Distribution of parasitic nematodes in vineyards in central and north-eastern Victoria

1983 ◽  
Vol 23 (121) ◽  
pp. 221 ◽  
Author(s):  
AR Harris
Keyword(s):  
Meloidogyne Javanica ◽  
Economic Importance ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Grapevine Fanleaf Virus ◽  
North Central ◽  
The North ◽  
Tylenchulus Semipenetrans ◽  
Three Samples ◽  
North Eastern

A survey of 16 1 vineyards in central and north-eastern Victoria determined the distribution of plant parasitic nematodes, particularly Xiphinema index, a vector of grapevine fanleaf virus. From the North-Central and Geelong Vine Disease Districts respectively, 185 and 3 soil samples were collected between 1978 and 1982. Fifteen genera of stylet-bearing nematodes were found, and those of known or suspected economic importance were Helicotylenchus (found in 24% of samples), Pratylenchus (21%), Xiphinema ( 13%), Criconemella (8%), Longidorus (7%) and Paratrichodorus (2%) . X. index was found in three samples from two vineyards, both within 10 km of Rutherglen in north-eastern Victoria. Neither Meloidogyne javanica nor Tylenchulus semipenetrans were detected, although both are common in other viticultural areas of Victoria.

scholarly journals STUDIES ON THE OCCURRENCE, DISTRIBUTION AND COMMUNITY OF THE NEMATODES ASSOCIATED WITH GROUNDNUT FROM HOOGHLY DISTRICT OF WEST BENGAL, INDIA

2020 ◽  
Vol 21 (supplement 1) ◽  
Author(s):  
Shimpy Sarkar ◽  
Kusal Roy ◽  
Arshdeep Singh
Keyword(s):  
Meloidogyne Incognita ◽  
West Bengal ◽  
Meloidogyne Javanica ◽  
Community Study ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Rotylenchulus Reniformis ◽  
Huge Number ◽  
Three Samples ◽  
Plant Parasitic

In a survey of four major groundnut growing blocks of the Hooghly district of West Bengal forty-three samples of soil were sampled for the purpose of studying the occurrence and distribution of rhizospheric nematodes population. Community study revealed presence of six nematode genera viz., Criconemoides, Rotylenchulus, Tylenchorhynchus, Meloidogyne, Hirschmanniella, and Pratylenchus in the rhizosphere of groundnut crop. Most predominant phytonematode in groundnut has been identified as Criconemoides sp. which is followed by Rotylenchulus and Tylenchorhynchus. The species of nematodes such as Meloidogyne incognita and Meloidogyne javanica were identified. Criconemoides sp. and Tylenchorhynchus mashhoodi were recorded highest from Chiladangi area of Pursurah block of Hooghly district. Meloidogyne incognita was recorded maximum from Haripal block. Rotylenchulus reniformis was also recorded in huge number from Samanta Road areas of Pursurah block. Apart from these plant parasitic nematodes, mononchids (especially Mylonchulus sp.) the predatory nematodes and saprophytic nematodes have also shown their presence in the population of the wide ranged nematodes associated with groundnut crop.

Westward Palaearctic range expansion of Papilio demoleus Linnaeus, 1758 (Lepidoptera: Papilionidae) and its arrival at Mediterranean coastal regions of Turkey and Syria

2020 ◽  
Vol 71 (4) ◽  
pp. 257-272
Author(s):  
Onat Başbay ◽  
Mudar Salimeh ◽  
Eddie John
Keyword(s):  
Eastern Mediterranean ◽  
Economic Importance ◽  
Invasive Pest ◽  
Pest Species ◽  
Coastal Regions ◽  
The North ◽  
North Eastern ◽  
The World ◽  
Invasive Pest Species ◽  
Papilio Demoleus

We review the continuing and extensive spread of Papilio demoleus in south-eastern Turkey and in regions of Turkey and Syria adjacent to the north-eastern Mediterranean. Since the authors documented the arrival of this attractive but potentially destructive papilionid species at coastal areas of Syria in 2019, regular monitoring has confirmed successful overwintering there, as well as in Turkey. As previously indicated, P. demoleus is widely recognized as an invasive pest species in Citrus-growing areas of the world and hence its arrival is of potential economic importance to a region in which citrus is widely grown.

Factors affecting the adhesion of micro-organisms to the surfaces of plant-parasitic nematodes

Parasitology ◽  
1989 ◽  
Vol 98 (1) ◽  
pp. 155-164 ◽  
Author(s):  
A. F. Bird ◽  
Ingrid Bonig ◽  
A. Bacic
Keyword(s):  
Meloidogyne Javanica ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Pasteuria Penetrans ◽  
Con A ◽  
Factors Affecting ◽  
Pas Staining ◽  
Pre Treatment ◽  
Micro Organisms ◽  
Dauer Larvae

SummaryThe influence of various agents on the adhesion of endospores of Pasteuria penetrans to the nematode Meloidogyne javanica was studied. Similarly, but to a lesser degree, we have also studied the adhesion of conidia of the fungus Dilophospora alopecuri and the coryneform bacterium Clavibacter sp. (syn. Corynebacterium rathayi) to the nematode Anguina agrostis (syn. A. funesta). Reduction in the degree of both spore and conidial attachment following their pre-treatment with periodate and the presence of PAS staining material on spores, conidia and bacteria implicated carbohydrate in these interactions. Tests involving both unbound and FITC-bound lectins demonstrated that wheat germ agglutinin (WGA) can inhibit the degree of attachment of P. penetrans to M. javanica and that this inhibition can be overcome by pre-treatment of the lectin with N, N′-diacetyl chitobiose. Endospores of P. penetrans, amphid and buccal secretions of 2nd-stage larvae of M. javanica and the cuticle and excretory pore secretions of 2nd-stage dauer larvae of A. agrostis bound WGA, indicating that accessible N-acetyl-D-glucosamine residues are present on these structures. Endospores of P. penetrans also bound Con A, indicating the presence of accessible α-D-glucose/α-D-mannose residues on their surface.

Plant nematodes associated with fruit trees in northern Australia

1981 ◽  
Vol 21 (108) ◽  
pp. 129 ◽  
Author(s):  
MR Sauer
Keyword(s):  
Carica Papaya ◽  
Fruit Trees ◽  
Soil Samples ◽  
Parasitic Nematodes ◽  
Northern Australia ◽  
Radopholus Similis ◽  
Plant Parasitic Nematodes ◽  
Rotylenchulus Reniformis ◽  
Musa Sp ◽  
Tylenchulus Semipenetrans

Sixteen genera of plant parasitic nematodes were found in 64 soil samples taken around fruit trees of 20 different genera at Kununurra, Darwin, or Adelaide River. Hemicriconemoides cocophilus, Basirolaimus seinhorsti, Rotylenchulus reniformis, Helicotylenchus s p p., and Xiphinema s p p. were found in more than 25% of samples, and Meloidogyne spp.in 16%. Paratrichodorus minor and Rotylenchus incultus were common at Kununurra. Nematodes found in plant roots at Darwin included M. javanica and R. reniformis on Carica papaya, Radopholus similis on Musa sp., Scutellonema brachyurum on Spondias cytherea. Tylenchulus semipenetrans was found in Citrus sp. roots at Adelaide River. Helicotylenchus dihystera was found in roots of Annona spp. at both these places.

Improving the management of plant parasitic nematodes in banana: integration of technologies and responding to the demand of the consumers and markets.

2021 ◽  
pp. 159-166
Author(s):  
Luis Ernesto Pocasangre Enamorado
Keyword(s):  
Life Cycle ◽  
Integrated Management ◽  
Economic Importance ◽  
Future Research ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Future Developments ◽  
Management Optimization ◽  
Damage Symptoms ◽  
Plant Parasitic

Abstract This chapter discusses the economic importance, geographical distribution, host range, damage symptoms, biology and life cycle, interactions with other nematodes and pathogens, recommended integrated management, and management optimization of Radopholus similis infesting bananas. Future research requirements and future developments are also mentioned.

The distribution of Tylenchulus semipenetrans and other parasitic nematodes associated with citrus in northern Victoria

1978 ◽  
Vol 18 (90) ◽  
pp. 148 ◽  
Author(s):  
RH Brown
Keyword(s):  
Soil Samples ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Tylenchulus Semipenetrans ◽  
Citrus Orchards ◽  
Citrus Nematode ◽  
Plant Parasitic

Citrus orchards in the Cobram district of northern Victoria were surveyed in 1976 for the presence of plant parasitic nematodes; in particular for the citrus nematode Tylenchulus semipenetrans. One hundred and forty-six soil samples were collected from 38 orchards. Nine genera were recorded, the most prevalant being Tylenchulus and Paratrichodorus (95 per cent and 37 per cent respectively, of all samples). T. semipenetrans was present in all orchards sampled. Population levels of T. semipenetrans larvae exceeded 1000 per 500 g of soil in 60 per cent of samples.

Distribution of plant parasitic nematodes in South Australian vineyards

1976 ◽  
Vol 16 (81) ◽  
pp. 588 ◽  
Author(s):  
GR Stirling
Keyword(s):  
Sandy Soil ◽  
Parasitic Nematode ◽  
Parasitic Nematodes ◽  
Wide Spread ◽  
Plant Parasitic Nematodes ◽  
Tylenchulus Semipenetrans ◽  
Meloidogyne Spp ◽  
Citrus Nematode ◽  
Almost All ◽  
Plant Parasitic

Vineyards in all five of South Australia's grapegrowing districts were surveyed for plant parasitic nematodes. Root-knot nematodes (Meloidogyne spp.) occurrcd in four districts, and were present in almost all vineyards with sandy soil in the Riverland, Barossa Valley and Central districts. Four species (M. arenaria, M. hapla, M. incognita and M. javanica) were identified. Citrus nematode (Tylenchulus semipenetrans) was wide-spread in Riverland vineyards, and isolated infestations were found in other districts. Other plant parasitic nematode genera found during the survey were Helicotylenchus, Macroposthonia, Paratrichodorus, Paratylenchus, Prat ylenchus, Tylenchorh ynchus and Xiphinema.

Resistance and tolerance of grapevine rootstocks to plant parasitic nematodes in vineyards in north-east Victoria

1989 ◽  
Vol 29 (1) ◽  
pp. 129 ◽  
Author(s):  
M Edwards
Keyword(s):  
Large Population ◽  
Parasitic Nematodes ◽  
Cabernet Sauvignon ◽  
Plant Parasitic Nematodes ◽  
Root Knot Nematode ◽  
North East ◽  
Tylenchulus Semipenetrans ◽  
Effect On Yield ◽  
Citrus Nematode ◽  
Plant Parasitic

Three grapevine rootstock trials in North-East Victoria, Australia, were sampled over several summers to determine nematode populations and the resistance or the tolerance of some commonly used winegrape varieties and rootstocks to plant parasitic nematodes. Rootstocks on which nematodes failed to reproduce or reproduced poorly were considered resistant, rootstocks which supported high populations of nematodes with no apparent effect on yield were considered tolerant. Susceptible rootstocks supported high numbers of nematodes and yielded poorly. The varieties studied were: Shiraz, Chardonnay, Cabernet Sauvignon; and the rootstocks were: Harmony, Richter 110, Schwarzmann, ARG No. 1, 5A Teleki, Rupestris du Lot, 5BB Kober, SO4, Ramsey, K5 1-32 and 1202. The plant parasitic nematodes found on the trial sites were root-knot (Meloidogyne javanica (Treub) Chitwood) and citrus (Tylenchulus semipenetrans Cobb) nematodes. Cabernet Sauvignon, Chardonnay, Shiraz and ARG No. 1 were susceptible to the root-knot nematode. Harmony exhibited tolerance to the citrus nematode and was a good host, allowing a large population to build up. Ramsey appeared to be resistant to the citrus nematode, at least in the Cabernet Sauvignon rootstock trial at Wahgunyah.

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