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

scholarly journals Marine Organisms for the Sustainable Management of Plant Parasitic Nematodes

Plants ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 369
Author(s):  
Pasqua Veronico ◽  
Maria Teresa Melillo
Keyword(s):  
Crop Production ◽  
Control Strategies ◽  
Marine Organisms ◽  
New Drugs ◽  
Effective Control ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Wide Range ◽  
Plant Growth Stimulants ◽  
Plant Parasitic

Plant parasitic nematodes are annually responsible for the loss of 10%–25% of worldwide crop production, most of which is attributable to root-knot nematodes (RKNs) that infest a wide range of agricultural crops throughout the world. Current nematode control tools are not enough to ensure the effective management of these parasites, mainly due to the severe restrictions imposed on the use of chemical pesticides. Therefore, it is important to discover new potential nematicidal sources that are suitable for the development of additional safe and effective control strategies. In the last few decades, there has been an explosion of information about the use of seaweeds as plant growth stimulants and potential nematicides. Novel bioactive compounds have been isolated from marine cyanobacteria and sponges in an effort to find their application outside marine ecosystems and in the discovery of new drugs. Their potential as antihelmintics could also be exploited to find applicability against plant parasitic nematodes. The present review focuses on the activity of marine organisms on RKNs and their potential application as safe nematicidal agents.

The role of plant-parasitic nematodes in reducing yield of sugarcane in fine-textured soils in Queensland, Australia

2007 ◽  
Vol 47 (5) ◽  
pp. 620 ◽  
Author(s):  
B. L. Blair ◽  
G. R. Stirling
Keyword(s):  
Growth And Yield ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Root Knot Nematode ◽  
Population Densities ◽  
Lesion Nematode ◽  
Yield Responses ◽  
The Impact ◽  
Stalk Length ◽  
Plant Parasitic

Damage to sugarcane caused by root-knot nematode (Meloidogyne spp.) is well documented in infertile coarse-textured soils, but crop losses have never been assessed in the fine-textured soils on which more than 95% of Australia’s sugarcane is grown. The impact of nematodes in these more fertile soils was assessed by repeatedly applying nematicides (aldicarb and fenamiphos) to plant and ratoon crops in 16 fields, and measuring their effects on nematode populations, sugarcane growth and yield. In untreated plant crops, mid-season population densities of lesion nematode (Pratylenchus zeae), root-knot nematode (M. javanica), stunt nematode (Tylenchorhynchus annulatus), spiral nematode (Helicotylenchus dihystera) and stubby-root nematode (Paratrichodorus minor) averaged 1065, 214, 535, 217 and 103 nematodes/200 mL soil, respectively. Lower mean nematode population densities were recorded in the first ratoon, particularly for root-knot nematode. Nematicides reduced populations of lesion nematode by 66–99% in both plant and ratoon crops, but control of root-knot nematode was inconsistent, particularly in ratoons. Nematicide treatment had a greater impact on shoot and stalk length than on shoot and stalk number. The entire community of pest nematodes appeared to be contributing to lost productivity, but stalk length and final yield responses correlated most consistently with the number of lesion nematodes controlled. Fine roots in nematicide-treated plots were healthier and more numerous than in untreated plots, and this was indicative of the reduced impact of lesion nematode. Yield responses averaged 15.3% in plant crops and 11.6% in ratoons, indicating that nematodes are subtle but significant pests of sugarcane in fine-textured soils. On the basis of these results, plant-parasitic nematodes are conservatively estimated to cost the Australian sugar industry about AU$82 million/annum.

scholarly journals Marigolds (Tagetes spp.) for Nematode Management

EDIS ◽  
2007 ◽  
Vol 2007 (19) ◽  
Author(s):  
R. Krueger ◽  
K. E. Dover ◽  
Robert McSorley ◽  
K. H. Wang
Keyword(s):  
Mode Of Action ◽  
Cover Crop ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Root Knot Nematodes ◽  
Fact Sheet ◽  
Nematode Management ◽  
Plant Parasitic

ENY-056, an 8-page fact sheet by R. Krueger, K. E. Dover, R. McSorley, and K. -H. Wang, introduces homeowners to the problem of root-knot nematodes, the use of marigolds as an allelopathic cover crop for nematode suppression. It describes the mode of action, planting tips, considerations, and frequently asked questions. Includes references and tables showing susceptibility of marigold varieties to root-knot and plant-parasitic nematodes in Florida. Published by the UF Department of Entomology and Nematology, August 2007. ENY-056/NG045: Marigolds (Tagetes spp.) for Nematode Management (ufl.edu)

scholarly journals Differential Response of Meloidogyne, Pratylenchus, Globodera, and Xiphinema Species to the Nematicide Fluazaindolizine

2020 ◽  
Vol 110 (12) ◽  
pp. 2003-2009
Author(s):  
Catherine L. Wram ◽  
Inga Zasada
Keyword(s):  
Untreated Control ◽  
Exposure Dose ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Response Curves ◽  
Greenhouse Study ◽  
Meloidogyne Spp ◽  
The Impact ◽  
Plant Parasitic

This research focused on the effects of fluazaindolizine on a diversity of plant-parasitic nematodes. In microwell assays, 24-h dose-response curves were generated for several species and populations of Meloidogyne, Pratylenchus neglectus, P. penetrans, Globodera ellingtonae, and Xiphinema americanum. In a greenhouse study, the impact of fluazaindolizine on fecundity of M. incognita, M. hapla, and M. chitwoodi was tested by exposing nematodes for 24 h in solution and inoculating on tomato. The average 24-h ED50s (dose that resulted in the immobility of 50% of exposed nematodes) for M. hapla, M. chitwoodi, and M. incognita were 325.7, 223.4, and 100.7 ppm, respectively. M. hapla had the most variation among populations, with 24-h ED50s ranging from 72 to 788 ppm. G. ellingtonae had the lowest 24-h ED50 at 30 ppm. Pratylenchus spp. were unaffected by fluazaindolizine. X. americanum was the only species where effects of fluazaindolizine were reversible, but had a 24-h ED50 that fell in the range of the Meloidogyne spp. In the greenhouse study, M. chitwoodi was the least sensitive with reproduction reaching 62% of the untreated control after a pre-exposure to 47 ppm, whereas M. incognita and M. hapla at the same exposure dose had reproduction rates of 27 and 36% of the untreated control, respectively. Despite varying in in vitro responses to fluazaindolizine, reproduction of all Meloidogyne spp. was suppressed after only 24 h of exposure. This study expanded our understanding of how G. ellingtonae, P. thornei, P. penetrans, and X. americanum respond to fluazaindolizine.

scholarly journals Plant Parasitic Nematodes and their management in crop production: a review

2021 ◽  
Vol 4 (2) ◽  
pp. 327-338
Author(s):  
Honey Raj Mandal ◽  
Shambhu Katel ◽  
Sudeep Subedi ◽  
Jiban Shrestha
Keyword(s):  
Crop Production ◽  
Bilateral Symmetry ◽  
Cultural Control ◽  
Crop Damage ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Cyst Nematodes ◽  
The World ◽  
The Many ◽  
Plant Parasitic

Plant Parasitic Nematodes are small worm like transparent, bilateral symmetry, pseudocoelomate, multicellular, free living or parasitic microorganism which are predatory, aquatic, terrestrial, entopathogenic, ectoparasite, endoparasite, semi-endoparasite or sedentary. They cause substantial problems to major crops throughout the world, including vegetables, fruits, and grain crops. The root knot and cyst nematodes are economically important pests in numerous crops. Crop damage from nematodes is not readily apparent in most cases, and it often remains hidden by the many other factors limiting plant growth. In the past, the control of the nematodes has been based on the synthetic nematicides, the number of which has been drastically restricted in the EU because of their environmental side effects and subsequent restriction in European Union (EU) rules and regulations. Many other methods like cultural control, biological control, use of biotechnological tools and methods, use of resistant cultivars are tested and proven successful in controlling different species of nematodes all over the world. Alternatively, combinations of the different methods are proven to be highly effective both economically and environmentally.

scholarly journals Nematode Management in Organic Agriculture

EDIS ◽  
2008 ◽  
Vol 2008 (2) ◽  
Author(s):  
Romy Krueger ◽  
Robert McSorley
Keyword(s):  
Organic Agriculture ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Nematode Management ◽  
Plant Parasitic

ENY-058, a 9-page illustrated factsheet by Romy Krueger and Robert McSorley, provides information on plant parasitic nematodes causing damage in organic agriculture and introduces methods for their management. Includes references. Published by UF Department of Entomology and Nematology, January 2008. 2011 reprint of January 2008 content. ENY-058/NG047: Nematode Management in Organic Agriculture (ufl.edu)

Impact of plant parasitic nematodes on maize in mid-western USA: an unrecognized or ignored threat to production.

2021 ◽  
pp. 34-40
Author(s):  
Abasola C. M. Simon ◽  
Horacio D. Lopez-Nicora ◽  
Terry L. Niblack
Keyword(s):  
Host Range ◽  
Economic Importance ◽  
Future Research ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Western Usa ◽  
Nematode Management ◽  
The Future ◽  
Damage Symptoms ◽  
Plant Parasitic

Abstract This chapter focuses on the economic importance, host range, damage symptoms and interactions with other nematodes and pathogens of plant parasitic nematodes on maize in the mid-western USA. The efficacy of some recommended integrated nematode management (INM) strategies are discussed and future research requirements and problems of the future are pointed out.

The impact of management strategies on the development and status of potato cyst nematode populations in Switzerland: An overview from 1958 to present

Plant Disease ◽  
2021 ◽  
Author(s):  
Andrea Caroline Ruthes ◽  
Paul Dahlin
Keyword(s):  
Integrated Management ◽  
Abiotic Factors ◽  
Management Strategies ◽  
Monitoring Program ◽  
Cyst Nematode ◽  
Globodera Pallida ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
The Impact ◽  
Plant Parasitic

Globodera rostochiensis and Globodera pallida are some of the most successful and highly specialized plant-parasitic nematodes, and appear among the most regulated quarantine pests globally. In Switzerland, they have been monitored by annual surveys since their first detection in Swiss soil, in 1958. The dataset created was reviewed to give an overview of the development and actual status of PCN in Switzerland. Positive fields represent 0.2% of all the samples analyzed, and currently their distribution is limited to central-west and western Switzerland, suggesting that new introduction of PCN and the spread of the initial introduced PCN populations did not occur. In this way, the integrated management used in Switzerland appears to be effective. However, the increasing availability of potato varieties with resistance to G. rostochiensis and the limited availability of varieties with resistance to G. pallida, together with other biotic and abiotic factors promoted changes in the dominance of either species. Consequently, an extended monitoring program would be of interest to Swiss farmers, to avoid favoring virulent traits that could be present within Swiss Globodera populations.

Humic acid – a potential bioresource for nematode control

Nematology ◽  
2021 ◽  
pp. 1-10
Author(s):  
Seenivasan Nagachandrabose ◽  
Richard Baidoo
Keyword(s):  
Humic Acid ◽  
Crop Production ◽  
Trichoderma Viride ◽  
Foliar Spray ◽  
Crop Productivity ◽  
Systemic Resistance ◽  
Parasitic Nematodes ◽  
Nematode Control ◽  
Plant Parasitic Nematodes ◽  
Plant Parasitic

Summary There is a growing interest in the use of natural products for crop production and protection. Humic acid is a well-known bioresource that intensifies soil functions and improves crop productivity. This review article provides a synopsis of the humic acid-plant-nematode association and the prospects for using humic acid as an alternative to chemical control of nematodes. Humic acid is known to have toxic and antagonistic effects against many plant-parasitic nematodes, including Meloidogyne spp., Rotylenchulus reniformis, Radopholus similis and Helicotylenchus multicinctus. The required dose for getting significant nematode control ranges from 0.04 to 2.0% concentration. Delivery methods like soil application or drenching, seedling root dip treatment and foliar spray on leaves are effective for nematode control. Humic acid controls plant-parasitic nematodes through various mechanisms including killing juveniles, inhibiting hatching, reducing nematode infectivity and reproduction, and inducing systemic resistance. Humic acid is compatible with bio-inoculants such as Azospirillum spp., phosphobacterium, Bacillus megaterium, Pseudomonas fluorescens, Trichoderma viride, Glomus spp., Pochonia chlamydosporia, Purpureocillium lilacinum and T. asperellum. These attributes of humic acid show a promising potential for use in nematode control. However, further work on bio-efficacy against a broad spectrum of plant-parasitic nematodes is needed.

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