Research Article

Toxicity of Commercial Neem Extract to Earthworms (Pheretima peguana)

Table 3

Comet assay results in Pheretima peguana coelomocytes following a 48-h exposure to commercial neem extract (NEEM), pure Aza, and Cd in filter paper.

Chemical agentConcentration ( g cm−2) Tail DNA% (TD%)DNA tail length (TL)DNA tail moment (TM)

Negative control03
Positive control (Cd)0.013 * *
Pure Aza0.093
NEEM0.393
0.783
1.573
2.353
3.133

Within a column data (mean ± SEM) marked with asterisks are significantly ( ) different from the control.