The Use of Alcoholic, Chloroform Extracts of Flowers and Leaves of Basilicum Ocimum Plant in the Control of the Southern Cowpea Beetle Callosobruchus maculatus

Abstract

Abstract The current investigation is an endivour to determine the efficacy of chloroform and alcoholic extracts of basil flowers and leaves in suppressing the southern cowpea beetle. The study demonstrated the influence of extract concentration, as the maximum average number of eggs deposited per female was 72,8 at a concentration of 0.25%. In terms of the extract type factor, alcoholic extract of basil leaves resulted in the greatest average egg production of 71,9 eggs per female. Due to the interaction, an alcoholic extract of basil leaves at a concentration of 0.25% resulted in the highest rate of egg production of 81.6 eggs per female and a chloroform extract of basil flowers at a dose of 1% resulted in the lowest rate of egg production of 28 eggs per female. The proportion of eggs that hatched from C. maculatus-treated adults varied on the extract’s kind and concentration. At a dosage of 0.25%, the greatest hatch rate of eggs was 77.6%. In terms of extract factor, alcoholic basil leaf extract resulted in the highest percentage of eggs hatching 71.5%, whereas chloroform basil flower extract resulted in the lowest percentage of eggs hatching 65.6%. The largest percentage of eggs that hatched as a result of the interaction was 81.6%, and it happened at a dose of 0.25% basil leaf alcoholic extract. The lowest percentage of eggs that hatched was 36.6% when an extract of chloroform from basil flowers was present at a concentration of 1%. The current study examined the impact of extract type and concentration on larval mortality from eggs of adults treated with C. maculatus, with 1% being the highest percentage. The extract type had the greatest percentage of larval death, with alcoholic basil leaf extract having 32.7% and chloroform basil leaf extract having 30.0%. The interaction caused the most larvae to die when the alcoholic extract of basil flowers was at 1% concentration and the fewest larvae to die when it was at 0.25% concentration.