Research Article

Toxicity of Commercial Neem Extract to Earthworms (Pheretima peguana)

Table 1

Change in coelomocyte numbers and coelomocyte viability of Pheretima peguana exposed to commercial neem extract (NEEM) containing Aza in a 48-h filter paper study.

NEEM containing Aza concentration ( g cm−2) No. of coelomocytes × 106/body weight (mean ± SEM)Coelomocyte viability (%)

0 (control)3 100
0.393
0.783
1.573
2.353
3.133