Nematode Management in Organic Agriculture

Krueger, Romy; McSorley, Robert

doi:10.32473/edis-ng047-2008

Cited by 5 publications

(2 citation statements)

References 8 publications

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“…Strategies used to manage root-knot nematodes in tropical regions include nematicides, crop rotation, soil solarization, flooding, biological control, and soil amendments such as the application of manure, plant material, compost, and wood ash (Manneh, 2016). Alternative methods, such as organic amendments, have also shown some success (Krueger and McSorley, 2008). The link between soil fertility and plant health is strong, influencing a plant's ability to resist pests and diseases.…”

Section: Introductionmentioning

confidence: 99%

Eco-Friendly Management of Root Knot Nematode (Meloidogyne spp.) in Okra (Abelmoschus Esculentus) Using Different Soil Amendments

Poudel,

Budhathoki,

Mehta

et al. 2023

AgroEnviron. Sustain.

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Field experiment was conducted from March to July 2022 to identify the eco-friendly management of root-knot nematodes (Meloidogyne spp.) in okra (Abelmoschus esculentus) by using different soil amendments. The experiment was designed as a randomized complete block design with three replications and seven treatments viz., mustard oil cake at 1.41 kg/2m2 plot, poultry manure at 5.6 kg/2m2 plot, goat manure at 3.25 kg/2m2 plot, vermicompost at 4.30 kg/2m2 plot, nitrogen-phosphorus-potassium (NPK) at 125:110:110 g/2m2, Cartap hydrochloride 4% granule (GR) at 10 g/2m2 plot and control. Disease parameters such as root gall index and number of galls per plant, fresh shoot weight, and fresh root weight were recorded at 72, 105, and 120 days after sowing. Fruit yield was recorded after the final pod harvest. Cartap hydrochloride 4G, poultry manure, and mustard oil cake significantly reduced the root gall index as compared to the control. However, goat manure, vermicompost nitrogen, phosphorus, and potassium (NPK) did not give satisfactory results in reducing root gall index. The maximum yield of okra was recorded in the NPK treated plots although the root gall index was not much reduced. The research results indicated that the most effective treatment for reducing root-knot nematode disease and improving vegetative growth and yield of okra was poultry manure. Therefore, poultry manure along with mustard oil cake could be used as an alternative to highly hazardous and persistent chemical nematicides for the management of root-knot nematodes in okra.

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Section: Introductionmentioning

confidence: 99%

Eco-Friendly Management of Root Knot Nematode (Meloidogyne spp.) in Okra (Abelmoschus Esculentus) Using Different Soil Amendments

Poudel,

Budhathoki,

Mehta

et al. 2023

AgroEnviron. Sustain.

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“…Nematodes are usually microscopic in size and commonly described as filliform or thread like multicellular invertebrates (Krueger and McSorley, 2008). At least one nematode species is reported to parasitize every cultivated plant species (Luc et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Study on Some Species of Trichoderma for the Management of Root Knot Nematode (Meloidogyne spp.) in Tomato

Baidya

Manandhar

2023

J. Plant Prot. Soc.

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Pot experiment was conducted to find out the competence of some commercial product of Trichoderma spp. on the management of root knot nematode in tomato crop. The experiment was conducted in RCBD having seven treatments of six different Trichoderma spp. including one control in three replications. Each treatment had five pots. Twenty five days old seedling of Shrijana hybrid tomato was transplanted and inoculated with 1500 eggs of Meloidogyne spp. in soil after five days of transplanting of tomato seedlings. The spore suspensions of different Trichoderma spp. adjusted to 1 × 106 spores/ml and also inoculated per pot with 30 ml after one week of nematode inoculation. The same concentration and amount of Trichoderma spores solution was again inoculated after one month from the date of first application. Sixty five days after transplanting, all tomato plants were uprooted and the number of galls in root, galling index and fresh root weight were determined based on a 0-10 scale. The result showed that the treatments varied significantly in root knot index and number of galls per root system and fresh root weight per plant. The lowest gall index was observed in T. harzianum - Nemastin (1.6), followed by T. harzianum (T22) - Rootshield Plus (2.37) and T. viride (Ashtha TV) (3.43). Similarly, lowest numbers of galls (9.13) was observed in T. harzianum - Nemastin than all other treatments. There was no significant difference in fresh root weight per plant of tomato among the treatments except T. harzianum and T. harzianum (T22). Significantly highest suppressive effect on the nematode population was achieved by T. harzianum- Nemastin (Rf 0.45), followed by T. harzianum, (T22) (Rf 0.61), and T. viride, (Ashtha TV) (Rf 1.43). Different isolates of T. harzianum suppressed root knot disease of tomato as compare the isolates of T. viride. Hence, T. harzianum - Nemastin can be applied as a biological control agent to reduce the nematode population.

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