The natural products of plants come as an alternative ecologically more compatiblein substitution to the synthetic insecticides. This study had the objectiveto evaluate the action of 85% Sirinol ® EC (5% of alicin extracted fromgarlic bean, 75% of fuel oils, 20% of surfactant and retentive) on Rhizoperthadominica (F.) and Sitophilus oryzae (L.) in the adult phase in stored wheat,through the assessment of repellent effect on exposed individuals to wheatgrains treated. Therfore, adults of R. dominica and S. oryzae through the useof two methods â€Petriâ€dishes and olfactometer Y shape tube†were exposedto 0.5, 1, 5 and 10% concentration of Sirinol ® and Percentage Repellency(PR) was determined. In each of two methods, the maximum PR of Sirinol ®was at concentration of 10%, with the recorded values 71.58% and 50.26%for adults of R. dominica and, 75.79 % and 62.96% for S. oryzae in Petridishesand Y †shape olfactometer tube methods, respectively. It was shownthat S. oryzae were more sensitive to Sirinol® than R. dominica. The interactionbetween concentration and time (concentration × time) was not significantfor adults of two species.
Efficacy of Phytoextracts against Lesser Grain Borer, Rhizopertha dominica (Fab.) (Coleoptera: Bostrichidae) in Stored Wheat
