Aphicidal effect and repellent properties of Vicia faba L. (Fabales: Fabaceae) leaf extracts against Aphis fabae Scopoli (Homopetra: Aphididae)

fouad meradsi

Abstract


The effect of methanolic and aqueous leaf extracts of the aphid resistant cultivar CV-12 of Vicia faba on the behavior and mortality rate of Aphis fabae were compared. The main objective of the study was to assess the effects of extracts of broad bean leaves an available insecticide against A. fabae. The statistical analysis showed that the aqueous leaf extracts of the cultivar CV-12 had a repulsive effect against A. fabae (1.3 adults / leaf in mean) compared to methanolic leaf extracts of the same cultivar (3.7 adults / leaf in mean). The results revealed that the methanolic extracts had a toxic effect induced a high mortality rate in A. fabae that reach up to (65.71%) compared to the aqueous leaf extracts (mortality rate = 1.43%). The present study suggests that extracts from leaves of resistant cultivar CV-12 have insecticidal and repellent properties against A. fabae and could be used as an alternative of chemical pesticides in Integrated Pest Management programs to insect pests.

Keywords


Aphis fabae; biopesticide; flavonoids; leaf extracts; phenols; Vicia faba

Full Text:

PDF

Refbacks

  • There are currently no refbacks.