Logo
International Journal of
Agriculture and Plant Science
Header

Search

ARCHIVES
2026 ISSUES
2025 ISSUES
2024 ISSUES
2023 ISSUES
2022 ISSUES
2021 ISSUES
2020 ISSUES
2019 ISSUES
VOL. 5, ISSUE 2 (2023)
Efficacy of Entomopathogenic Nematodes Against Pieris brassicae (L.) (Lepidoptera: Noctuidae)
Authors
Mohamed R G Abo Elela
Abstract
For the control of different insect pests, entomopathogenic nematodes (EPNs) have the ability to replace larvicidal activity. The pathogenicity of two EPN species, Steinernema monticolum and Heterorhabditis bacteriophora, was tested in laboratory trials against the cabbage butterfly, Pieris brassicae (L.). The two nematode species used in this study were H. bacteriophora and the Korean species S. monticolum, at concentrations of 0, 10, 20, 40, 80, and 160 IJs/cm2. Only 2 samples effectively displayed larvicidal activity according to the strains' pathogenicity. The treatments with H. bacteriophora and S. monticolum at 160 IJs/cm2 produced the greatest mortality percentage (87.50 and 85 %) at the 2nd instar larval, respectively. At the 4th instar, H. bacteriophora and S. monticolum treatments at 160 IJs/cm2 resulted in corresponding larval mortality rates of 97.50 and 87.50 %. Pupae had mortality rates of (90 %) for H. bacteriophora and S. monticolum, respectively, at 160 IJs/cm2; (77.50 and 72.50%) for both the evaluated EPNs, respectively, at 80 IJs/cm2. The percentage of P. brassicae larval mortality reduced by the tested EPN isolates was substantially higher than the untreated control. The percentage of larval mortality significantly rose with the lengthening of time periods, reaching its peak at 72 hours, according to the results. Even after 48 and 72 hours of exposure, the strains of S. monticolum and H. bacteriophora demonstrated powerful larvicidal action at low concentration. This research showed that P. brassicae was successfully controlled by the EPN strains S. monticolum and H. bacteriophora HR2.
Download
Pages:54-59
How to cite this article:
Mohamed R G Abo Elela "Efficacy of Entomopathogenic Nematodes Against <i>Pieris brassicae</i> (L.) (Lepidoptera: Noctuidae)". International Journal of Agriculture and Plant Science, Vol 5, Issue 2, 2023, Pages 54-59
Download Author Certificate

Please enter the email address corresponding to this article submission to download your certificate.