Bioefficacy of Ethion Against Mite, Eutetranychus orientalis (Klein) and Its Residue on Pear Fruits

Out of eight treatments evaluated against Eutetranychus orientalis (Klein) on sand pear, ethion at both the doses of 0.05% and 0.075% proved equally effective even ten days after spraying. Following application of ethion at recommended dose @ 1.0 ml litre⁻¹ (0.05% ai) on pear, the initial deposit of ethion was observed to be less than its maximum residue limit of 2.0 mg kg⁻¹. However, based on acceptable daily intake (ADI) of ethion at 0.002 mg kg⁻¹, a waiting period of 10 days is recommended for safe consumption of pear fruits following application at recommended dose.