The impact of four pesticides on the earthworm lumbricus terrestris (annelida : oligochaeta)‎

الملخص EN

The influence of four pesticides (Cyren, Ridomil, Triplen and Mamba) on Lumbricus terrestris earthworm for 4 weeks was studied in the laboratory.

Results indicates that there are loss of weight in all cultures, signs and symptoms of toxicity like,coiling,body swollen, sluggish movement and discharge of coelomic fluid were observed .

Significant decrease in total sperm numbers were observed at the end of study period.

The present study indicates that among the four pesticides tested Cyren is most toxic to earthworm Lumbricus terristris causing sever mortality, while Triplen and Mamba are moderately toxic and Ridomil was the least toxic pesticide.