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LC50Lethal Concentration 50 (concentration in water having 50% chance of causing death to aquatic life)
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6) showed highest insecticidal activity with LC50 value of 0.
In this investigation, we developed a simplified bottle bioassay technique to test the exposure time--mortality relationship for multiple insecticide concentrations and determined the LC50 and LC95 (24 h mortality) values for 8 insecticides.
These C-9500A concentrations are approximations of the LC25, LC50, and LC75 at 28.
Table 2 shows that 12 extracts spread across 5 plant species exhibited LC50 values below 200 pg/mL.
Values of LC50 and EC50 published by several authors in different species of marine invertebrates and in our study are shown in Table 2.