Have a personal or library account? Click to login

Aqueous Extracts of Organic Mulch Materials Have Nematicide and Repellent Effect on Meloidogyne incognita Infective Juveniles: A Laboratory Study

Journal of Nematology
Volume 55 (2023): Issue 1 (February 2023)
By:
Open Access
|Sep 2023

Figures & Tables

Figure 1:

Representation of the sectors identified during the reading of the area choice test.
Representation of the sectors identified during the reading of the area choice test.

Figure 2:

Mortality rates (mean ± CI 95%) of Meloidogyne incognita juveniles of different concen-trations (0.1, 0.5, 1 and 5%) of various leaf litter, straw and compost extracts. (CI 95%: 95% of confidence interval) (One-way ANOVA, Tukey's pairwise comparisons (in the case of compost), Mann–Whitney U test; different letters in the same row indicate significant difference at p ≤ 0.05 level).
Mortality rates (mean ± CI 95%) of Meloidogyne incognita juveniles of different concen-trations (0.1, 0.5, 1 and 5%) of various leaf litter, straw and compost extracts. (CI 95%: 95% of confidence interval) (One-way ANOVA, Tukey's pairwise comparisons (in the case of compost), Mann–Whitney U test; different letters in the same row indicate significant difference at p ≤ 0.05 level).

Figure 3:

Area choice of Meloidogyne incognita juveniles with various leaf litter, straw and compost extracts (treated) and MQ-water (control). (Welch-test, p ≤ 0.05, p-value means that the number of M. incognita juveniles counted on the treated side is significantly different from that on the control side).
Area choice of Meloidogyne incognita juveniles with various leaf litter, straw and compost extracts (treated) and MQ-water (control). (Welch-test, p ≤ 0.05, p-value means that the number of M. incognita juveniles counted on the treated side is significantly different from that on the control side).

Tannic acid content of different concentrations of various leaf litter, straw, and compost extracts_

Tannic acid content (%)
Concentrations (%)00.10.515
Extracts
Maple leaf littern.d.0.005210.026050.05210.2605
Oak leaf littern.d.0.002410.012050.02410.1205
Sycamore leaf littern.d.0.002090.010450.02090.1045
Walnut leaf littern.d.0.00080.0040.0080.04
Strawn.d.0.000020.00010.00020.001
Compostn.d.n.d.n.d.n.d.n.d.

Values (mean ± CI 95%) of pH of different concentrations of various leaf litter, straw, and compost extracts_ (CI 95%: 95% of confidence interval)_

pH value
Concentrations (%)00.10.515
Extracts
Maple leaf litter7.02 ± 0.045.33 ± 0.014.81 ± 0.024.78 ± 0.034.43 ± 0.03
Oak leaf litter7.02 ± 0.045.95 ± 0.015.42 ± 0.025.23 ± 0.034.99 ± 0.03
Sycamore leaf litter7.02 ± 0.046.42 ± 0.016.09 ± 0.035.36 ± 0.035.12 ± 0.02
Walnut leaf litter7.02 ± 0.046.30 ± 0.016.63 ± 0.036.68 ± 0.036.21 ± 0.04
Straw7.02 ± 0.046.37 ± 0.026.41 ± 0.046.44 ± 0.016.46 ± 0.03
Compost7.02 ± 0.046.90 ± 0.017.29 ± 0.037.57 ± 0.037.79 ± 0.06

Correlation between the concentration, the tannic acid content, the pH of mulch-derived extracts and the percentage mortality of the juveniles of Meloidogyne incognita_

ExtractsConcentration/MortalityTannic acid/MortalitypH/Mortality
Maple leaf litter0.7320.7320.785
Oak leaf litter0.7100.7100.854
Sycamore leaf litter0.9190.9190.766
Walnut leaf litter0.7180.7180.495
Straw0.9820.9820.267
Compost0.5220.1080.495
DOI: https://doi.org/10.2478/jofnem-2023-0037 | Journal eISSN: 2640-396X | Journal ISSN: 0022-300X
Journal RSS Feed
Language: English
Submitted on: Jan 18, 2023
Published on: Sep 1, 2023
Published by: Society of Nematologists, Inc.
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year
Keywords:
area choice,
behavior,
biological control,
compost,
leaf litter mulch,
mortality,
pH,
tannic acid,
wheat straw
Related subjects:
Life sciences,
Life sciences, other

© 2023 Renáta Petrikovszki, Ferenc Tóth, Péter I Nagy, published by Society of Nematologists, Inc.
This work is licensed under the Creative Commons Attribution 4.0 License.

Previous articleVolume 55 (2023): Issue 1 (February 2023)Next article