Comparative Effects of Entomopathogenic Nematodes, Biopesticides, and Plant Extracts Against Agricultural Pest Meloidogyne incognita (Tylenchida: Heteroderidae)
Comparative Effects of Entomopathogenic Nematodes, Biopesticides, and Plant Extracts Against Agricultural Pest Meloidogyne incognita (Tylenchida: Heteroderidae)
Bashir Ahmed and Salma Javed*
ABSTRACT
This study investigates the availability and efficacy of biopesticides, specifically neem oil, and entomopathogenic nematodes (EPNs) in urban agriculture within Karachi, Sindh, Pakistan. A survey conducted across twenty local markets revealed that neem oil was the only biopesticide available, highlighting a significant gap in the accessibility of eco-friendly pest management options amidst prevalent chemical pesticide use. Soil samples collected from various plant types on the University of Karachi campus successfully isolated Steinernema pakistanense nematodes, indicating their potential as effective biological control agents. The inhibitory effects of neem oil, Syzygium cumini leaf extract, and EPNs on egg hatching were evaluated, revealing that neem oil exhibited the highest efficacy with 98% inhibition at 72 hours; however, no statistically significant differences were noted among treatments over time. Additionally, a nursery trial assessed the impact of these treatments on plant growth parameters. EPNs demonstrated superior performance in promoting plant height and root growth compared to other treatments, indicating their dual role in pest control and plant health. These findings underscore the potential of integrating biopesticides into pest management strategies to enhance sustainability in urban agriculture. Future research should focus on optimizing formulations and exploring synergistic combinations of biopesticides to maximize pest control efficacy and improve crop yield.
To share on other social networks, click on any share button. What are these?
