Termites are economic pests that cause great damage to different structures thus
resulting to big financial loss. Since most pesticides used nowadays have active
ingredients that give harmful effects to humans, there is a continuous search for natural
pesticides containing compounds such as terpenes to provide environmentally safe
alternatives. The effectivity of the extract was compared to negative control (distilled
water) and a positive control (Solignum). It was determined that the minimum
concentration to produce 50% mortality rate or the LC50 was 49% crude pine cone extract.
The relationship between the concentration of the extract and the mortality of the
termites is directly proportional. Paired t-test was conducted to show the relationship
between the paper consumption and mortality rate. Since the computed t stat (-3.98951)
is outside of the critical value (+/- 2.446912), there is a significant difference between the
mortality rate and consumption rate and vice versa. The Pearson correlation coefficient
(-0.60356) shows that there is a moderate correlation between mortality rate and
consumption rate. The relationship is inversely proportional because as the consumption
decreases, the mortality increases. Analysis of variation showed that there is a
significant difference between the means among the 48-53% concentrations. Which
indicates that as the concentration increases, the toxicity of the extract also increases
thus causing death of the termites. Since the toxicity increases as the concentration
increases, the mortality rate also increases. Thus, the pine cone extract can be an
effective substitute for commercially available pesticides.