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Table 5 Effect of deltamethrin and flumethrin as main treatment in eradication of lice in 33 dairy herds.

From: Eradication of Lice in Cattle

Medicament No. herds 3–6 months after the eradications   15–18 months after the eradications  
   Free Lice present Free Lice present
Deltamethrin 17 14 3 9 3+5
Flumethrin 16 14 2 10 2+4