The genus Hoplolaimus Daday, 1905 belongs to the subfamily Hoplolaimine Filipiev, 1934 of family Hoplolaimidae (Krall 1990). Daday established this on a single female H. tylenchiformis recovered from mud hole Banco Island, Paraguay in (Sher 1963​, Krall species are distributed worldwide and cause damage numerous agricultural crops (Luc et al. 1990 Robbins 1998​). In 1992, Handoo Golden reviewed 29 valid Dayday, (Handoo 1992). Siddiqi (2000) recognised three subgenera Hoplolaimus:...

The root-knot nematode species Meloidogyne daklakensis n. sp. was discovered on the roots of Robusta coffee (Coffea canephora Pierre ex A. Froehner) in Dak Lak Province, Vietnam. This is characterized by females having rounded or oval perineal patterns, smooth, regular, continuous striae, and reduced lateral lines. dorsal arch low, encloses a quite distinct vulva tail tip. stylet normally straight with well-developed posteriorly sloped knobs. males have cap that extends into lip region....

Abstract Plant‐parasitic nematodes (PPNs) are one of the most damaging pests to plants and able cause significant damage all parts plants, including stems, leaves, flowers, fruits roots. Studies on diversity, host range, distribution identification methods PPNs therefore vital in order create a basis for management. This current study represents first dedicated investigation from medicinal Vietnam, focusing diversity associated with 23 different plant species. In combination literature...

Summary Root-lesion nematodes, Pratylenchus spp., are one of the most important nematode groups in economic terms. The combination morphological analyses and molecular based on D2-D3 28S rDNA, ITS COI mtDNA regions supported establishment a new species, making total 103 valid species. females P. horti n. sp. characterised by following traits: low labial region with two annuli continuous to body, en face form belonging group II sensu Corbett & Clark (1983) submedian triangular-shaped...

Abstract During a survey in the Botanical garden of Ghent University, new species Rotylenchus rhomboides n. sp. and population buxophilus were found. is characterized by presence rhomboid-like widening mid-ridge lateral field at level vulva, feature previously unknown within genus. The species, composed only females, has rounded labial region with 4 to 5 annuli, robust stylet (31–37 μm long), short dorsal esophageal gland (9–19 μm) overlap intestine, vulva located slightly posterior...

Abstract The family Criconematidae is a remarkable group of nematodes, containing roughly 600 nominal root-ectoparasitic species, which many species are known to be significant agricultural pests. Strikingly, our phylogenetic analyses based on 18S, D2-D3 28S rRNA, and COI mtDNA sequences criconematid supported by tree topology tests (SH AU tests), revealed that almost all studied genera, including Criconema , Ogma Crossonema Discocriconema Hemicriconemoides Criconemoides Mesocriconema...

A new root-knot nematode, parasitizing Robusta coffee in Dak Lak Province, Western Highlands of Vietnam, is described as Meloidogyne moensi n. sp. Morphological and molecular analyses demonstrated that this species differs clearly from other previously nematodes. Morphologically, the characterized by a swollen body females with small posterior protuberance elongated ovoid to saccate; perineal patterns smooth striae, continuous low dorsal arch; lateral lines marked faint space or linear...

, belonging to the root-lesion nematode group, is a highly prevalent and destructive plant-parasitic that able infest wide range of host plants. Although this species' devastating impacts on coffee plantations across world are widely known other plants, its association with Ming aralia has never been reported. Our study characterized two popu lations

Abstract During a survey of plant diseases in the Central Highlands Vietnam, new plant-parasitic nematode, Hemicycliophora cardamomi sp. n., was discovered growing areas Amomum longiligulare , valuable medicinal with high economical value. The species is characterized by cuticular sheath loosely fitting body; labial region continuous to body contour bearing 3 annuli; lateral field frequently marked discontinuous single line indistinct additional short lines some parts along modified vulval...

Abstract A new species of the genus Geocenamus was isolated from soil and root samples rhizosphere Casuarina equisetifolia (Casuarinaceae) in Quang Nam province, Vietnam. This is characterized by a round-to-hexagonal labial disc, presence region, which continuous or slightly offset body with six sectors, lateral sectors first annulus being smaller than submedian to seven annules; absence deirids; stylet length 24 28 μ m long, 776 979 long; field eight lines, without areolation at mid-body...

Meloidogyne incognita is considered the most damaging and common root-knot nematode to numerous host plants worldwide. During a survey of nematodes in Vietnam, 1,106 samples from 22 different plant species were collected. M. was recorded on 13 plants. Four populations four chosen for comparison confirmation their morphologic, morphometric, molecular characteristics. Genetically based phylogenetic trees constructed show relationships among nematodes. Molecular barcodes gene regions, ITS,...

Summary This paper presents a method for capturing Scanning Electron Microscope (SEM) photographs of small specimens, including nematodes, arthropods, insects, and other meiofauna. Our is tailored to handle nematode specimens mounted on permanent slides, an area with relatively limited documentation. Besides, the process transferring such delicate from one solution another has historically posed numerous challenges. To address this issue, we introduce low-cost easy-made container designed...

Abstract Our study recorded the presence of Mesocriconema sphaerocephalum on carrot in Hanoi city and Hai Duong province Vietnam. This species was identified by morphometric, morphological characterizations, molecular characterization D2D3 28S rDNA sequence. To our knowledge, this is first report M.

Abstract The taxonomic status of Hemicriconemoides litchi , H. mangiferae and strictathecatus has been in debates for many years. In this study, a population collected from the rhizosphere Piper sarmentosum is characterized using combination morphology molecular data. Our results are agreement with other authors to maintain validity provide sequences correct names on GenBank. A revision genus Vietnam also discussed.

Abstract Background Entomopathogenic nematodes (EPNs) are evidently a useful nematode group for the biocontrol of insect pests. It is well known that efficacy different EPN strains, even belonging to same species, can be significantly varied in localities. Therefore, exploring EPNs and testing their various ecological regions crucial importance find out more efficient strains. On other hand, this practice also needed enhance knowledge on diversity distribution model over world. Results In...