@article{Mala:209262,
      recid = {209262},
      author = {Mala, M. and Islam, M.M.U. and Islam, K.S.},
      title = {Residual effect of two insecticides and neem oil against  epilachna beetle, Epilachna vigintioctopunctata (Fab.) on  bitter gourd},
      journal = {Journal of the Bangladesh Agricultural University},
      address = {2012},
      number = {452-2016-35551},
      pages = {5},
      year = {2012},
      abstract = {Experiments were conducted in the Laboratory and  Entomology Field Laboratory to determine the residual  effect of
two insecticides (viz. Siperin 10EC, Malathion  57EC) and a botanical (Neem oil) against Epilachna beetle,  Epilachna
vigintioctopunctata (Fab.) during the period from  February to May 2009. To evaluate the residual effect of  one
synthetic and one organophosphors pesticides and one  botanical pesticide on the mortality of Epilachna  beetle,
different concentrations of the insecticides (1.0,  2.0 and 3.0% of Neem oil, 1.0, 1.2 and 1.5% of Malathion  and 0.5,
1.0 and 1.5% of Siperin.) was used. The mortality  of the beetles was recorded at 4, 5, 6 and 7 days after  treatments.
After 7 days the highest mortality was found on  first instar larvae (70.0 in laboratory condition and 65.0  in field
condition) treated by Siperin 10EC (1.5% conc.)  and the lowest mortality was found on adults Epilachna  beetle (17.5
in laboratory condition and 15.0 in field  condition) treated by Neem oil (1.0% conc.) The results  indicated that Siperin
10EC has longer residual effect than  Malathion 57EC and Neem oil. The effectivity ranked:  Siperin > Malathion >
Neem oil.},
      url = {http://ageconsearch.umn.edu/record/209262},
      doi = {https://doi.org/10.22004/ag.econ.209262},
}