough extract had the highest average repellency as 80.67% and the least effective extracts were Fig rough extract at 0.5% concentration (56.67% average repellency percentage). Secondly, the study of killing efficiency of 0.5, 5 and 10% Fig rough extracts had 73.33, 76.67 and 87.67% cumulative mortality rates at 96 hours. The study of Accumulative mortality over time, it was found that there was significant different mortality percentage of Red flour beetle at different times. For instance, LC50 was 0.006 g/ml at 96 hours that less than LC50 at 72 hr (0.456 g/ml). In summary, it concluded that the 10% rough extract of Fig leaves had the most Repellent effect on Red Flour beetle.