scholarly journals Plant Parasitic Nematodes: A Review on Their Behaviour, Host Interaction, Management Approaches and Their Occurrence in Two Sites in the Republic of Ireland

Plants ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2352
Author(s):  
Anusha Pulavarty ◽  
Aoife Egan ◽  
Anna Karpinska ◽  
Karina Horgan ◽  
Thomais Kakouli-Duarte
Keyword(s):  
Management Practices ◽  
Growth Promotion ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Republic Of Ireland ◽  
Host Interaction ◽  
Environmentally Safe ◽  
The Republic ◽  
Management Approaches ◽  
Plant Parasitic

Plant parasitic nematodes are a major problem for growers worldwide, causing severe crop losses. Several conventional strategies, such as chemical nematicides and biofumigation, have been employed in the past to manage their infection in plants and spread in soils. However, the search for the most sustainable and environmentally safe practices is still ongoing. This review summarises information on plant parasitic nematodes, their distribution, and their interaction with their host plants, along with various approaches to manage their infestations. It also focuses on the application of microbial and fermentation-based bionematicides that have not only been successful in controlling nematode infection but have also led to plant growth promotion and proven to be environmentally safe. Studies with new information on the relative abundance of plant parasitic nematodes in two agricultural sites in the Republic of Ireland are also reported. This review, with the information it provides, will help to generate an up-to-date knowledge base on plant parasitic nematodes and their management practices.

scholarly journals Fluensulfone: A New “Tool in the Tool Box” to Manage Plant-parasitic Nematodes in Vegetable Production

EDIS ◽  
2018 ◽  
Vol 2018 (1) ◽  
Author(s):  
Gilma X. Castillo ◽  
Monica Ozores-Hampton ◽  
Pablo A. Navia Gine
Keyword(s):  
Crop Production ◽  
Management Practices ◽  
Parasitic Nematodes ◽  
Vegetable Production ◽  
Agricultural Systems ◽  
Plant Parasitic Nematodes ◽  
Nematode Management ◽  
The Impact ◽  
Plant Parasitic

Plant-parasitic nematodes pose a problem in agricultural systems by feeding on crops, therefore affecting their yield. Fluensulfone is a chemical that can be applied using various methods to manage the impact of plant-parasitic nematodes on crop production. This 6-page document discusses the characteristics and use of fluensulfone as a tool for nematode management practices. Written by Gilma X. Castillo, Monica Ozores-Hampton, and Pablo A. Navia Gine and published by the UF/IFAS Department of Horticultural Sciences, January 2018. http://edis.ifas.ufl.edu/hs1313

Diversity and population densities of plant-parasitic nematodes in commercial and smallholder pineapple production in Kenya

Nematology ◽  
2021 ◽  
pp. 1-14
Author(s):  
Agnes W. Kiriga ◽  
Danny Coyne ◽  
Janet G. Atandi ◽  
Nikolai V. Beek ◽  
Solveig Haukeland
Keyword(s):  
Management Practices ◽  
Crop Yields ◽  
Production Systems ◽  
Ananas Comosus ◽  
Parasitic Nematodes ◽  
Yield Reduction ◽  
Plant Parasitic Nematodes ◽  
Population Densities ◽  
High Level ◽  
Plant Parasitic

Summary Plant-parasitic nematodes (PPN) cause significant yield reduction in commercial pineapple (Ananas comosus) worldwide. In Kenya, few nematode studies have been conducted, although the main commercial pineapple producer has sole dispensation to use Telone II (1,3-Dichloropropene) indicating the magnitude of the nematode problem. This study was conducted with the aim to investigate the population densities and diversity of nematodes in two commercial plantations with two contrasting management practices. We additionally assessed the influence of crop age and compared this with nearby smallholder pineapple production systems. Soil and root samples were collected from fields of different ages in each commercial plantation and from 29 smallholder fields. A total of 18 genera were associated with pineapple, with a relatively greater diversity found in smallholder than commercial farms. The most prevalent genus was Meloidogyne spp. (M. javanica) followed by Helicotylenchus spp., Tylenchus spp. and Aphelenchoides spp. PPN densities were higher in relatively older fields of 24 and 36 months than from fallow and 3-month-old fields. Regression analysis additionally demonstrated the rise of PPN densities with age of pineapple fields, especially Meloidogyne spp., while free-living nematode densities declined. This study provides an indication of the high level of PPN infection in pineapple in Kenya, which would constitute an important factor contributing to low yields. The study confirms an obvious need for pineapple producers to control PPN to improve crop yields.

Root colonization and growth promotion of cover crops by Pochonia chlamydosporia used in the management of plant-parasitic nematodes

Rhizosphere ◽  
2021 ◽  
pp. 100432
Author(s):  
Raul Rodrigues Coutinho ◽  
Paulo Victor Magalhães Pacheco ◽  
Thalita Suelen Avelar Monteiro ◽  
Huarlen Marcio Balbino ◽  
Bruno Coutinho Moreira ◽  
...  
Keyword(s):  
Cover Crops ◽  
Root Colonization ◽  
Growth Promotion ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Pochonia Chlamydosporia ◽  
Plant Parasitic

scholarly journals Prediction of Nematode Population Dynamics using Weather Variables in Leguminous Crops

2021 ◽  
Author(s):  
Kamal Batra ◽  
Parul Gandhi
Keyword(s):  
Mung Bean ◽  
Management Practices ◽  
Nematode Population ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Weather Variables ◽  
Sunshine Hours ◽  
Leguminous Crops ◽  
Host Tolerance ◽  
Plant Parasitic

Background: The soil nematodes can affect the crops in various ways. The plant-parasitic nematodes can lead to severe yield losses. The extent of crop yield loss depends on the susceptibility of the variety or host tolerance, population density of the nematode and various environmental variables. However, no tool is available for the prediction of nematode population buildup in soil therefore it has been difficult to issue advisories for timely management of these pathogens. Here we developed a method to accurately predict the nematode population buildup in soil for its timely management. Methods: Nematode population index of a plant-parasitic nematode Tylenchorynchus was taken from two crops i.e. mung bean and crotalaria. The model was developed considering various weather variables to predict the population of the Tylenchorynchus in the fields of mung bean and crotalaria. Weather parameters such as maximum and minimum temperature, relative humidity, wind speed and sunshine hours were considered for developing the model for Tylenchorynchus population prediction. Stepwise regression method was applied to predict the nematode population. Result: The regression analysis between estimated and observed values of Tylenchorynchus population gave the R2 value as 0.98 for mung bean and 0.87 for crotalaria. Well timed prediction can help the growers to apply the required management practices to make it beneficial economically. This method can be extended to predict the population buildup of other serious nematode pests of crops.

scholarly journals Factors Associated with Populations of Plant-Parasitic Nematodes in Bentgrass Putting Greens in Oklahoma

Plant Disease ◽  
2002 ◽  
Vol 86 (7) ◽  
pp. 764-768 ◽  
Author(s):  
N. R. Walker ◽  
C. L. Goad ◽  
H. Zhang ◽  
D. L. Martin
Keyword(s):  
Bulk Density ◽  
Management Practices ◽  
Factor Model ◽  
Negative Relationship ◽  
Soil Bulk Density ◽  
Parasitic Nematodes ◽  
Available Phosphorus ◽  
Plant Parasitic Nematodes ◽  
Putting Greens ◽  
Plant Parasitic

Numerous genera of plant-parasitic nematodes are frequently present at high populations in golf course putting greens. The objectives of this research were to identify and quantify plant-parasitic nematodes from Oklahoma bentgrass putting greens and to characterize specific soil physical and chemical features and management factors that may account for differences in or associated with the observed nematode populations. In the fall of 2000, nematodes were identified from 99 individual bentgrass putting greens sampled from 46 different locations in Oklahoma. In addition to green age and bentgrass cultivar; soil pH, nitrate-nitrogen (NO3-N), plant-available phosphorus and potassium, organic matter (OM), bulk density, and particle size distribution were determined for each green. Expenditures on management activities, including fertilizer, herbicide, fungicide, and insecticide, were determined for 20 of the sampled courses and compared with nematode populations. Nematodes from seven genera were found in Oklahoma greens, with Criconemella spp. being the most common. Paratrichodorus spp., Tylenchorhynchus spp., and Helicotylenchus spp. also were common. The logarithmic populations of all nematodes combined increased with greater green age (r = 0.37). A negative relationship was observed between soil bulk density and all nematodes combined (r = -0.29). Soil NO3-N, plant-available K, and OM increased with combined logarithmic populations of all plant parasitic nematodes (r = 0.23, 0.28, and 0.37, respectively). A four-factor model accounted for 75% of the total variation in the data and permitted groupings of all variables into four uncorrelated factors. Total logarithmic nematode populations increased with fungicide and herbicide expenditures (r = 0.31). This study suggests that populations of plant-parasitic nematodes may be influenced by the putting green abiotic soil environment and possibly indirectly by management practices on putting greens.

Management of Plant-Parasitic Nematodes in Florida Cotton Production

EDIS ◽  
2017 ◽  
Vol 2017 (2) ◽  
pp. 8
Author(s):  
Zane Grabau
Keyword(s):  
Parasitic Nematodes ◽  
Cotton Production ◽  
Plant Parasitic Nematodes ◽  
Fact Sheet ◽  
Plant Parasitic

This 8-page fact sheet written by Zane J. Grabau and published in January 2017 by the UF Department of Entomology and Nematology explains how to diagnose and manage nematode problems in cotton production.­http://edis.ifas.ufl.edu/ng015

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