The effect of the extract alkaloid compounds for residue of the tobacco plant Nicotiana tabacum in the roles of others amounting to insect dates moth Ephestia cautella (Walker) *

Abstract

Series experiments were conducted to evaluate the effectiveness of the crude  extract of alkaloid compounds of residue of the tobacco plant Nicotiana tabacum in the mortality of  Ephestia cautella.

The highest mortality  rate of  the larval stages was 90% of when the extract used in at 10% concentration after 48 hours, compared with 26.56,26.56,17.70, 17.70,17.70%  in the larval stage 1^st ,2^nd ,3^rd ,4^th ,5^th , respectively, of the control treatment.  It was found a linear correlation between the mortality rates with increasing the concentration of the extracts.

Pupal mortality rates  increased from  17.70 % in the control treatment to 90% at all concentrations of the extracts.