Tri-trophic interaction among host plants, aphid species, and coccinella undecimpunctata l. under constant temperature [electronic resource].

Includes reference.

Tri-trophic interaction among host plants, aphid species, and the predator, Coccinella undecimpunctata L. at 28±1c and 70±5% R.H. were studied. The developmental time of immature stages, survival percentage, and consumption of C. undecimpunctata by feeding on Aphis gossypii Glover, Myzus persicae Sulzer and Aphis craccivora Koch that were reared on each of eggplant (Solanum melongena L.), potatoes (Solanum tuberosum L.), and faba bean (Vicia faba L.) plants were determined. In respect of the developmental time of immature stages, the effect of either host plants or the interaction between host plants and aphid species, there were significant variations in the developmental time of larval stage. There was no significant variation for the effect of aphid species alone. Data showed that there were no significant variations for the effect of either host plants or aphid species and the interaction between host plants and aphid species in the survival of immature stages of C. undecimpunctata. Regarding total consumption of larval stage of C. undecimpunctata, there were significant variations for the effect of either host plants or aphid species and the interaction between host plants and aphid species.

Summary in Arabic.

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