Plant-Parasitic Nematodes and their Effects on Ornamental Plants: A Review

Howland, Amanda D.; Quintanilla, Marisol

doi:10.2478/jofnem-2023-0007

Cited by 8 publications

(2 citation statements)

References 42 publications

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“…Over 2500 plant species are cultivated and plant-parasitic nematodes characterized by high polyphagies represent a serious concern. Even though extensive research has been devoted to the investigation of the effect and management of plant-parasitic nematodes in crops, the effect of these pests on the ornamental plant industry remains a relatively understudied field [1]. There are many categories of plant-parasitic nematodes that affect ornamental plants, with the main genera being Meloidogyne, Aphelenchoides, Paratylenchus, Pratylenchus, Helicotylenchus, Radopholus, Xiphinema, Trichodorus, Paratrichodorus, Rotylenchulus, and Longidorus.…”

Section: Introductionmentioning

confidence: 99%

Impact of Pot Farming on Plant-Parasitic Nematode Control

Landi,

Carletti,

Binazzi

et al. 2024

Soil Systems

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In the Pistoia Nursery-Ornamental Rural District (Italy), a leader in Europe in ornamental nurseries covering over 5200 hectares with over 2500 different species of plant, plant-parasitic nematodes represent a serious concern. The potential efficacy of a pot cultivation system using commercial substrates to control plant-parasitic nematodes was assessed. On two different plant species, two different pot cultivation managements, potted plants, and potted plants previously cultivated in natural soil were compared to plants only cultivated in natural soil. The entire soil nematode structure with and without plants was evaluated. The relationship between soil properties and soil nematode community was investigated. All the studied substrates were free from plant-parasitic nematodes. Regarding free-living nematodes, Peat–Pumice showed nematode assemblage established by colonizer and extreme colonizer bacterial feeders, whereas Peat–Perlite included both bacterial and fungal feeders, and, finally, coconut fiber also included omnivores and predators. In farming, the substrates rich in organic matter such as coconut fiber could still play an important role in suppressing plant-parasitic nematodes because of the abundance of free-living nematodes. In fact, they are of crucial importance in both the mineralization of organic matter and the antagonistic control of plant-parasitic nematodes. Potting systems equally reduce virus-vector nematodes and improve the prey/predator ratio favoring natural control.

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Section: Introductionmentioning

confidence: 99%

Impact of Pot Farming on Plant-Parasitic Nematode Control

Landi,

Carletti,

Binazzi

et al. 2024

Soil Systems

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“…Occupying a completely different parasitic niche, ectoparasitic nematodes from the family Criconematidae, including Mesocriconema xenoplax , can be problematic in perennial cropping systems such as wine grapes (Pinkerton et al., 1999; Schreiner et al., 2012). Meloidogyne hapla and M. xenoplax are two of the most problematic plant‐parasitic nematode species for wine grapes in the Pacific Northwest (Idaho, Oregon, and Washington) of the United States (Howland et al., 2014; Pinkerton et al., 1999). Plant‐parasitic nematodes are often difficult to deal with in perennial cropping systems, where their density increases over time and parasitism eventually decreases crop yield and vineyard life span (East et al., 2021; Raski et al., 1973).…”

Section: Introductionmentioning

confidence: 99%

Vineyard soil texture and pH effects on Meloidogyne hapla and Mesocriconema xenoplax

East,

Zasada,

Lee

et al. 2023

Agrosystems Geosci & Env

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Northern root‐knot nematode (Meloidogyne hapla) and ring nematode (Mesocriconema xenoplax) are the most prevalent plant‐parasitic nematodes of wine grapes in the Pacific Northwest, but M. hapla is most important in eastern Washington and M. xenoplax in western Oregon. These regions differ edaphically where Washington soils are minimally weathered and alkaline while Oregon soils are highly weathered and acidic. To examine the effect of soil texture and pH on nematode reproduction, an alkaline, sandy loam soil (pH 7.9) from Washington and an acidic loam soil from Oregon (pH 5.4) were modified to the other pH extreme, and to a middle pH of 6.9. Tomatoes were planted into each soil/pH combination, and either 500 M. hapla second‐stage juveniles or M. xenoplax individuals were added to each pot. After 7 weeks, plants were harvested, three roots collected for analysis, remaining roots and leaves dried and weighed, and nematode population densities determined as eggs on roots (M. hapla) and nematodes in soil (M. xenoplax). Soil texture (sandy loam or loam) had no effect on either nematode, but M. hapla reproduction was greater in the lowest pH soil while M. xenoplax was unaffected by soil pH. Mesocriconema xenoplax parasitism reduced root length and root tip number, whereas M. hapla increased root mass in the highest pH Washington soil. Under these experimental conditions, it appears vineyard soil texture in the Pacific Northwest is not a determining factor in population growth of these nematodes, but M. hapla performed better at low pH.

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