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  • Journal Of Nematology



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

, California. Almond trees (Prunus dulcis) grafted onto peach-almond hybrid rootstocks ‘Hansen 536’ and ‘Bright’s Hybrid®5’, both resistant to southern root-knot nematode (M. incognita) and Javanese root-knot nematode (M. javanica) and having ‘Okinawa’ and ‘Nemaguard’, respectively, in their parentage (McKenry et al., 2007) showed strong symptoms of growth decline (Fig. 1). Extracted root-knot nematodes were identified by both morphological and molecular methods as M. floridensis at the Plant Pest

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

Journal of Nematology , 1–3


Molecular and morphological characterization of the amaryllis lesion nematode, Pratylenchus hippeastri (Inserra et al., 2007), from California

Grapevine (Vitis vinifera) is one of the most extensive fruit crops of agricultural system worldwide (Torregrosa et al., 2015). As per United States Department of Agriculture, National Agricultural Statistics Service, the United States grape production in 2017 was 7,363,260 tons. The highest acreage planted with grapevine is in California, with a total of 880,000 acres planted in 2017 and 925,000 in 2018 (USDA, National Agricultural Statistics Service, 2019). The genus Pratylenchus Filipjev

Zafar A. Handoo, Andrea M. Skantar, Mihail R. Kantor, Saad L. Hafez, Maria N. Hult

Journal of Nematology , 1–5


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 , 1–6


Essential oils for managing Pratylenchus penetrans on Easter lilies

Easter lilies have been the most important crop in Humboldt and Del Norte counties of California (CA) and Curry County, Oregon (OR), USA since the early 1940s. This is the only area of the United States where Easter lily (Lilium longiflorum Thunb.) bulbs are grown commercially. Approximately 250 ha of bulbs are grown each year in a three to six-year rotation with pastures for cattle grazing; thus approximately 2,400 ha are required for the cropping system. Every year more than 11mn bulbs are

B. B. Westerdahl, D. Giraud, L. J. Riddle, C. A. Anderson

Journal of Nematology , 1–7


Marine Sediment Recovered Salinispora sp. Inhibits the Growth of Emerging Bacterial Pathogens and other Multi-Drug-Resistant Bacteria

isolated from distinct locations may produce new molecules, though an accurate identification of the isolate is compulsory (Goodfellow and Fiedler 2010). It is essential to evaluate bacterial growth inhibition by new marine Salinispora strains to find novel antibiotics for fighting the organisms of clinical importance and multi-drug-resistant bacteria. In the present work, obligate marine actinobacteria isolated from Punta Arena de la Ventana (PAV), the Gulf of California (GC), Mexico, were identified


Polish Journal of Microbiology , ISSUE 3, 321–330


Control of Meloidogyne incognita in sweetpotato with fluensulfone

Sweetpotato (Ipomea batatas) production in California was approximately 295 million kg annually during 2010 to 2015 grown on approximately 7,300 ha. California production is second only to North Carolina, and the crop in California is valued at $150 million, which is about 20% of the total US value. Close to 90% of the production in California is concentrated on the sandy soils of Merced County in the San Joaquin Valley (USDA/NASS). Planting material is typically produced in plastic tunnels

Antoon Ploeg, Scott Stoddard, J. Ole Becker

Journal of Nematology , 1–8


First Report of the Spiral Nematode Helicotylenchus microlobus Infecting Soybean in North Dakota

deposited into the GenBank shared 99% identity with two isolates of H.microlobus from California (KM506860.1 and KM506859.1) and one isolate of H. microlobus from Spain (KM506862.1) (Subbotin et al., 2015). It had only 91% sequence identity with seven isolates of H. pseudorobustus (KM506875.1, KM506880.1, KM506876.1,KM506874.1, KM506872.1, KM506879.1, and KM506878.1) from California, Switzerland, and New Zealand, a spiral nematode species very closely related to H. microlobus in morphology


Journal of Nematology , ISSUE 1, 1–1


First Report of the Fig Cyst Nematode, Heterodera fici Kirjanova, on Fig Tree, Ficus carica, in Ontario, Canada

, Norway, Poland, Portugal, Russia, Spain, Yugoslavia, China, Georgia, Iran,Turkey, Uzbekistan, Australia, New Zealand, United States (California, Florida, Louisiana, Maryland, and Virginia), Brazil,Algeria, and South Africa. It is an exotic pest to Canada. To our knowledge, this is the first evidence of the occurrence of H. fici in Canada.


Journal of Nematology , ISSUE 2, 131–132

Research Article

First Report of Stubby-Root Nematode, Paratrichodorus minor, on Onion in Georgia, U.S.A

in the GenBank databases (18S rRNA: MG856931; 28S rRNA: MG856933; ITS1 rDNA: MH464152). The 18S rRNA, 28S D2-D3, and ITS1 rDNA sequences shared 99% similarity (100% coverage) with GenBank accessions of P. minor from California, Arkansas, and China (18S rRNA: JN123365; 28S D2-D3: JN123395; ITS1 rDNA: GU645811). In a pathogenicity test, five sweet onion seeds var. Pirate were planted (one per pot) in 11.5-cm-diameter polyethylene pots containing 1,000 cm3 of equal parts of pasteurized field soil

Abolfazl Hajihassani, Negin Hamidi, Bhabesh Dutta, Chris Tyson

Journal of Nematology , ISSUE 3, 453–455

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