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Table 4 Mean area of sealed worker brood (inch2) and number of combs covered with bees in honeybee colonies treated by different concentrations of the jatropha oil

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.)

No. of treatments

Area of worker brood (inch2)/colony

Number of combs covered with bees/colony

Jatropha oil concentrations

F value

Jatropha oil concentrations

F value

1%

2%

5%

10%

Control

1%

2%

5%

10%

Control

Before treatment

28.25 a

27.25 a

23.75 a

23.75 a

28.00 a

0.34NS

3.25 a

2.75 a

3.00 a

3.00 a

3.25 a

1.16NS

First treatment

30.25 a

26.50 a

26.75 a

31.25 a

32.25 a

0.25NS

3.25 a

3.00 a

2.75 a

3.00 a

3.00 a

1.25NS

Second treatment

22.00 a

12.75 a

15.50 a

19.25 a

18.50 a

0.82NS

2.50 a

2.50 a

2.25 a

2.25 a

2.25 a

0.26NS

Third treatment

45.25 a

36.00 a

28.25 a

38 a

28.25 a

0.72NS

3.25 a

2.75 a

2.75 a

2.75 a

2.50 a

1.12NS

Fourth treatment

75.75 a

77.50 a

53.75 a

57.50 a

42.00 a

0.87NS

4.00 a

3.50 a

3.25 a

3.25 a

3.25 a

0.48NS

  1. NS non-significant means in a row with dissimilar letters differ significantly at 0.05 level of probability