" The Potentials of Onion Shallot (Allium ascalonicum) as Insecticide"

The potentials of onion shallot plant extract was conducted on two species of ants, Solenopsis molesta and Pogonomyrmex barbatus to find out the level of toxicity using percent mortality, determine which concentration is most effective and compare the level of toxicity with water-based commercial insecticide spray. The experiment was laid in a Completely Randomized Design (CRD) with four treatments, T1 (control), T2 (25% extract), T3 (33% extract) and T4 (50%) replicated three times with 10 ants/species in each. Results using the standard Abbott's formula showed that 100% of S. molesta died after the administration of Raid water base commercial insecticide spray (T1) followed by T4 and T3 with percent mortality of 56.67% and 53.34%, respectively. Treatment 2 has the lowest percent mortality (50%). The different concentrations of onion shallot plant extract were considered as effective insecticide for S. molesta only but ineffective for P. barbatus. Statistical analysis using ANOVA revealed highly significant difference on percent mortality of S. molesta among treatments, however, the three treatments (T2,3 and 4) were comparable as to effectiveness.