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Table 1 Percentage survival of mosquitoes following spray application of conidia retrieved from cloths that had been left under natural extra-domicile conditions for periods of 2 to 30 days

From: Monitoring persistence of the entomopathogenic fungus Metarhizium anisopliae under simulated field conditions with the aim of controlling adult Aedes aegypti (Diptera: Culicidae)

Period exposed to natural conditions (days)

% end point survival

χ2(df = 1)

p

2

28.8

31.01

< 0.0001*

6

41.1

16.5

< 0.0001*

12

48.8

9.01

0.0027*

18

60

5.26

0.0218*

24

70

0.578

0.4471

30

70

0.0004

0.9894

CONTROL$

76.6

-

-

  1. Gehan-Breslow-Wilcoxon test for pair-wise survival curve comparisons between the period the black cloths were exposed to natural conditions and control survival.
  2. *significantly different to control survival at the 5% level.
  3. $The result for the controls was the pooled value for control insects at each of the six time points and three repetitions.