Factors affecting host plant selection in alfalfa aphids
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Alfalfa (Medicago sativa L.) hosts several species of aphid, Acyrthosiphon pisum (Harris), Aphis craccivora Koch and Therioaphis trifolii (Monell). The preference of the aphids of alfalfa plants for dense assemblies or individual plants, as well as for healthy or infested plants, was investigated in the field as in the laboratory. Years of field research have revealed the specific preferences of all three species of aphid. A. pisum and T. trifolii are most commonly found in alfalfa crops, while A. craccivora is mostly found on alfalfa weeds. Also, a single species of aphid alone is usually present on a plant. In order to determine the reason for this clear preference and to establish whether at the very beginning, i.e. at the stage of choosing a host, aphid species distance themselves from each other, we tested the effect of the volatiles of healthy and infested plants on their attractiveness to aphids. A. craccivora is repelled by the volatiles of dense crops and plants previously inf...ested with one of the other two species. A. pisum and T. trifolii choose a dense assembly of plants, repelled by the volatiles of plants previously infested with A. craccivora. A. pisum displays the weakest competitive traits, and A. craccivora the strongest. This research showed that competition between aphid species does not occur only when they find themselves on the same plant at the same time, fighting for resources, but also in the choice of plant, in order to avoid later competition.
Keywords:
Acyrthosiphon pisum / alfalfa / aphids / Aphis craccivora / competition / host plant selection / Therioaphis trifoliiSource:
Bulletin of Entomological Research, 2023, 113, 4, 439-448Publisher:
- Cambridge : Cambridge University Press
Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200116 (University of Belgrade, Faculty of Agriculture) (RS-MESTD-inst-2020-200116)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200214 (Institue of Pesticides and Environmental Protection, Belgrade) (RS-MESTD-inst-2020-200214)
DOI: 10.1017/S0007485323000093
ISSN: 0007-4853
WoS: 000952082100001
Scopus: 2-s2.0-85151777740
URI
https://intam.institut-tamis.rs/handle/123456789/237https://enauka.gov.rs/handle/123456789/643628
https://ripest.pesting.org.rs/handle/123456789/588
http://aspace.agrif.bg.ac.rs/handle/123456789/6320
https://plantarum.izbis.bg.ac.rs/handle/123456789/1228
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IZBISTY - JOUR AU - Radonjić, Anđa AU - Jovičić, Ivana AU - Lalićević, Ivana AU - Petrović Obradović, Olivera PY - 2023 UR - https://intam.institut-tamis.rs/handle/123456789/237 UR - https://enauka.gov.rs/handle/123456789/643628 UR - https://ripest.pesting.org.rs/handle/123456789/588 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/6320 UR - https://plantarum.izbis.bg.ac.rs/handle/123456789/1228 AB - Alfalfa (Medicago sativa L.) hosts several species of aphid, Acyrthosiphon pisum (Harris), Aphis craccivora Koch and Therioaphis trifolii (Monell). The preference of the aphids of alfalfa plants for dense assemblies or individual plants, as well as for healthy or infested plants, was investigated in the field as in the laboratory. Years of field research have revealed the specific preferences of all three species of aphid. A. pisum and T. trifolii are most commonly found in alfalfa crops, while A. craccivora is mostly found on alfalfa weeds. Also, a single species of aphid alone is usually present on a plant. In order to determine the reason for this clear preference and to establish whether at the very beginning, i.e. at the stage of choosing a host, aphid species distance themselves from each other, we tested the effect of the volatiles of healthy and infested plants on their attractiveness to aphids. A. craccivora is repelled by the volatiles of dense crops and plants previously infested with one of the other two species. A. pisum and T. trifolii choose a dense assembly of plants, repelled by the volatiles of plants previously infested with A. craccivora. A. pisum displays the weakest competitive traits, and A. craccivora the strongest. This research showed that competition between aphid species does not occur only when they find themselves on the same plant at the same time, fighting for resources, but also in the choice of plant, in order to avoid later competition. PB - Cambridge : Cambridge University Press T2 - Bulletin of Entomological Research T1 - Factors affecting host plant selection in alfalfa aphids EP - 448 IS - 4 SP - 439 VL - 113 DO - 10.1017/S0007485323000093 ER -
@article{ author = "Radonjić, Anđa and Jovičić, Ivana and Lalićević, Ivana and Petrović Obradović, Olivera", year = "2023", abstract = "Alfalfa (Medicago sativa L.) hosts several species of aphid, Acyrthosiphon pisum (Harris), Aphis craccivora Koch and Therioaphis trifolii (Monell). The preference of the aphids of alfalfa plants for dense assemblies or individual plants, as well as for healthy or infested plants, was investigated in the field as in the laboratory. Years of field research have revealed the specific preferences of all three species of aphid. A. pisum and T. trifolii are most commonly found in alfalfa crops, while A. craccivora is mostly found on alfalfa weeds. Also, a single species of aphid alone is usually present on a plant. In order to determine the reason for this clear preference and to establish whether at the very beginning, i.e. at the stage of choosing a host, aphid species distance themselves from each other, we tested the effect of the volatiles of healthy and infested plants on their attractiveness to aphids. A. craccivora is repelled by the volatiles of dense crops and plants previously infested with one of the other two species. A. pisum and T. trifolii choose a dense assembly of plants, repelled by the volatiles of plants previously infested with A. craccivora. A. pisum displays the weakest competitive traits, and A. craccivora the strongest. This research showed that competition between aphid species does not occur only when they find themselves on the same plant at the same time, fighting for resources, but also in the choice of plant, in order to avoid later competition.", publisher = "Cambridge : Cambridge University Press", journal = "Bulletin of Entomological Research", title = "Factors affecting host plant selection in alfalfa aphids", pages = "448-439", number = "4", volume = "113", doi = "10.1017/S0007485323000093" }
Radonjić, A., Jovičić, I., Lalićević, I.,& Petrović Obradović, O.. (2023). Factors affecting host plant selection in alfalfa aphids. in Bulletin of Entomological Research Cambridge : Cambridge University Press., 113(4), 439-448. https://doi.org/10.1017/S0007485323000093
Radonjić A, Jovičić I, Lalićević I, Petrović Obradović O. Factors affecting host plant selection in alfalfa aphids. in Bulletin of Entomological Research. 2023;113(4):439-448. doi:10.1017/S0007485323000093 .
Radonjić, Anđa, Jovičić, Ivana, Lalićević, Ivana, Petrović Obradović, Olivera, "Factors affecting host plant selection in alfalfa aphids" in Bulletin of Entomological Research, 113, no. 4 (2023):439-448, https://doi.org/10.1017/S0007485323000093 . .