Table 2

Result from a pilot study including 5 herds that were treated to eradicate lice in December 1993.

Herd
Size (no. dairy cows)
Herd characteristic
Lice infestations before medication
Medicament
Lice present after medication











March 1994
March 1995
March 1996

A
25
Open herd: Purchasing livestock Using common pasture
D. bovis L. vituli
Flumethrin
No lice
No lice
No lice
B
16
Closed herd
D. bovis
Deltamethrin
No lice
No lice
No lice
C
10
Open herd: Using common pasture
D. bovis
Deltamethrin
No lice
D. bovis
D. bovis
D
20
Open herd: Purchasing livestock
L. vituli
Deltamethrin
No lice
No lice
No lice
E
40
Open herd: Purchasing livestock
D. bovis L. vituli
Flumethrin
No lice
No lice
D. bovis L. vituli

Nafstad and Grønstøl Acta Veterinaria Scandinavica 2001 42:81   doi:10.1186/1751-0147-42-81