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  • Journal Of Nematology


Research Article | 03-September-2018

Nematode Genome Announcement: A Draft Genome for Rice Root-Knot Nematode, Meloidogyne graminicola

The rice root-knot nematode Meloidogyne graminicola has emerged as a devastating pest of rice in South-East Asian countries. Here we present a draft genome sequence for M. graminicola, assembled using data from short and long insert libraries sequenced on Illumina GAIIx sequencing platform.

Vishal Singh Somvanshi, Madhura Tathode, Rohit Nandan Shukla, Uma Rao

Journal of Nematology, Volume 50 , ISSUE 2, 111–116

research-article | 30-November-2020

Evaluation of root-knot nematode resistance assays for sugarcane accession lines in Australia

Plant-parasitic nematodes are major constraints to sugarcane production worldwide (Ramouthar and Bhuiyan, 2018). In Australia, plant-parasitic nematodes cause 5 to 20% yield loss per year, costing over $80 million in productivity (Blair and Stirling, 2007). The most important nematodes of sugarcane in Australia are root-lesion nematode (Pratylenchus zeae) and root-knot nematode (Meloidogyne javanica). Meloidogyne javanica is primarily abundant in sandy soil and can cause significant yield loss

S. A. Bhuiyan, K. Garlick

Journal of Nematology, Volume 53 , 1–11

research-article | 30-November-2020

First report of northern root-knot nematode, Meloidogyne hapla (Chitwood, 1949) on strawberry in Turkey

dense population of second-stage juvenile. Several plant-parasitic nematode species were reported to cause damages in strawberries, and the northern root-knot nematode (RKN) Meloidogyne hapla (Chitwood, 1949) and the northern root-lesion nematode (RLN) Pratylenchus penetrans (Cobb) (Filipjev and Shuurmans Stekhoven) are the most harmful nematodes worldwide (Bélair and Khanizadeh, 1994; Brown et al., 1993; Nyoike et al., 2012; Samaliev and Mohamedova, 2011). Foliar nematodes, such as Aphelenchoides

Adem Özarslandan, Dilek Dinçer, Şefika Yavuz, Ayşenur Aslan

Journal of Nematology, Volume 53 , 1–4

research-article | 30-November-2019

Reproduction of Meloidogyne enterolobii on selected root-knot nematode resistant sweetpotato (Ipomoea batatas) cultivars

Janete A. Brito, Johan Desaeger, D.W. Dickson

Journal of Nematology, Volume 52 , 1–6

research-article | 17-March-2020

Characterization of root-knot nematodes infecting mulberry in Southern China

Root-knot nematode disease has dramatically impacted Morus alba L. production in Japan, India, and Brazil (Hida and Zhu, 1985; Sujathamma et al., 2014; Paestakahashi et al., 2015). According to Wang and Chen (1989a, 1989b), root-knot nematodes cause mulberry leaf loss of 20 to 45%, with severe cases reaching over 75% in some fields (Wang and Chen, 1989a, 1989b). Leaf quality can also be negatively impacted by this pathogen. Root-knot nematodes on mulberry in Japan have previously been

Pan Zhang, Hudie Shao, Chunping You, Yan Feng, Zhenwen Xie

Journal of Nematology, Volume 52 , 1–8

Article | 21-July-2017

Resistance to Southern Root-knot Nematode (Meloidogyne incognita) in Wild Watermelon (Citrullus lanatus var. citroides)

Southern root-knot nematode (RKN, Meloidogyne incognita) is a serious pest of cultivated watermelon (Citrullus lanatus var. lanatus) in southern regions of the United States and no resistance is known to exist in commercial watermelon cultivars. Wild watermelon relatives (Citrullus lanatus var. citroides) have been shown in greenhouse studies to possess varying degrees of resistance to RKN species. Experiments were conducted over 2 yr to assess resistance of southern RKN in C. lanatus var


Journal of Nematology, Volume 48 , ISSUE 1, 14–19

Article | 24-July-2017

Methyl Bromide Alternatives for Control of Root-knot Nematode (Meloidogyne spp.) in Tomato Production in Florida

terms of root-knot nematode management, were the combinations 1,3-D-chloropicrin, chloropicrin-proprietary solvent ,and 1,3-D-metam sodium. Sprayed or injected metam sodium generally provided only short-term nematode management and by harvest nematode infection was not different from the nontreated control. Drip-applied metam sodium gave good nematode management under high nematode pressure, but needs further verification to establish (i) the importance of soil moisture and temperature on treatment


Journal of Nematology, Volume 49 , ISSUE 2, 140–149

research-article | 06-March-2020

First report of Meloidogyne enterolobii infecting Japanese blue berry tree (Elaeocarpus decipiens) in Florida, USA

M. R. Moore, J. A. Brito, S. Qiu, C. G. Roberts, L. A. Combee

Journal of Nematology, Volume 52 , 1–3

research-article | 17-March-2020

Genome sequence of the root-knot nematode Meloidogyne luci

Nik Susič, Georgios D. Koutsovoulos, Cristian Riccio, Etienne G. J. Danchin, Mark L. Blaxter, David H. Lunt, Polona Strajnar, Saša Širca, Gregor Urek, Barbara Gerič Stare

Journal of Nematology, Volume 52 , 1–5

research-article | 29-March-2019

First Report of the Peach Root-Knot Nematode, Meloidogyne floridensis Infecting Almond on Root-Knot Nematode Resistant ‘Hansen 536’ and ‘Bright's Hybrid 5’ Rootstocks in California, USA

The peach root-knot nematode, Meloidogyne floridensis, is recognized as an emerging pathogen of commercial peach production because of its capability to overcome root-knot nematode resistance in rootstocks. This nematode was first described in Florida where it was found in 16 counties (Brito et al., 2015; Brito pers.comm). Although it was reported to infect peaches in 1966, the peach root-knot nematode was only described as a new species in 2004 (Handoo et al., 2004). In Florida, M. floridensis

Andreas Westphal, Zin T. Z. Maung, David A. Doll, Mohammad A. Yaghmour, John J. Chitambar, Sergei A. Subbotin

Journal of Nematology, Volume 51 , 1–3

research-article | 30-November-2020

First report of rice root-knot nematode, Meloidogyne graminicola, infecting Juncus microcephalus in Brazil

Cristiano Bellé, Paulo Sergio dos Santos, Tiago Edu Kaspary

Journal of Nematology, Volume 53 , 1–4

research-article | 30-November-2020

First report of root-knot nematode, Meloidogyne incognita, infecting hops, Humulus lupulus, in São Paulo, Brazil

. incognita was reported. So far there are no known hops cultivars with any resistance to gall nematodes. It is a great opportunity for breeding research, the search for new cultivars that are resistant to the most common nematodes in the tropical climate, as well as, discover from the existing cultivars what is the resistance level for the reported nematodes. Based on all results, this is the first report of Humulus lupulus as a host of the root-knot nematode, M. incognita, in the state of São Paulo and

R. F. Gonsaga, A. Souza Pollo, D. D. Nascimento, R. J. Ferreira, L. T. Braz, P. L. M. Soares

Journal of Nematology, Volume 53 , 1–4

research-article | 30-November-2019

Biological control of Meloidogyne spp. in glasshouse-grown chrysanthemum

J. R. De Long, M. A. Streminska, A. Persijn, H. M. I. Huisman, C. van der Salm

Journal of Nematology, Volume 52 , 1–12

research-article | 30-November-2020

First report of Meloidogyne incognita infecting Cannabis sativa in Alabama

Industrial hemp (Cannabis sativa L.) is a new crop for Alabama with the recent legalization and hemp acreage is increasing each year. In the first season of legal production, hemp plants (cultivar ‘Boax’ and ‘Otto2’) in a commercial field located in Geneva County, AL exhibited stunted growth, poor root development, and numerous galls typical of root-knot nematode (Meloidogyne spp.) infection. After harvest in September 2019, 75 L of soil were collected from the field in the area with

Bisho R. Lawaju, William Groover, Jessica Kelton, Kassie Conner, Edward Sikora, Kathy S. Lawrence

Journal of Nematology, Volume 53 , 1–3

Research Article | 03-December-2018

Broad-based root-knot nematode resistance identified in cowpea gene-pool two

Arsenio D. Ndeve, William C. Matthews, Jansen R. P. Santos, Bao Lam Huynh, Philip A. Roberts

Journal of Nematology, Volume 50 , ISSUE 4, 545–558

research-article | 30-November-2020

Pathogen identification of Gentiana macrophylla root-knot nematode disease in Yulong, China

Wentao Wu, Shanshan Xu, Zewen Gao, Shusheng Zhu, Youyong Zhu, Yang Wang, Xiahong He

Journal of Nematology, Volume 53 , 1–3

research-article | 30-November-2019

First report of Meloidogyne naasi parasitizing turfgrass in Portugal

The barley root-knot nematode, Meloidogyne naasi Franklin, 1965 was originally described from field crops (cereals, grasses, and sugarbeet, Beta vulgaris L.) in England and Wales (Franklin, 1965). According to the EPPO Global Database, this nematode is present in temperate regions in all continents: Africa (Libya); Asia (Iran); Europe (Belgium, Czech Republic, Denmark, France, Germany, Hungary, Ireland, Italy, Malta, the Netherlands, Norway, Poland, Serbia and UK); North America (Canada, USA

M. Clara Vieira dos Santos, M. Teresa M. Almeida, Sofia R. Costa

Journal of Nematology, Volume 52 , 1–4

research-article | 06-November-2020

Morphological and molecular analyses of a Meloidogyne mali population with high intragenomic rRNA polymorphism

Meloidogyne mali (Itoh et al., 1969) is a root-knot nematode (RKN) causing significant damage by inducing root galls on its host plant and consequently reduced host growth by interfering with the uptake of water and nutrients. M. mali has a wide host range, typically on trees, but can also parasitize on shrubs and herbaceous plants (Ahmed et al., 2013). M. mali was first described in Japan in 1969, with the type host apple (Malus domestica Borkh.) (Itoh et al., 1969). In 2000, a root-knot

Jianfeng Gu, Yiwu Fang, Lele Liu

Journal of Nematology, Volume 52 , 1–11

research-article | 17-March-2020

The effects of Meloidogyne incognita and Heterodera glycines on the yield and quality of edamame (Glycine max l.) in Arkansas

(Wrather and Koenning, 2003, 2006). Two nematodes of major concern for soybean production in Arkansas include the soybean cyst nematode (Heterodera glycines, Ichinoe) and the southern root-knot nematode (Meloidogyne incognita, Kofoid & White, Chitwood). Both nematodes have been historically present in Arkansas soybean and cotton fields (Kirkpatrick et al., 1992; Bateman et al., 2000; Walter and Barker, 1994; Tylka and Marett, 2014). A survey from 2018 identified that soybean cyst and root-knot nematode

J. E. Wilkes, T. L. Kirkpatrick

Journal of Nematology, Volume 52 , 1–15

research-article | 30-November-2019

Additional notes on the morphology and molecular data of the Kikuyu root-knot nematode, Meloidogyne kikuyensis (Nematoda: Meloidogynidae)

nodule-like gall were elucidated by light, scanning, and transmission electron microscopy (Eisenback and Dodge, 2012; Dodge, 2014). The galls induced by M. kikuyensis are unique and more complex than those caused by most root-knot nematode species. The vascular tissues that supply the giant cells with nutrients occur at a right angle to the vascular cylinder in the main root. Unlike most species of root-knot nematodes, feeding cells of M. kikuyensis appear to be formed by the dissolution of cell

J. D. Eisenback, P. Vieira

Journal of Nematology, Volume 52 , 1–13

research-article | 17-March-2020

Silver nanoparticles as a potential nematicide against Meloidogyne graminicola

Rice (Oryza sativa) is a major life-sustaining crop in India and feeds more than 60% of the population. During 2014 to 2015, the area under rice crop in India was 43.86 million ha with a total rice production of 105.48 million tons (Anonymous, 2016). Rice root-knot nematode, Meloidogyne graminicola, is widely distributed across diverse agro-climatic conditions in India (Salalia et al., 2017) and it has emerged as the economically most threatening plant-parasitic nematode in rice nurseries

Richa Baronia, Puneet Kumar, S. P. Singh, R. K. Walia

Journal of Nematology, Volume 52 , 1–9

research-article | 26-April-2019

First report of Meloidogyne javanica on Ginger and Turmeric in the United States

Abolfazl Hajihassani, Weimin Ye, Brooke B. Hampton

Journal of Nematology, Volume 51 , 1–3

research-article | 30-November-2019

Mixtures of fluopyram and abamectin for management of Meloidogyne incognita in tomato

Nematodes are important parasites of crops. The economic losses caused by nematodes worldwide exceed 157 billion US dollars annually (Abad et al., 2008). Root-knot nematodes have a wide host range and are especially harmful to plants in the Cucurbitaceae and Solanaceae (Nicol et al., 2011). Tomato is extensively cultivated worldwide and highly susceptible. When the southern root-knot nematode (RKN) Meloidogyne incognita infects tomato, the second-stage juveniles (J2) penetrate young roots

Qing-Qing Li, Jing-Jing Li, Qi-Tong Yu, Ze-Yu Shang, Chao-Bin Xue

Journal of Nematology, Volume 52 , 1–11

Article | 24-July-2017

Management of Root-knot Nematode (Meloidogyne incognita) onPittosporum tobira Under Greenhouse, Field, and On-farm Conditions in Florida


Journal of Nematology, Volume 49 , ISSUE 2, 133–139

research-article | 16-January-2021

Occurrence and molecular characterization of Meloidogyne graminicola on rice in Central Punjab, Pakistan

and/or multiple copies of the sequences that are reported previously in other RKN species (Powers, 2004). Indeed, the high degree of genetic diversity among the Pakistani isolates relative to other regions suggests Pakistan as a possible ancestral area for the Asian isolates of this species (Figure 6). Our results confirmed that all Pakistani sequenced isolates of root-knot nematode collected from rice were M. graminicola. The populations are quite morphologically homogeneous, with only slight

Abdul Jabbar, Nazir Javed, Anjum Munir, Huma Abbas, Sajid A. Khan, Anam Moosa, Muhammad Jabran, Byron J. Adams, Muhammad A. Ali

Journal of Nematology, Volume 52 , 1–17

Article | 05-December-2017

Influence of Root Exudates and Soil on Attachment of Pasteuria penetrans to Meloidogyne arenaria

Abstract: The bacterium Pasteuria penetrans is a parasite of root-knot nematodes (Meloidogyne spp.). Endospores of P. penetrans attach to the cuticle of second-stage juveniles (J2) and subsequently sterilize infected females. When encumbered by large numbers of spores, juveniles are less mobile and their ability to infect roots is reduced. This study looked at different factors that influence spore attachment of P. penetrans to the root-knot nematode Meloidogyne arenaria. Pretreatment of J2


Journal of Nematology, Volume 49 , ISSUE 3, 304–310

research-article | 23-April-2019

Resistant Pepper Carrying N, Me1, and Me3 have Different Effects on Penetration and Reproduction of Four Major Meloidogyne species

, 2000; Pegard et al., 2005). Resistance to root-knot nematode infection is established as an inhibition or decrease of nematode penetration and/or reproduction (Trudgill, 1991; Williamson and Kumar, 2006) and is characterized by a localized hypersensitive reaction in host plants (Pegard et al., 2005). The development of successful Meloidogyne-resistant pepper breeding programs is dependent on the characterization of new resistant pepper lines. Multiple dominant resistance genes effective against

Abolfazl Hajihassani, William B. Rutter, Xuelin Luo

Journal of Nematology, Volume 51 , 1–9

research-article | 30-November-2019

Festulolium and fungal endophyte associations: host status for Meloidogyne incognita and nematotoxic plant extracts

Notes: Festulolium lines with the U2 and U5 endophyte strains were also tested after inoculation with the root-knot nematode (RKN) Meloidogyne incognita. a−RKN = not inoculated with M. incognita; +RKN = inoculated with M. incognita; bNFL = N-formylloline; NAL = N-acetylloline; NANL = N-acetylnorloline; NML = N-methylloline. Total loline = NFL + NAL + NANL + NML. Eggs immersed in methanolic extracts from U6 E+ and U6 E− roots and shoots For the analyzed rates of the extracts, hatch was not

Susan L. F. Meyer, Brian J. Patchett, Timothy J. Gillanders, Mihail R. Kantor, Patricia Timper, Margaret H. MacDonald

Journal of Nematology, Volume 52 , 1–16

research-article | 16-April-2020

Nematicide efficacy at managing Meloidogyne arenaria and non-target effects on free-living nematodes in peanut production

Peanut (Arachis hypogaea) is an important crop in the United States with 757,000 ha planted in 2018, worth $1.15 billion (NASS-USDA, 2019a, b). Much of the production is concentrated in the Southeast where Meloidogyne arenaria (peanut root-knot nematode (PRKN)) can significantly reduce yields with suppression approaching 50% observed in field research (Rodriguez-Kabana and Robertson, 1987; Rodriguez-Kabana et al., 1994a, 1994b). Damage thresholds for this nematode are 1 egg/100 cm3, so any

Zane J. Grabau, Mark D. Mauldin, Alemayehu Habteweld, Ethan T. Carter

Journal of Nematology, Volume 52 , 1–10

research-article | 30-November-2019

Yellow and purple nutsedge and coffee senna as hosts of common plant nematodes in Florida

of methyl bromide, lack of nutsedge management with metam sodium and corresponding M. graminis survival within tubers might be a contributing factor to this problem. While most root-knot nematode species evaluated reproduced well on yellow and purple nutsedge, only M. graminis, M. hapla, and M. javanica induced visible galls on the former and only M. graminis induced visible galls on purple nutsedge. Similarly, M. incognita caused galling on coffee senna, but did not reproduce well on this plant

Maria de Lourdes Mendes, Donald W. Dickson, William T. Crow

Journal of Nematology, Volume 52 , 1–9

Research Article | 03-September-2018

Activity of Vetiver Extracts and Essential Oil against Meloidogyne incognita

Vetiver, a nonhost grass for certain nematodes, was studied for the production of compounds active against the southern root-knot nematode, Meloidogyne incognita. In laboratory assays studying the effects on second-stage juvenile (J2) activity and viability, crude vetiver root and shoot extracts were nematotoxic, resulting in 40% to 70% J2 mortality, and were also repellent to J2. Vetiver oil did not exhibit activity against J2 in these assays. Gas chromatography-mass spectrometry analyses of

Kansiree Jindapunnapat, Nathan D. Reetz, Margaret H. MacDonald, Ganga Bhagavathy, Buncha Chinnasri, Noppamas Soonthornchareonnon, Anongnuch Sasnarukkit, Kamlesh R. Chauhan, David J. Chitwood, Susan L.F. Meyer

Journal of Nematology, Volume 50 , ISSUE 2, 147–162

Article | 21-July-2017

Assessment of DAPG-producing Pseudomonas fluorescens for Management of Meloidogyne incognita and Fusarium oxysporum on Watermelon

Pseudomonas fluorescens isolates Clinto 1R, Wayne 1R, and Wood 1R, which produce the antibiotic 2,4-diacetylphloroglucinol (DAPG), can suppress soilborne diseases and promote plant growth. Consequently, these beneficial bacterial isolates were tested on watermelon plants for suppression of Meloidogyne incognita (root-knot nematode: RKN) and Fusarium oxysporum f. sp. niveum (Fon). In a greenhouse trial,Wayne 1R root dip suppressed numbers of RKN eggs per gram root on ‘Charleston Gray’ watermelon


Journal of Nematology, Volume 48 , ISSUE 1, 43–53

research-article | 17-March-2020

First report of root-knot nematode, Meloidogyne arenaria, on lavender in Turkey

. (2014) was reported on L. spica L. (Carneiro et al., 2014). Lavender species, L. spica L. was inoculated with M. arenaria (Neal, 1892; Chitwood, 1949) and was a suitable host for this root-knot nematode (Moreno et al., 1990). However, there is no report on root-knot nematodes infecting lavender in Turkey. In 2019, a survey was carried out in the lavender growing areas in Kırklareli and Edirne provinces of Turkey. The roots of lavender plants with symptoms of stunting were observed and examined

Tevfik Özalp, Gonca Könül, Önder Ayyıldız, Adnan Tülek, Zübeyir Devran

Journal of Nematology, Volume 52 , 1–3

research-article | 30-November-2020

First report of root-knot nematode, Meloidogyne incognita on calendula in Turkey

morphology and morphometric measurements of this population appear to be similar to M. incognita (Eisenback and Triantaphyllou, 1991; Whitehead, 1968). For molecular identification of Meloidogyne sp., genomic, DNA was isolated from J2s using the High Pure PCR Template Preparation Kit (Roche). Subsequently, DNA was analyzed by species-specific primers referring to common root-knot nematode species M. incognita, M. javanica, M. arenaria (Neal, 1889) Chitwood, 1949, M. hapla (Chitwood, 1949), M. fallax

Hürkan Ataş, Gülsüm Uysal, Çiğdem Gözel, Tevfik Özalp, Uğur Gözel, Zübeyir Devran

Journal of Nematology, Volume 53 , 1–5

research-article | 30-November-2020

Host status of morning-glory (Ipomoea spp.) to Meloidogyne species

. enterolobii Uang and Eisenback are distributed in the main areas of agricultural production in Brazil. M. hapla Chitwood, M. morocciensis Rammah and Hirschmann. M. luci Carneiro et al. and M. ethiopica Whitehead, on the other hand, are milder climate species, being more limited to these regions. Some of these are of special interest (M. enterolobii and M. ethiopica) due to their ability to overcome some root-knot nematode resistance genes (Carneiro et al., 2016; Galbieri et al., 2020). Currently, little

Tiago Edu Kaspary, Ismail Teodoro de Souza Júnior, Rodrigo Ferraz Ramos, Cristiano Bellé

Journal of Nematology, Volume 53 , 1–6

research-article | 30-November-2020

Evaluation of a new chemical nematicide, fluazaindolizine (ReklemelTM active), for plant-parasitic nematode management in bermudagrass

Will L. Groover, Kathy S. Lawrence

Journal of Nematology, Volume 53 , 1–14

research-article | 30-November-2018

New Hosts and Records in Portugal for the Root-Knot Nematode Meloidogyne luci

Duarte Santos, António Correia, Isabel Abrantes, Carla Maleita

Journal of Nematology, Volume 51 , 1–4

research-article | 09-April-2020

First report of the root-knot nematode, Meloidogyne morocciensis infecting peach in Southern Brazil

W. R. Silva, C. P. Machaca-Calsin, C. B. Gomes

Journal of Nematology, Volume 52 , 1–3

Article | 21-July-2017

Evaluation of Pochonia chlamydosporia and Purpureocillium lilacinum for Suppression of Meloidogyne enterolobii on Tomato and Banana

Meloidogyne enterolobii is one of the most important root-knot nematode in tropical regions, due to its ability to overcome resistance mechanisms of a number of host plants. The lack of new and safe active ingredients against this nematode has restricted control alternatives for growers. Egg-parasitic fungi have been considered as potential candidates for the development of bionematicides. In tissue culture plates, Pochonia chlamydosporia (var. catenulata and chlamydosporia) and


Journal of Nematology, Volume 49 , ISSUE 1, 77–85

research-article | 30-November-2019

Nematicidal effect of cruciferous bio-fumigants against the root-knot nematode, Meloidogyne incognita infesting okra

influenced due to the attack by several pathogens, such as bacteria, fungi, viruses, nematodes, and abiotic factors. Plant parasitic nematodes are the most harmful pests of vegetable crops, responsible for an annual yield loss amounting to 9 to 15% of the world crop yield (Koenning et al., 2004). Among all the plant parasitic nematodes, root-knot nematodes (Meloidogyne spp.) are a hidden threat to okra (Marin et al., 2017). It has been reported that root-knot nematode causes annual losses up to 29% in

J.A. Patil, Anil Kumar, Saroj Yadav, K.K. Verma

Journal of Nematology, Volume 52 , 1–7

research-article | 30-November-2019

First report of root-knot nematodes (Meloidogyne species) infecting Chinese Elm (Ulmus parvifolia) in Florida, USA

M. R. Moore, J. A. Brito, S. Qiu, C. G. Roberts, L. A. Combee

Journal of Nematology, Volume 52 , 1–4

Research Article | 31-May-2018

Influence of Temperature on Susceptibility of CVS. Tifguard and Georgia-06G Peanut to Meloidogyne arenaria

Weimin Yuan, C. C. Holbrook, Y. Chu, P. Ozias-Akins, D. W. Dickson

Journal of Nematology, Volume 50 , ISSUE 1, 33–40

research-article | 30-November-2019

The relationship between commercial cotton cultivars with varying Meloidogyne incognita resistance genes and yield

The southern root-knot nematode, Meloidogyne incognita (Kofoid and White) Chitwood, is widely distributed across the southern USA. In the Southern High Plains of Texas, M. incognita infested 40 to 50% of the cotton fields (Starr et al., 1993; Wheeler et al., 2000). In the absence of nematode management tactics, it is estimated that M. incognita reduces yield in the west Texas area by an average of 26% (Orr and Robinson, 1984). Management options for this nematode include crop rotation

Terry A. Wheeler, Kerry Siders, Cecilia Monclova-Santana, Jane K. Dever

Journal of Nematology, Volume 52 , 1–8

research-article | 21-October-2020

First report of southern root-knot nematode, Meloidogyne incognita, infecting Brassica nigra in Peru

Province, Peru. In order to identify the plant-parasitic nematode species, a combination of morphological, biochemical, and molecular analyses were performed. Figure 1: A and B: Roots of Brassica nigra (L.) W.D.J. Koch showing galls induced by Meloidogyne incognita (Kofoid and White, 1919; Chitwood, 1949). This population of root-knot nematode was identified to species with esterase phenotypes (n = 36 females) (Carneiro and Almeida, 2001); morphology, and morphometrics of second-stage juveniles

Jorge Airton Gómez-Chatata, Juan José Tamo-Zegarra, Teodocia Gloria Casa-Ruiz, Cristiano Bellé

Journal of Nematology, Volume 52 , 1–3

Research Article | 17-October-2018

Characterization of Meloidogyne indica (Nematoda: Meloidogynidae) Parasitizing Neem in India, with a Molecular Phylogeny of the Species

Neem is a perennial plant of family Meliaceae grown very commonly in India. During a survey in Rajasthan, India; a population of root-knot nematode was found in association with tender neem plants causing yellowing, stunting, and heavy root galling. Inspection of the perineal pattern morphology of the adult females, extracted from the galled roots, primarily led to identification of the species as Meloidogyne indica. Further, detailed morphological and morphometric illustrations of second-stage

Victor Phani, Satyapal Bishnoi, Amita Sharma, Keith G. Davies, Uma Rao

Journal of Nematology, Volume 50 , ISSUE 3, 387–398

Research Article | 17-October-2018

Discovery and Identification of Meloidogyne Species Using COI DNA Barcoding

. The addition of these DNA sequences to GenBank and the Barcode of Life Database (BOLD) should stimulate and facilitate root-knot nematode identification and provide a first step in new species discovery.

Thomas Powers, Timothy Harris, Rebecca Higgins, Peter Mullin, Kirsten Powers

Journal of Nematology, Volume 50 , ISSUE 3, 399–412

research-article | 06-November-2020

The potential of eugenol as a nematicidal agent against Meloidogyne javanica (Treub) Chitwood

differences according to LSD test (P < 0.001). Discussion Terpenes constitute the largest class of secondary metabolites in the plant kingdom (Dudareva et al., 2006) and they possess nematicidal activity against Meloidogyne and other important phytonematodes (Echeverrigaray et al., 2010; Nasiou and Giannakou, 2017, 2018). In this work, we investigated the nematicidal activity of eugenol found as main constituent of clove essential oil, against the root knot nematode M. javanica. Our results showed

Eleni Nasiou, Ioannis O. Giannakou

Journal of Nematology, Volume 52 , 1–10

research-article | 24-April-2020

First report of southern root-knot nematode, Meloidogyne incognita, infecting pomegranate, Punica granatum, in Peru

plant-parasitic nematode species, a combination of morphological, biochemical, and molecular analyses were performed. Figure 1: A: Plants of Punica granatum L. (cv. Wonderful) plants after pruning, showing the slow development of the plants shoots of the galled root system infected with Meloidogne incognita (Kofoid and White, 1919; Chitwood, 1949). B-D: Closeup view of the root system of the P. granatum infected with M. incognita showing galls in roots. This population of root-knot nematode was

Ricardo Andreé Vega-Callo, María Yaquelin Mendoza-Lima, Nataly Ruth Mamani-Mendoza, Leslie Sharon Lozada-Villanueva, Juan José Tamo-Zegarra, Teodocia Gloria Casa-Ruiz, Cristiano Bellé

Journal of Nematology, Volume 52 , 1–3

research-article | 26-October-2020

Xanthosoma sagittifolium is resistant to Meloidogyne spp. and controls Meloidogyne enterolobii by soil biofumigation

Plant-parasitic nematodes cause significant damage in tropical and subtropical agriculture. Among them, the Meloidogyne species, also known as root-knot nematode, affect agricultural production (Jones et al., 2011). The biggest problem in areas infested with these nematodes is the difficulty of managing and controlling them. Many nematicidal products have been withdrawn from the market due to their high toxicity to human beings and the environment (Sousa et al., 2015). Consequently, there is an

Vanessa Alves Gomes, Fabíola de Jesus Silva, Eunice Maria Baquião, Luana Viana Faria, Júlio César Antunes Ferreira, Marcio Pozzobon Pedroso, Fernando Broetto, Silvia Renata Siciliano Wilcken

Journal of Nematology, Volume 52 , 1–12

Research Article | 17-October-2018

NMR Analysis Reveals a Wealth of Metabolites in Root-Knot Nematode Resistant Roots of Citrullus amarus Watermelon Plants

Mihail Kantor, Amnon Levi, Judith Thies, Nihat Guner, Camelia Kantor, Stuart Parnham, Arezue Boroujerdi

Journal of Nematology, Volume 50 , ISSUE 3, 303–316

Research Article | 03-December-2018

First Report of the Root-Knot Nematode (Meloidogyne javanica) Infecting Hops (Humulus lupulus) in Florida, USA

J. A. Brito, S. A. Subbotin, J. Desaeger, F. Achinelly, S. Qiu

Journal of Nematology, Volume 50 , ISSUE 4, 543–544

research-article | 15-April-2019

Nicotinamide adenine dinucleotide induced resistance against root-knot nematode Meloidogyne hapla is based on increased tomato basal defense

have the Mi-1 gene, and cv. VFN (resistance to Verticillium, Fusarium, and root-knot Nematode) with the Mi-1 gene (Urban farmer LLC, Westfield, IN). Both cultivars are susceptible to M. hapla infection. Seeds were germinated in a mixture composed of sand and soil in a 1:1 (v/v) ration. Plants were grown in a growth chamber at 24°C and a 16-h light and 8-h dark regime, with daily watering. After two weeks, seedlings were washed and transferred to trays containing sand mix and kept on the bench for

Noor Abdelsamad, H. Regmi, J. Desaeger, P. DiGennaro

Journal of Nematology, Volume 51 , 1–10

research-article | 30-November-2018

Meloidogyne aegracyperi n. sp. (Nematoda: Meloidogynidae), a root-knot nematode parasitizing yellow and purple nutsedge in New Mexico

University revealed several unusual morphological characters and a unique host range that indicated it was a new species. The perineal pattern, shape of the female stylet, and shape of the male head and stylet were unique and different from those of any other described species. Meloidogyne aegracyperi n. sp. is described herein, and the common name ‘nutsedge root-knot nematode’ is proposed. The specific epithet was derived from the Latin word ‘aegra’ and the host plant name, meaning ‘diseased Cyperus

J. D. Eisenback, L. A. Holland, J. Schroeder, S. H. Thomas, J. M. Beacham, S. F. Hanson, V. S. Paes-Takahashi, P. Vieira

journal of nematology, Volume 51 , 1–16

research-article | 30-November-2018

First Report of the Root-Knot Nematode, Meloidogyne floridensis Infecting Guardian® Peach Rootstock in South Carolina, USA

The peach root-knot nematode (RKN), Meloidogyne floridensis (Handoo et al., 2004), is an important parasite that can severely impact commercial peach production because of its capability to overcome RKN resistance in peach rootstocks. This nematode species was first described in Florida in 2004 (Handoo et al., 2004) where it is currently found in 12 counties (Brito et al., 2015) and was recently detected in two counties in California (Westphal et al., 2019). In 2018 to 2019, during surveys for

Gregory L. Reighard, William G. Henderson, Sarah O. Scott, Sergei. A. Subbotin

journal of nematology, Volume 51 , 1–6

research-article | 30-November-2020

First report and new molecular and morphological characterizations of root-knot nematode, Meloidogyne javanica, infecting ginger and long coriander in Vietnam

slides following Nguyen et al. (2019). For morphological characterization, measurements and pictures were taken from permanent slides using Carl Zeiss Axio Lab. A1 light microscope equipped with a Zeiss Axiocam ERc5s digital camera. For molecular characterization, Multiplex-PCR using primers Mi2F4/Mi2R1, Far/Rar, and Fjav/Rjav was performed following Kiewnick et al. (2013) to quickly identify M. javanica from closely related species in the tropical root-knot nematode group. The D2-D3 region of 28S

Ke Long Phan, Thi Mai Linh LE, Huu Tien Nguyen, Thi Duyen Nguyen, Quang Phap Trinh

Journal of Nematology, Volume 53 , 1–8

Article | 05-December-2017

The Mesostigmatid Mite Protogamasellus mica, an Effective Predator of Free-Living and Plant-Parasitic Nematodes

Protogamasellus mica was extracted from a sugarcane field in Australia and cultured on bacterial-feeding nematodes. Studies with various nematodes in laboratory arenas showed that one mite and its progeny reduced nematode numbers by between 26 and 50 nematodes/day. A bacterivore (Mesorhabditis sp.), a fungivore (Aphelenchus avenae), and two plant parasites (root-knot nematode, Meloidogyne javanica and root-lesion nematode, Pratylenchus zeae) were all reduced at much the same rate despite the


Journal of Nematology, Volume 49 , ISSUE 3, 327–333

research-article | 26-April-2019

Control of Meloidogyne incognita in sweetpotato with fluensulfone

: aPlot size: 6.1 m long section of 152-cm wide beds. Two lines of sweetpotato planted per bed. Table 2 Average yield (n = 5 ± standard error) of harvested sweetpotato after four treatments assigned to three categories, market (marketable size and quality), cull RKN (culled because of root-knot nematode damage), and cull other (culled because of non-nematode causes). Field trials were conducted during 2016 (cultivar O’Henry) and 2017 (cultivar Beauregard) at SCREC, Irvine, CA1

Antoon Ploeg, Scott Stoddard, J. Ole Becker

Journal of Nematology, Volume 51 , 1–8

Article | 21-July-2017

Optimum Concentrations of Trichoderma longibrachiatum and Cadusafos for Controlling Meloidogyne javanica on Zucchini Plants


Journal of Nematology, Volume 48 , ISSUE 1, 54–63

Article | 24-July-2017

Reproduction of Meloidogyne incognita and M. graminis on Several Grain Sorghum Hybrids


Journal of Nematology, Volume 49 , ISSUE 2, 156–161

research-article | 30-November-2018

Identification of Suitable Meloidogyne spp. Housekeeping Genes

Weiming Hu, Peter M. DiGennaro

journal of nematology, Volume 51 , 1–11

research-article | 24-April-2020

Differences in parasitism of root-knot nematodes (Meloidogyne spp.) on oilseed radish and oat

Grassland Oregon, Salem, OR. Also, oilseed radish cv. Concorde, Control, Eco-Till, Karakter and Cannavaro as well as Pratex black oat were obtained from Allied Seed, LLC, Nampa, ID. Tomato cv. Rutgers, an excellent host for all root-knot nematode species, was included in the experiments as a standard host. Host suitability assay This study was conducted from June to October 2018. Seeds of the oilseed radish and oat cultivars were germinated in Miracle-Gro Moisture Control potting mix (The Scotts

Negin Hamidi, Abolfazl Hajihassani

Journal of Nematology, Volume 52 , 1–10

research-article | 23-April-2019

Fusarium wilt of cotton may commonly result from the interaction of Fusarium oxysporum f. sp. vasinfectum with Belonolaimus longicaudatus

. vasinfectum (Fov) causes FW in cotton. FW incidence fluctuates greatly from year to year due to different management practices and environmental conditions (Davis et al., 2006; Hermanto et al., 2009; Lawrence et al., 2017). Meloidogyne incognita, the southern root-knot nematode, causes the greatest losses of any single pathogen of cotton in the USA (Lawrence et al., 2015), and the synergistic interaction of Fov with M. incognita that can result in greatly increased FW is well documented (Cooper and Brodie

Mychele B. da Silva, Richard F. Davis, Hung K. Doan, Robert L. Nichols, Robert C. Kemerait, Hannah C. Halpern, Marin T. Brewer, Ganpati Jagdale, Peng W. Chee

Journal of Nematology, Volume 51 , 1–10

research-article | 17-April-2019

Effect of spirotetramat and fluensulfone on population densities of Mesocriconema xenoplax and Meloidogyne incognita on peach

persica (L.) Batch] due to its association with the disease complex known as peach tree short life (PTSL) (Brittain and Miller, 1978; Nyczepir et al., 1983; Nyczepir, 1989). In a survey of commercial peach orchards in South Carolina and Georgia, M. xenoplax was detected in 100% of soil samples collected from those orchards where PTSL was present (Nyczepir et al., 1985). Peach tree decline, unlike PTSL, is often associated with the root-knot nematode (Meloidogyne spp.) and the root-lesion nematode

Andrew M. Shirley, James P. Noe, Andrew P. Nyczepir, Phillip M. Brannen, Benjamin J. Shirley, Ganpati B. Jagdale

Journal of Nematology, Volume 51 , 1–10

Article | 21-July-2017

Evaluation of Steam and Soil Solarization for Meloidogyne arenaria Control in Florida Floriculture Crops

Steam and soil solarization were investigated for control of the root-knot nematode Meloidogyne arenaria in 2 yr of field trials on a commercial flower farm in Florida. The objective was to determine if preplant steam treatments in combination with solarization, or solarization alone effectively controlled nematodes compared to methyl bromide (MeBr). Trials were conducted in a field with naturally occurring populations of M. arenaria. Treatments were solarization alone, steam treatment after


Journal of Nematology, Volume 48 , ISSUE 3, 183–192

Article | 24-July-2017

Grafting and Paladin Pic-21 for Nematode and Weed Management in Vegetable Production

Two years of field trials conducted in a Meloidogyne incognita-infested field evaluated grafting and Paladin Pic-21 (dimethyl disulfide:chloropicrin [DMDS:Pic] 79:21) for root-knot nematode and weed control in tomato and melon. Tomato rootstocks evaluated were; ‘TX301’, ‘Multifort’, and ‘Aloha’. ‘Florida 47’ was the scion and the nongrafted control. A double crop of melon was planted into existing beds following tomato harvest. Melon


Journal of Nematology, Volume 48 , ISSUE 4, 231–240

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