Author(s): Alimul Islam, Tandid Kamal, Monoar Hosen, Nazia Sharmin, Shahadat Hossain and Nurul Islam*
Abstract
Title: Control potentials of ornamental indoor plant
Epipremnum aureum (Linden & Andre) G. S. Bunting against three stored product pests
Author(s): Alimul Islam, Nazia Sharmin, Monoar Hosen, Tandid
Kamal, Zaidur Rahman Sabuj and Nurul Islam*
Abstract
Petroleum ether (Pet. ether), chloroform (CHCl3) and
methanol (CH3OH) extracts of test plant Epipremnum aureum (Linden & Andre)
G. S. Bunting have been subjected to dose-mortality and repellent activity
tests against adult beetles of Tribolium castaneum (Hbst.), Sitophillus oryzae
and Callosobruchus chinensis (L.). The Pet. ether extract of E. aureum offered
mortality to T. castaneum, S. oryzae and C. chinensis. Pet. ether extract of E.
aureum gave the LD50 values 1.40, 1.21, 1.16, 1.10, 1.04, 0.96 and 0.84mg/cm2
against T. castaneum; 1.73, 1.66, 1.32, 1.08, 1.00, 0.99 and 0.90mg/cm2 against
S. oryzae; 2.95, 2.02, 2.01, 1.91, 1.82, 1.72 and 1.65mg/cm2 against C.
chinensis after 6, 12, 18, 24, 30, 36 and 42h of exposure respectively. In this
dose-mortality investigation, lethal activity of Pet. ether extract of E.
aureum was found according to the descending order T. castaneum> S.
oryzae> C. chinensis. CHCl3 and CH3OH extracts of this plant did not show
any mortality against T. castaneum, S. oryzae and C. chinensis. In repellency
tests, Pet. ether and CHCl3 extracts of E. aureum was found to show significant
repellent activity against the adult beetles of T. castaneum and C. chinensis.
The activity of Pet. ether extract of E. aureum found significant repellent
activity against T. castaneum and C. chinensis at 5% level of significance
(P<0.05). CHCl3 extract of E. aureum showed significant repellent activity
against T. castaneum and C. chinensis at 1% level of significance (P<0.01)
and at 5% level of significance (P<0.05) respectively. However, the CH3OH
extract of E. aureum did not show repellent activity against T. castaneum, S.
oryzae and C. chinensis.