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Table 2 Effect of different concentrations of the jatropha oil on the mean number of dead Varroa mites and adult bee fallen on the sheet

From: Evaluating the impact of jatropha oil extract against the Varroa mite, Varroa destructor Anderson & Trueman (Arachnida: Acari: Varroidae), infesting honeybee colonies (Apis mellifera L.)

Treatment Concentrations No. of Varroa mites No. of dead bees
   24 h 48 h 15 days Total 24 h 48 h 15 days Total
Before treatment 1% 7.75 a 7.75 0.0 0.0
2% 10 a 10 0.0 0.0
5% 11.75 a 11.75 0.0 0.0
10% 8.75 a 8.75 0.0 0.0
Control 5 a 5 0.0 0.0
F value   1.89NS        
First treatment 1% 6.5 a 6 ab 16.5 a 29 0.0 0.25 0.0 0.25
2% 11.25 a 10.75 a 25.25 a 47.25 0.0 1.0 0.0 1.0
5% 9.75 a 11 a 19.25 a 40 0.0 0.25 0.0 0.25
10% 10.5 a 8.5 ab 24.25 a 43.25 0.0 0.5 0.0 0.5
Control 3.5 a 3.75 b 12.75 a 20 0.0 0.0 0.0 0.0
F value   2.95NS 3.19* 0.80NS      
Second treatment 1% 7.75 b 8.25 a 21 a 37 0.5 0.0 0.0 0.5
2% 15 ab 14.25 a 24.75 a 54 0.75 0.0 0.0 0.75
5% 17.25 a 14.5 a 27.5 a 59.25 0.50 0.0 0.0 0.50
10% 15 ab 14 a 24.25 a 53.25 0.25 0.25 0.0 0.50
Control 14.5 ab 14.25 a 21 a 49.75 0.25 0.0 0.0 0.25
F value   1.61NS 1.62NS 0.30NS      
Third treatment 1% 7 b 9.25 b 10.25 a 26.5 0.25 0.0 0.0 0.0
2% 13.25 ab 10.25 b 21.25 a 44.75 0.25 0.0 0.1 0.35
5% 11.5 ab 12 b 23.75 a 47.25 0.0 0.0 0.5 0.5
10% 11.75 ab 11 b 24.5 a 47.25 0.25 0.25 0.5 1.0
Control 16.5 a 17 a 23.5 a 57 0.0 0.0 0.75 0.75
F value   3.10* 3.77* 1.39NS      
Fourth treatment 1% 7.5 b 9.5 b 7.25 b 24.25 0.0 0.0 0.0 0.0
2% 8.25 b 9.75 b 11.75 b 29.75 0.25 0.0 0.0 0.25
5% 15.25 a 9.25 b 11.25 b 35.75 0.0 0.25 0.0 0.25
10% 10.5 ab 9.75 b 11 b 31.25 0.0 0.25 0.0 0.25
Control 15.5 a 17.25 a 19.5 a 52.25 0.0 0.0 0.0 0.0
F value   5.25** 11.86** 5.39*      
  1. F value was determined with df (4, 15)
  2. NS non-significant means in a column with dissimilar letters differ significantly at 0.05 level of probability