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Table 4 Per cent in vitro mortality of laboratory and field isolates of Dermanyssus gallinae exposed to spinosad

From: In vitro activity of fluralaner and commonly used acaricides against Dermanyssus gallinae isolates from Europe and Brazil

Isolate

Concentration (ppm)

2.0

3.9

7.8

15.6

31.2

62.5

125

250

500

1000

2000

4000

Lab 1

4.1

6.1

5.5

6.2

1.8

7.0

14.2

10.8

9.2

27.2

63.7

92.5

Lab 2

        

29.9

54.6

76.4

93.5

2

       

43.2

55.7

76.5

92.9

94.5

3

       

24.7

40.5

61.0

68.9

72.0.

4

         

85.4

90.3

94.7

5

         

84.8

90.3

96.0

6

         

80.5

91.0

97.8

7

         

89.8

98.4

99.0

8

         

99.4

100

100

9

         

97.7

100

100

10

         

74.4

95.0

100

11

         

79.1

89.6

100

12

         

39.5

81.5

100

  1. Commercial rate for application of spinosad is c.2000–4000 ppm
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