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Egyptian Journal of Biological Pest Control

Table 2 Mean numbers of dead larvae, infested areas, and numbers of infested tunnels/colony caused by the greater wax moth, G. mellonella in treated and untreated stored wax combs

From: Efficacy of the larval parasitoid, Bracon hebetor Say. (Hymenoptera: Braconidae) on the greater wax moth larvae, Galleria mellonella (L.) (Lepidoptera: Pyralidae) under laboratory and field conditions

Month Week No. of survival larvae/wax combs Infested areas of larvae (inch2)/wax combs No. of infested tunnels/wax combs
Treated Untreated (formic acid) Treated Untreated (formic acid) Treated Untreated (formic acid)
September, 2018 1st week 5.3 ± 2.5 12 5.0 ± 3.6 7 2.3 ± 2.5 5
2nd week 5 ± 1.0 5 4.7 ± 0.6 3 5.3 ± 0.6 3
3rd week 3.3 ± 3.5 8 1.3 ± 0.6 4 1.0 ± 1.0 3
4th week 5.3 ± 4.7 20 3.0 ± 5.2 15 5.0 ± 4.4 20
Mean/month 4.75 ± 0.3A 11.25 ± 6.5 3.5 ± 0.9A 7.3 ± 5.4 3.4 ± 0.8A 7.8 ± 8.2
October 1st week 9.7 ± 4.5 11 5.0 ± 5.0 12 6.0 ± 5.2 9
2nd week 5.3 ± 2.5 8 0.0 ± 0.0 3 0.7 ± 0.6 0
3rd week 3.7 ± 4.7 11 4.0 ± 3.6 7 3.0 ± 3.6 5
4th week 5 ± 5.0 23 1.0 ± 1.7 10 3.0 ± 3.0 23
Mean/month 5.9 ± 3.1A 13.25 ± 6.7 2.5 ± 2.5A 8.0 ± 3.9 3.2 ± 0.4A 9.3 ± 9.9
November 1st week 0.0 ± 0.0 10 0.0 ± 0.0 1 0.0 ± 0.0 7
2nd week 3.7 ± 4.6 13 0.0 ± 0.0 2 2.3 ± 2.1 0
3rd week 12.7 ± 3.1 21 0.0 ± 0.0 0 0.3 ± 0.6 0
4th week 5 ± 5.0 20 1.0 ± 1.7 12 3.0 ± 3.0 18
Mean/month 5.3 ± 2.0A 16 ± 5.4 0.3 ± 0.4B 3.8 ± 5.6 1.4 ± 0.1B 6.3 ± 8.5
December 1st week 0 ± 0.0 10 0.0 ± 0.0 1 0.0 ± 0.0 7
2nd week 2.3 ± 1.2 1 0.0 ± 0.0 0 2.3 ± 1.2 1
3rd week 0.3 ± 0.6 4 0.0 ± 0.0 2 0.0 ± 0.0 4
4th week 1 ± 1.0 0 0.0 ± 0.0 0 0.0 ± 0.0 0
Mean/month 0.9 ± 0.1B 3.75 ± 4.5 0.0 ± 0.0B 0.8 ± 1.0 0.6 ± 0.3C 3.0 ± 3.2
January, 2019 1st week 1.3 ± 0.6 2 0.3 ± 0.6 0 0.0 ± 0.0 0
2nd week 0 ± 0.0 5 0.0 ± 0.0 0 0.0 ± 0.0 4
3rd week 2.7 ± 4.6 0 0.7 ± 1.2 0 2.7 ± 4.6 0
4th week 1.7 ± 2.9 0 0.0 ± 0.0 0 0.0 ± 0.0 0
Mean/month 1.42 ± 1.1B 1.75 ± 2.4 0.3 ± 0.4B 0.0 ± 0.0 0.7 ± 1.2C 1.0 ± 2.0
February 1st week 0.3 ± 0.6 2 0.0 ± 0.0 0 0.3 ± 0.6 0
2nd week 2 ± 2.0 33 1.3 ± 1.2 13 0.3 ± 0.6 23
3rd week 0.7 ± 1.2 3 0.0 ± 0.0 0 0.0 ± 0.0 0
4th week 0.3 ± 0.6 1 0.0 ± 0.0 0 0.3 ± 0.6 1
Mean/month 0.83 ± 0.9B 9.75 ± 15.5 0.3 ± 0.3 B 3.3 ± 6.5 0.3 ± 0.3C 6.0 ± 11.3
General mean 3.2 ± 2.38b 9.3 ± 5.52a 1.1 ± 1.48b 3.8 ± 3.27a 1.6 ± 0.12b 5.5 ± 3.0a
L.S.D (0.05) 0.965   0.61   0.499  
  1. Means in the same row or the same column which have the same letter, are not significantly differed at 0.05 level of probability
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