Prevent mosquito bites!

1. repellent liniment, 40% DET A emulsion, applied to face, neck and hands for 2 ~ 215h; 50% mosquito repellent paper towel is applied to face, neck and hands, and the effective time is1~115 h.

Second, the analgesic cooling oil, after being bitten by midges, has a good antipruritic, analgesic and detumescence effect when applied locally.

3. Spraying screen doors and screens with 20% insecticide phosphorus (4 ml/m2)15 ~ 20 d ... ② Treating mosquito nets with permethrin (500 mg/m 2) has a good mosquito killing effect.

4. At the peak of midge activity, chemical control can be taken when necessary. For example, the preparation made of cypermethrin or deltamethrin has a good killing effect on mosquitoes and midges when it is treated with a smoke machine.

References:

Guo, Xue Wanqi. Investigation on species composition of blood-sucking midges in Hulin forest area and its control countermeasures. China Sanitary Insecticidal Machinery, 2008, 14 (5)