NEMATODES IN TOBACCO IN THE MARITIME PROVINCES OF CANADA

1976 ◽  
Vol 56 (2) ◽  
pp. 357-364 ◽  
Author(s):  
J. KIMPINSKI ◽  
K. E. LELACHEUR ◽  
L. S. THOMPSON ◽  
C. B. WILLIS ◽  
C. F. MARKS
Keyword(s):  
New Brunswick ◽  
Prince Edward Island ◽  
Parasitic Nematodes ◽  
Meloidogyne Hapla ◽  
Plant Parasitic Nematodes ◽  
Maritime Provinces ◽  
Nicotiana Tabacum L ◽  
Tobacco Roots ◽  
Plant Parasitic

Soil and root samples were collected from tobacco (Nicotiana tabacum L.) fields in Prince Edward Island, Nova Scotia, and New Brunswick in 1970 and 1972, and also from P.E.I, in 1971 and 1974. Twenty genera of plant and soil nematodes were recovered. The dominant plant-parasitic species were Pratylenchus crenatus Loof, 1960 and P. penetrans (Cobb, 1917) Filipjev and Stek., 1941. These two species were often found in the same sample and were most numerous in P.E.I., though their numbers were lower than had been recorded previously in forage and vegetable surveys. Meloidogyne hapla Chitwood, 1949 was recovered in low numbers from some of the samples. Nematicide treatments usually reduced the number of Pratylenchus spp., but there were no significant increases in yield or quality of tobacco. Laboratory and greenhouse experiments indicated that M. hapla did not invade or reproduce in tobacco roots as quickly as did P. penetrans. Neither species influenced plant growth significantly. It was concluded that plant-parasitic nematodes are riot a major problem in tobacco in the Maritime provinces.

scholarly journals Plant parasitic nematodes and their management in the Maritime provinces of Canada

2005 ◽  
Vol 71 (2) ◽  
pp. 45-54 ◽  
Author(s):  
J. Kimpinski ◽  
L.S. Thompson
Keyword(s):  
Crop Yields ◽  
Nematode Species ◽  
Parasitic Nematodes ◽  
Meloidogyne Hapla ◽  
Plant Parasitic Nematodes ◽  
Root Knot Nematode ◽  
Maritime Provinces ◽  
Management Procedures ◽  
The Impact ◽  
Plant Parasitic

This paper presents a review of the plant parasitic nematodes that are of concern in New Brunswick, Nova Scotia, and Prince-Edward-Island, and the approaches used to manage them. The root lesion nematode (Pratylenchus penetrans) is the only nematode species in the region that regularly reduces crop yields. The northern root-knot nematode (Meloidogyne hapla) occasionally causes damage to carrots (Daucus carota), but population levels of this nematode species usually are very low. The clover cyst nematode (Heterodera trifolii) is widespread, but has not caused any damage to crops in the region. Management procedures used to reduce the impact of plant parasitic nematodes in the Maritime provinces, e.g. crop rotations, nematicide treatments, enforcement of quarantine regulations, and tillage practices are discussed. A nematode advisory service is also considered.

Bacillus thuringiensiscrystal protein toxicity against plant-parasitic nematodes

2008 ◽  
Vol 5 (1) ◽  
pp. 13-17 ◽  
Author(s):  
Yu Zi-Quan ◽  
Wang Qian-Lan ◽  
Liu Bin ◽  
Zou Xue ◽  
Yu Zi-Niu ◽  
...  
Keyword(s):  
Parasitic Nematodes ◽  
Meloidogyne Hapla ◽  
Plant Parasitic Nematodes ◽  
Parasporal Crystal ◽  
Crystal Proteins ◽  
Parasporal Crystal Protein ◽  
Pratylenchus Scribneri ◽  
Ditylenchus Destructor ◽  
Protein Toxicity ◽  
Plant Parasitic

AbstractA bioassay method was developed to use the parasporal crystal protein ofBacillus thuringiensisagainst plant-parasitic nematodes. Using this method, the parasporal crystal proteins of tenBtstrains showed activity against plant-parasitic nematodes. The toxicity of YBT-021 againstMeloidogyne hapla,Pratylenchus scribneri,Tylenchorhynchussp.,Ditylenchus destructorandAphelenchoidessp. was also assayed. The resulting LC50values were 35.62 μg/ml, 75.65 μg/ml, 94.31 μg/ml, 215.21 μg/ml and 128.76 μg/ml, respectively.

scholarly journals Some notes on the occurrence of plant parasitic nematodes of fruit trees in Slovakia

2008 ◽  
Vol 43 (No. 1) ◽  
pp. 26-32 ◽  
Author(s):  
M. Lišková ◽  
N. Sasanelli ◽  
D. lsquoAddabbo T
Keyword(s):  
Nematode Species ◽  
Fruit Trees ◽  
Plant Viruses ◽  
Parasitic Nematodes ◽  
Individual Species ◽  
Meloidogyne Hapla ◽  
Plant Parasitic Nematodes ◽  
Fruit Orchards ◽  
Longidorus Elongatus ◽  
Plant Parasitic

Forty plant parasitic nematode species were identified in soil of fruit orchards in the southeastern and southwestern areas of the Danubian Lowlands and East Slovak Lowland, characterised by light sandy soil of riverine origin, locally combined with drift sand landscape. They were <i>Ditylenchus dipsaci</i>, <i>Helicotylenchus canadensis</i>, <i>H. digonicus</i>, <i>H. dihystera</i>, <i>H. multicinctus</i>, <i>Rotylenchus agnetis</i>, <i>R. fallorobustus</i>, <i>R. goodeyi</i>, <i>Rotylenchulus borealis</i>, <i>Pratylenchus crenatus</i>, <i>P. penetrans</i>, <i>P. pratensis</i>, <i>P. thornei</i>, <i>Zygotylenchus guevarai</i>, <i>Pratylenchoides laticauda</i>, <i>Meloidogyne hapla</i>, <i>Bitylenchus dubius</i>, <i>Tylenchorhynchus cylindricus</i>, <i>Merlinius nanus</i>, <i>Macroposthonia antipolitana</i>, <i>M. rustica</i>, <i>M. xenoplax</i>, <i>Paratylenchus bukowinensis</i>, <i>P. elachistus</i>, <i>P. nanus</i>, <i>P. projectus</i>, <i>Longidorus elongatus</i>, <i>L. euonymus</i>, <i>L. juvenilis</i>, unidentified <i>Longidorus</i> sp., <i>Xiphinema diversicaudatum</i>, <i>X. italiae</i>, <i>X. pachtaicum</i>, <i>X. taylori</i>, <i>X. vuittenezi</i>, <i>Trichodorus primitivus</i>, <i>T. sparsus</i>, <i>T. viruliferus</i>, <i>Paratrichodorus macrostylus</i> and <i>P. pachydermus</i>. Many of the observed species are phytopathologically important parasites of fruit trees and some are also vectors of plant viruses. The frequency of occurrence, dominance and abundance of individual species were determined.

Spatial and spatiotemporal analysis of Meloidogyne hapla and Pratylenchus penetrans populations in commercial potato fields in New York, USA

Nematology ◽  
2020 ◽  
pp. 1-13
Author(s):  
Adrienne M. Gorny ◽  
Frank S. Hay ◽  
Paul Esker ◽  
Sarah J. Pethybridge
Keyword(s):  
New York ◽  
Spatiotemporal Analysis ◽  
Parasitic Nematodes ◽  
Meloidogyne Hapla ◽  
Pratylenchus Penetrans ◽  
Plant Parasitic Nematodes ◽  
Population Densities ◽  
Semivariogram Analysis ◽  
Commercial Potato ◽  
Plant Parasitic

Summary Meloidogyne hapla and Pratylenchus penetrans are important plant-parasitic nematodes affecting potato in New York and the Northeastern United States, yet little is known of their spatial patterns and spatiotemporal dynamics. Spatial patterns of M. hapla and Pratylenchus spp. were quantified using semivariogram analysis and Spatial Analysis by Distance IndicEs (SADIE). Nematode populations were assessed within each of three commercial potato fields in 2016 and 2017, with fields sampled on two occasions in-season. Semivariogram analysis and ordinary kriging indicated initial population densities to be spatially dependent over an average range of 110 m for M. hapla and 147 m for Pratylenchus spp. SADIE indicated Pratylenchus spp. to be significantly aggregated in nearly all fields (10 of 12 samplings, to 2.113). Meloidogyne hapla populations were aggregated in only three of 12 samplings ( to 1.738). Spatiotemporal analysis using the association function of SADIE indicated a strong and significant association between initial and final population densities of M. hapla and Pratylenchus spp. within fields. This information is fundamental for the development of enhanced sampling protocols for estimation of plant-parasitic nematodes and evaluating the feasibility of site-specific nematicide application in New York potato fields.

scholarly journals Distribution of plant-parasitic nematodes in strawberry and raspberry fields in Quebec

2005 ◽  
Vol 75 (2) ◽  
pp. 101-107 ◽  
Author(s):  
G. Bélair ◽  
S. Khanizadeh
Keyword(s):  
Fragaria X Ananassa ◽  
Soil Samples ◽  
Rubus Idaeus ◽  
Parasitic Nematodes ◽  
Meloidogyne Hapla ◽  
Plant Parasitic Nematodes ◽  
Homogeneous Groups ◽  
Eastern Townships ◽  
Agricultural Regions ◽  
Plant Parasitic

In a survey of plant-parasitic nematodes associated with strawberry (Fragaria x ananassa) and raspberry (Rubus idaeus) in seven Quebec agricultural regions (Eastern Townships, L'Assomption, Mauricie, Nicolet, Quebec, Richelieu, and Saint-Jean), 213 soil samples were analyzed in June and July 1980. The most commonly encountered nematode genus was Pratylenchus, occurring in 56.3 % and 46.4% of sampled strawberry and raspberry fields, respectively. The population density of Pratylenchus was negatively correlated with that of Meloidogyne hapla and with soil pH. No Paratylenchus was found in raspberry fields from the Mauricie and Richelieu regions. M. hapla was found in strawberry fields of the L'Assomption, Nicolet, Quebec and Saint-Jean regions, and also in raspberry fields in the Quebec and Saint-Jean regions. The genus Xiphinema was recorded in only one raspberry field in the Eastern Townships. Tylenchus, Tylenchorhynchus and Helicotylenchus were not found on raspberry. Agricultural regions were divided into homogeneous groups with respect to their nematode distribution as revealed by cluster analysis.

scholarly journals Diversity and distribution of plant parasitic-nematodes on golf courses in localities of Baja California Sur, Mexico

2021 ◽  
Vol 38 (3) ◽  
pp. 652-661
Author(s):  
Omar Sánchez-Arce ◽  
Alejandro Palacios-Espinosa ◽  
José Carillo-Fasio ◽  
Luis Hernández-Montiel ◽  
José Hernández-Rubio ◽  
...  
Keyword(s):  
Baja California ◽  
Soil Samples ◽  
Parasitic Nematodes ◽  
Tourist Attraction ◽  
Golf Courses ◽  
Baja California Sur ◽  
Plant Parasitic Nematodes ◽  
Funnel Technique ◽  
Plant Parasitic

Golf is a tourist attraction in Baja California Sur (BCS), Mexico. However, the quality of its fields is detracted by presenting yellowing and death on tufgrass. Plant parasitic nematodes are one of the main limitations around the world. However, in BCS, its presence is unknown. In order to determine the diversity and distribution of phytonmatodes in golf courses in BCS, soil samples were collected in four courses. Nematode extraction was done using the Baerman funnel technique. Specimens were identified at the genus level and the population in each zone was quantified. The genera Meloidogyne, Helicotylenchus, Criconema, Xiphinema, Pratylenchus, Tylenchus, Hoplolaimus and Trichodorus were associated with the death of tufgrass with significant variations (p<0.05) in populations. These results are the first records of these genera in the golf courses evaluated, useful in the development of in the State.

scholarly journals Bacteria isolated from the cuticle of plant-parasitic nematodes attached to and antagonized the root-knot nematode Meloidogyne hapla

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Olivera Topalović ◽  
Ahmed Elhady ◽  
Johannes Hallmann ◽  
Katja R. Richert-Pöggeler ◽  
Holger Heuer
Keyword(s):  
Parasitic Nematodes ◽  
Meloidogyne Hapla ◽  
Plant Parasitic Nematodes ◽  
Root Knot Nematode ◽  
Plant Parasitic

Antagonistic role of the microbiome from a Meloidogyne hapla-suppressive soil against species of plant-parasitic nematodes with different life strategies

Nematology ◽  
2019 ◽  
Vol 22 (1) ◽  
pp. 75-86 ◽  
Author(s):  
Olivera Topalović ◽  
Holger Heuer ◽  
Annette Reineke ◽  
Jana Zinkernagel ◽  
Johannes Hallmann
Keyword(s):  
Soil Microbiome ◽  
Parasitic Nematodes ◽  
Life Strategies ◽  
Meloidogyne Hapla ◽  
Direct Effects ◽  
Plant Parasitic Nematodes ◽  
Management Options ◽  
Suppressive Soil ◽  
Split Root System ◽  
Plant Parasitic

Summary In certain soils populations of plant-parasitic nematodes (PPN) decline. Understanding this effect may open up environmentally friendly management options. We identified such a suppressive soil containing virtually no PPN. Inoculated Meloidogyne hapla declined in this soil more than in a control soil and reproduction on tomato was reduced. The extracted soil microbiome alone decreased root invasion of second-stage juveniles (J2) and progeny as well as the native soil. We tested the antagonistic potential against PPN that differ in life strategies. The microbiome was most suppressive against two populations of M. hapla and one population of Pratylenchus neglectus, and least suppressive against M. incognita and the ectoparasite Hemicycliophora conida. In a split-root system with M. hapla, plant-mediated but not direct effects of the microbiome significantly reduced root invasion of J2, while direct exposure of M. hapla to the microbiome significantly affected reproduction. Overall, both plant-mediated and direct effects of the microbiome were responsible for the soil suppressiveness against M. hapla.

Sign in / Sign up

Export Citation Format

Share Document