CL50 (ng/ul/bee)

Acetamiprid

Cypermethrin

Time (Hours)

1

4

24

1

4

24

Direct contact

20.99a

7.41a

5.26a

52.48b

3.57 a

2.27a

Indirect contact

43.19b

6.79a

4.70a

27.27a

3.15a

2.68a