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Table 3 Mean counts of and efficacy against adult and immature stages of R. sanguineus group ticks during the treatment period

From: Efficacy of an imidacloprid/flumethrin collar against fleas, ticks and tick-borne pathogens in dogs

Tick stage

Groups

Mean

2011

2012

Day 0

May

*Jun 1

*Jun 2

Jul

Aug

Sep

Oct

Nov

Jan

Feb

Mar

Apr

Adult

A

Arithmetic

37.5

0.2

0.2

0.1

0

0.1

0

0

0

0

0

0

0

 

Geometric

19.3

0.1

0.1

0.1

0

0.1

0

0

0

0

0

0

0

B

Arithmetic

56.9

49.9

51.3

3.1

2.8

4.7

1.7

0.2

0.3

0.1

0.2

1.3

13.1

 

Geometric

22.8

19.8

39.8

2.0

1.1

3.0

1.1

0.1

0.2

0.1

0.1

0.8

10.0

Efficacy Ar. mean (%)

-

99.6

99.6

96.7

100

97.9

100

100

100

100

100

100

100

Efficacy Ge. mean (%)

-

99.5

99.8

95.0

100

96.7

100

100

100

100

100

100

100

Immature

A

Arithmetic

0.1

0

0

0

0

0

0

0

0

0

0

0

0

Geometric

0.1

0

0

0

0

0

0

0

0

0

0

0

0

B

Arithmetic

0.1

1.8

4.3

106.3

0

0

0.3

0.1

0

0

0

0

4.5

Geometric

0.1

0.8

2.8

25.7

0

0

0.2

0.1

0

0

0

0

2.6

Efficacy Ar. mean (%)

-

100

100

100

n.a.

n.a.

100

100

n.a

n.a

n.a

n.a

100

 

Efficacy Ge. mean (%)

-

100

100

100

n.a

n.a

100

100

n.a

n.a

n.a

n.a

100

  1. *Sampling occurred in monthly intervals. As it was conducted at beginning and end of June, June appears twice.
  2. Abbreviations: n.a. not applied, Ar. arithmetic, Ge. geometric.