Method for improving organophosphorus pesticide resistance of silkworms

The invention discloses a method for improving the organophosphorus pesticide resistance of silkworms, which comprises the following steps: first, preparing nanometer oxide into an additive solution with the concentration of 5.0+/-0.5 mg/L; second, spraying the additive solution on proper mature leaves according to the use dosage that 1.0+/-0.2 L of additive solution is added on the mulberry leaves of 100 kg; and finally, adding the silkworms after the mulberry leaves are dried. According to the utility model, based on the biological functions of nanometer oxides and physiological features of the silkworm, the additive containing a plurality of nanometer oxides are prepared for the silkworms, the raw materials are wide in source, and the cost is low. The method has the advantages of strong enabling performance, convenience in operation, and obvious effect, and therefore is suitable for being applied in silkworm areas in our country.