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Table 1 Efficiency of different concentrations of jatropha oil on reduction percentage of Varroa mites infestation in honey bee colonies

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 Concentration Mean percentage of Varroa infestation on worker brood Mean percentage of Varroa infestation on adult workers
Mean of Varroa infestation % of Varroa reduction Mean of Varroa infestation % of Varroa reduction
Before treatment 1% 16.00 a 18.75 a
2% 25.00 a 17.50 a
5% 20.00 a 12.25 a
10% 18.00 a 10.75 a
Control 12.00 a 10.00 a
F value 1.90NS 1.13NS
First treatment 1% 9.00 a 64.47 19.00 a 34.02
2% 14.00 a 64.63 17.75 a 37.5
5% 15.00 a 52.63 22.75 a 16.07
10% 12.00 a 57.89 16.75 a 16.90
Control 19.00 a 16.50 a
F value 2.03NS 0.41NS
Second treatment 1% 9.00 b 62.5 23.50 a 48.84
2% 7.00 b 81.3 23.75 a 45.77
5% 8.00 b 73.33 18.50 a 38.35
10% 8.00 b 70.37 22.00 a 16.44
Control 18.00 a 24.50 a
F value 9.04** 0.33NS
Third treatment 1% 5.00 b 85.57 8.50 b 74.09
2% 10.00 b 81.35 8.00 b 73.87
5% 12.00 b 72.30 11.25 b 47.52
10% 9.00 b 76.92 9.25 b 50.82
Control 26.00 a 17.50 a
F value 7.65** 3.62*
Fourth treatment 1% 3.00 b 88.75 10.50 b 63.27
2% 6.00 b 85.60 4.25 c 84.07
5% 5.00 b 85.00 7.50 bc 59.85
10% 5.00 b 83.33 7.75 bc 52.63
Control 20.00 a 15.25 a
F value 15.90** 10.55**
  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