maintaining a lethal concentration at which 50% of the larvae were killed (LC50) of 61 to 111 ng 100 μl−1 of soil suspension throughout 195 d of incubation.
maintaining a lethal concentration at which 50% of the larvae were killed (LC50) of 61 to 111 ng 100 μl−1 of soil suspension throughout 195 d of incubation.