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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.