Insecticidal effects of flower, fruit growth stages and leaf extracts of Melia azedarach on Aphis fabae nymphs

Document Type : Original Article

Authors

1 Department of Plant Protection, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran

2 Department of Agricultural Engineering, Technical and Vocational University (TVU), Tehran, Iran

Abstract

Considering the low risk of botanical pesticides for humans and the environment, and their broad-spectrum pest control capabilities, it seems beneficial and necessary to consider these compounds in integrated pest management. Different plant parts produce different amounts of secondary metabolites that can have insecticidal properties. Therefore, by evaluating the effectiveness of substances extracted from different parts of  plants, it is possible to open a window to identify important effective substances. This study investigated the insecticidal activity of Melia azedarach L. extracts (flowers, fruit growth stages, and leaves) against Aphis fabae Scopoli using different solvents (polar protic, dipolar aprotic, and non-polar). The highest mortality percentage among methanolic extracts was found in the flower extract (77.74±5.75%), in n-hexane extracts it was in the ripe fruit extract (76.18±4.09%), and in acetonic extracts it was in the flower extract (66.48±5.91%). Results indicated that all three plant parts' methanolic extracts showed the most potent insecticidal effects.

Keywords

Files

Share

How to cite

Statistics