|
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**
|
–
|
- F value was determined with df (4, 15)
- NS non-significant means in a column with dissimilar letters differ significantly at 0.05 level of probability
