Akademik Veri Yönetim Sistemi
The 10th International Mediterranean Symposium on Medicinal and Aromatic Plants April 25-27, 2024. İstanbul - TÜRKİYE., İstanbul, Türkiye, 25 - 27 Nisan 2024, ss.227-235
Silverleaf whitefly (Bemisia tabaci (Gennadius), (Hemiptera: Aleyrodidae)) is an important pest of crops worldwide. It is among the most harmful species, especially in subtropical and tropical regions. Chemical control methods are commonly used in the control against this very significant pest. However, essential oils, composed of various components, can act against insect pests through complex mechanisms. This study investigated the behavioral preferences of silverleaf whiteflies on basil genotypes with different main components, including eucalyptol, estragole, geraniol, methyleugenol, methyl cinnamate, citral, and linalool based on the completely randomized design. In the genotypes, during the initial observation on July 2, 2022, the density of silverleaf whiteflies recorded was 12.58 individuals per leaf, whereas in the subsequent observation on July 19, 2022, the density decreased to 4.66 individuals per leaf. Across both observations, the highest mean number of silverleaf whiteflies per leaf was found in genotype PI 172998 (Estragole chemotype) with a mean observation of 20.08 individuals, while the lowest mean was in genotype PI 652070 (Linalol - Estragole chemotype) with a mean observation of 1.43 individuals. Since the linalool-methyleugenol and linalool-estragole chemotypes exhibited the lowest frequency of occurrence in both sets of observations, it is advisable to investigate the potential of these components as insect repellents. Furthermore, since the estragole, linalool–eucalyptol, and citral–neral chemotypes appeared most frequently in both observation groups, it is recommended to investigate the potential of these compounds as insect attractants. This study highlights the varying behavioral responses of silverleaf whiteflies to distinct basil chemotypes, offering valuable insights for pest management approaches.