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Table 2 Geometric mean and percent control of fleas recovered in premises flea traps in naturally infested homes when dogs and cats were treated with indoxacarb or fipronil (s)-methoprene based topical spot-on formulations

From: Evaluation of indoxacarb and fipronil (s)-methoprene topical spot-on formulations to control flea populations in naturally infested dogs and cats in private residences in Tampa FL. USA

Treatment group

# homes completing study

 

Days post-treatment1

   

Day 0

Day 7

Day 14

Day 21

Day 28 – 30

Day 40 - 45

Day 54 – 60

Indoxacarb2

18

Geomean4

29.4a

8.1a

5.2a

3.8a

3.5a

0.9a

0.7a

 

% control5

 

72.4

82.4

87.2

87.9

97.0

97.7

Fipronil (s)-methoprene3

19

Geomean

25.5a

9.5a

7.5a

7.0a

10.1a

5.1b

3.9b

 

% control

 

62.6

70.4

72.4

60.3

79.9

84.6

  1. 1Dogs and cats treated on day 0 and again between days 28 – 30.
  2. 2Dogs and cats were treated topically with indoxacarb (19.53% w/w; ACTIVYL® Merck Animal Health) accordingly to label directions.
  3. 3Dogs were treated topically with fipronil (9.8% w/w)–(s)-methoprene (8.8% w/w) spot-on (Frontline®Plus; Merial) and cats were treated topically with fipronil (9.8% w/w)–(s)-methoprene (11.8% w/w) (Frontline®Plus; Merial) according to label directions.
  4. 4Geometric mean numbers of fleas recovered in two intermittent light flea traps.
  5. 5{(Day 0 geometric mean trap flea counts – day x geometric mean trap flea counts)/day 0 geometric mean trap flea counts)} x 100
  6. a,bGeometric means in a column with unlike letter superscripts are significantly different (P values ≤0.0054).