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Table 1 Knockdown time 50% (KT50) for permethrin in T. infestans nymphs topically pre-treated with eugenol

From: Eugenol-hyperactivated nymphs of Triatoma infestans become intoxicated faster than non-hyperactivated nymphs when exposed to a permethrin-treated surface

Pre-treatment (topical application)

Time before exposure to a permethrin-treated filter paper (min)

KT50 for permethrin (min)

95% CI

Slope ± SE

Acetone

0

66.75a

60.43–74.43

8.99 ± 1.51

Eugenol (0.1 μg/insect)

0

46.27b

40.90–52.29

7.40 ± 1.15

Acetone

30

66.79a

62.16–71.94

12.68 ± 2.07

Eugenol (0.1 μg/insect)

30

66.79a

61.87–72.32

11.90 ± 1.98

  1. Abbreviations: KT50, knockdown time 50%; 95% CI, 95% confidence interval; SE, standard error
  2. Notes: Permethrin was applied as a film on filter paper (1840 mg/m2). KT50 values followed by different letters are significantly different (based on their respective 95% CI not overlapping; P < 0.05)