Abstract
A nematode survey was conducted from 30 vineyards in Missouri and Arkansas (USA) comprising 107 samples among 21 grape cultivars ( Vitis aestivalis , Vitis labruscana , Vitis vinifera , Vitis hybrids, and Muscadinia rotundifolia ). All the samples tested positive for nematode presence. Eleven different nematode taxa were isolated and identified, five of which have economic importance to grapevines: Xiphinema americanum , Meloidogyne spp., Pratylenchus spp., Criconemoides spp., and Tylenchulus spp. Xiphinema americanum was detected at all but two sites, with 58% of sites having populations at or above levels with expected biological and economic impact. This is primarily a concern because of the ability of X. americanum to transmit Tomato ringspot virus and other viruses. The other four nematode taxa of concern were present in fewer samples and at much lower population densities. Xiphinema index, known to vector Grapevine fanleaf virus was not identified in any of the samples collected.
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Claims 5
Claim · model-written summary
Nematode presence was detected in all sampled grape vineyard samples in Missouri and Arkansas.
Verbatim
e0“A nematode survey was conducted from 30 vineyards in Missouri and Arkansas (USA) comprising 107 samples among 21 grape cultivars”
e1“All the samples tested positive for nematode presence”
Claim · model-written summary
Xiphinema americanum was detected at all but two vineyard sites.
- Taxon
- grapee0
- Interactor
- Xiphinema americanumXiphinema americanume2pest
- Outcome
- detectede2
- Value
- all but two sitese2
Verbatim
e2“Xiphinema americanum was detected at all but two sites, with 58% of sites having populations at or above levels with expected biological and economic impact”
e0“grape cultivars”
Claim · model-written summary
Xiphinema americanum populations were at or above levels with expected biological and economic impact at 58% of vineyard sites.
- Taxon
- grapee0
- Interactor
- Xiphinema americanumXiphinema americanume2pest
- Outcome
- populations at or above levels with expected biological and economic impacte2
- Value
- 58%e2
Verbatim
e2“Xiphinema americanum was detected at all but two sites, with 58% of sites having populations at or above levels with expected biological and economic impact”
e0“grape cultivars”
Claim · model-written summary
The other four nematode taxa of concern were present in fewer samples and at much lower population densities.
Verbatim
e3“The other four nematode taxa of concern were present in fewer samples and at much lower population densities”
e0“grape cultivars”
Claim · model-written summary
Xiphinema index was not identified in any sampled vineyard.
- Taxon
- grapee0
- Interactor
- Xiphinema indexXiphinema indexe4pest
- Outcome
- not identifiede4
Verbatim
e4“Xiphinema index, known to vector Grapevine fanleaf virus was not identified in any of the samples collected”
e0“grape cultivars”