Evaluation of nymphicidal and ovicidal effect of a seaweed , Padina pavonica ( Linn . ) ( Phaeophyceae ) on cotton pest , Dysdercus cingulatus ( Fab . )

@inproceedings{Sahayaraj2011EvaluationON,
  title={Evaluation of nymphicidal and ovicidal effect of a seaweed , Padina pavonica ( Linn . ) ( Phaeophyceae ) on cotton pest , Dysdercus cingulatus ( Fab . )},
  author={Kitherian Sahayaraj and Savitha Kalidas},
  year={2011}
}
Impact of brown seaweed, Padina pavonica (Linn.) chloroform, and benzene extracts were evaluated against an economically important cotton pest, Dysdercus cingulatus (Fab.) (Pyrrhocoridae). The result reveled that between the two solvents, benzene extracts of P. pavonica caused more nymphal mortality. It reduce D. cingulatus egg hatchability than chloroform extract. Benzene extract also reduced the survival rate of D. cingulatus eggs from 53.33 to 0.00 per cent for 0.025 to 0.4% concentration of… CONTINUE READING

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