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EVALUATION OF THE EFFICIENCY OF SOME AQUEOUS AND ALCOHOLIC PLANT EXTRACTS IN CONTROLLING THE SOUTHERN COWPEA BEETLE CALLOSOBRACHUS MACULATUS .F | ||
| Mesopotamia Journal of Agriculture | ||
| Article 9, Volume 54, Issue 1, March 2026, Pages 120-131 PDF (443.55 K) | ||
| Document Type: Research | ||
| DOI: 10.33899/mja.2026.160372.1594 | ||
| Authors | ||
| Abdul Aziz Alwan alwan Mustafa* 1; Mohammed Yousuf Sayed Ghani2 | ||
| 1Department of Field Crops, College of Agriculture, University of Telafer, Iraq | ||
| 2Plant Protection Department, College of Agriculture and Forestry, University of Mosul, Mosul, Iraq | ||
| Abstract | ||
| The results of the study showed that the alcoholic extract of Nerium oleander leaves was superior, recording the highest Mortality rate of 34.14%, which did not significantly differ from the average Mortality rate of Melia azedarach extract, which amounted to 33.05%. Meanwhile, the aqueous extract of Eucalyptus camaldulensis leaves achieved the lowest Mortality rate of 15.55%. The interaction effect between the extract and the concentration used also had a significant impact, as the alcoholic extract of Nerium oleander achieved the highest Mortality rate of 65.56% at a concentration of 3.5%. Also, regarding the interaction effect between the extracts studied and the treatment time, we found that the alcoholic extract of Nerium oleander leaves was more effective, achieving a Mortality rate of 43.33% after 72 hours of treatment. As for the interaction effect between the concentrations used and the time used on the Mortality rate, the concentration achieved 3.5% after 72 hours. The highest mortality rate was 66.66% for the treatment, while the lowest mortality rate was at a concentration of 1.5% after 24 hours of treatment. Therefore, the results confirmed that the alcoholic extract of Nerium oleander leaves is effective and has a significant impact on the mortality rate of the southern cowpea beetle, as it is considered an environmentally friendly natural pesticide. | ||
| Keywords | ||
| Southern cowpea beetle Nerium oleander; Melia azedarach; Eucalyptus camaldulensis Plant extracts | ||
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