TY  - JOUR
AU  - Radonjić, A
AU  - Jovičić, I
AU  - Lalićević, Ivana
AU  - Petrović-Obradović, O.
PY  - 2023
UR  - https://intam.institut-tamis.rs/handle/123456789/237
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 University Press
T2  - Bulletin of Entomological Research
T1  - Factors affecting host plant selection in alfalfa aphids
VL  - 10
DO  - 10.1017/S0007485323000093
UR  - conv_205
ER  - 

@article{
author = "Radonjić, A and Jovičić, I and Lalićević, Ivana and Petrović-Obradović, O.",
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 University Press",
journal = "Bulletin of Entomological Research",
title = "Factors affecting host plant selection in alfalfa aphids",
volume = "10",
doi = "10.1017/S0007485323000093",
url = "conv_205"
}

Radonjić, A., Jovičić, I., Lalićević, I.,& Petrović-Obradović, O.. (2023). Factors affecting host plant selection in alfalfa aphids. in Bulletin of Entomological Research
Cambridge University Press., 10.
https://doi.org/10.1017/S0007485323000093
conv_205

Radonjić A, Jovičić I, Lalićević I, Petrović-Obradović O. Factors affecting host plant selection in alfalfa aphids. in Bulletin of Entomological Research. 2023;10.
doi:10.1017/S0007485323000093
conv_205 .

Radonjić, A, Jovičić, I, Lalićević, Ivana, Petrović-Obradović, O., "Factors affecting host plant selection in alfalfa aphids" in Bulletin of Entomological Research, 10 (2023),
https://doi.org/10.1017/S0007485323000093 .,
conv_205 .