EPA-Exempt 25(b) natural oil products Cedar Safe and Essentria IC3 were assessed for control of Ixodes scapularis and Amblyomma americanum (nymphs and adults) with the fieldbased ARENA methods. References and positive controls of Mavrik Perimeter and Talstar (Granular) were used to compare overall efficacy of the assessed natural control products. Reference ARENA tick recovery rates averaged 82% across all species and tick stages assessed for the initial stages of this highly accurate, field based assessment of tick control products.