Effects of crude alkaloid compounds extract of Ammi majus leaves and flowers on some aspects of biological performance Oryzaephilus surinamensis (Coleoptera: Silvanidae)

Abstract

This in vitro study evaluated the effects of crude alkaloid compounds extract of plant A. majus leaves and flowers on some biological performance aspects of the insect. The results showed that the alkaloid extract of flowers at concentrations of 10, 20 and 30 mg/ml significantly affected cumulative mortality at the different stages. The concentration ( 30) mg/ml had the most noticeable effects, causing the highest mortality rate in the second and fourth larval instars (86.7 and 73. 3 %, respectively) after 72 hours. At the same time, the mortality rates upon applying the same concentrations but of the alkaloid extract of the leaves were 73.3, and 53.3 %, respectively, following 72 hours of treatment. Keywords: Oryzaephilus surinamensis; Ammi majus; crude alkaloid compounds extract.