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01000naa a22002652 4500 |
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NLM309791502 |
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DE-627 |
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20231225134705.0 |
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cr uuu---uuuuu |
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231225s2020 xx |||||o 00| ||eng c |
| 024 |
7 |
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|a 10.1094/PDIS-08-19-1791-RE
|2 doi
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| 028 |
5 |
2 |
|a pubmed24n1032.xml
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| 035 |
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|a (DE-627)NLM309791502
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| 035 |
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|a (NLM)32396051
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Yokomi, Raymond K
|e verfasserin
|4 aut
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| 245 |
1 |
0 |
|a Spread of Citrus Tristeza Virus in Citrus Orchards in Central California
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| 264 |
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1 |
|c 2020
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
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|2 rdacarrier
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| 500 |
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|a Date Completed 06.07.2020
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| 500 |
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|a Date Revised 06.07.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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| 520 |
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|a In California, citrus tristeza virus (CTV) is regulated by a State Interior Quarantine. In CTV abatement districts in central California, trees with CTV that react to MCA13 (MCA13-positive [MCA13+]), a strain-discriminating monoclonal antibody, are rogued to prevent virus spread. The Tulare County Pest Control District, however, does not participate in this abatement program except for a 1.6-km2 zone around the Lindcove Research and Extension Center, Exeter, CA. To quantify CTV spread under these two disparate management programs, CTV surveys were conducted in abatement plots with mandatory aphid control and nonabatement plots. Abatement plot surveys used hierarchical sampling of 25% of trees with samples pooled from four adjacent trees. Detection of MCA13+ CTV in a sample prompted resampling and testing of individual trees. From 2008 to 2018, incidence of CTV increased by an average of 3.9%, with only two MCA13+ samples detected. In contrast, in nonabatement plots, incidence of CTV increased by an average of 4.6% between 2015 and 2018. Increase in MCA13-negative (MCA-) isolates was 11 times greater than that of MCA13+ isolates, with the number of MCA13+ trees increasing by 19 trees between 2015 and 2018. MCA13- isolates were more randomly distributed, suggesting primary spread, whereas MCA13+ CTV isolates were more aggregated, suggesting some secondary spread. These results suggest that spread of MCA13+ isolates was limited by a combination of tree removal and aphid vector suppression. MCA13+ samples were VT isolates with some mixtures with T30 isolates. Despite the presence of VT isolates, all CTV-infected trees were asymptomatic
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| 650 |
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4 |
|a Journal Article
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| 650 |
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4 |
|a disease management epidemiology
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| 650 |
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4 |
|a eradication
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| 650 |
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4 |
|a fruit
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| 650 |
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4 |
|a genetic diversity
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| 650 |
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4 |
|a genotype
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| 650 |
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4 |
|a tree fruits
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| 650 |
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4 |
|a viruses and viroids
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| 700 |
1 |
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|a Sisterson, Mark S
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hajeri, Subhas
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Plant disease
|d 1997
|g 104(2020), 7 vom: 16. Juli, Seite 1925-1931
|w (DE-627)NLM098181742
|x 0191-2917
|7 nnns
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| 773 |
1 |
8 |
|g volume:104
|g year:2020
|g number:7
|g day:16
|g month:07
|g pages:1925-1931
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| 856 |
4 |
0 |
|u http://dx.doi.org/10.1094/PDIS-08-19-1791-RE
|3 Volltext
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