Transmission of Citrus Tristeza Virus by Aphids (Homoptera, Aphididae) in Spain
Transmission of citrus tristeza virus (CTV) by aphids was tried with two Spanish CTV isolates, T-300 and T-308. Isolate T-300 causes mild symptoms on Mexican Lime and is very widespread, while T-308 is very severe on Mexican Lime and has a limited distribution. Transmission of the two isolates was t...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Objeto de conferencia |
| Language: | Inglés |
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IOCV
2021
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11939/7697 https://iocv.ucr.edu/sites/g/files/rcwecm4696/files/2020-06/9th023_027.pdf |
| Summary: | Transmission of citrus tristeza virus (CTV) by aphids was tried with two Spanish CTV isolates, T-300 and T-308. Isolate T-300 causes mild symptoms on Mexican Lime and is very widespread, while T-308 is very severe on Mexican Lime and has a limited distribution. Transmission of the two isolates was tried using 200 aphids/plant of the most important aphid species found on citrus in Spain: Aphis citricola, Toxoptera aurantii, Myxus persicae, Aphis gossypii, Aphis fabae and Aphis craccivora. Two other aphid
species, Aphis nerii and Hyalopterus pruni were tested, only with the T-300 isolate. Isolate T-308 was transmitted only by A. gossypii with an efficiency of 28%, whereas the isolate T-300 was transmitted by A. gossypii (78%), by A. citricola (6%) and by T. aurantii (6%). |
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