A series of 3-acyl-4-hydroxycoumarins, structurally related to dicoumarol, as well as several alfalfa constituents including coumestrol were tested for their feeding deterrency towards the pea aphid. Feeding deterrency of the 3-acyl-4-hydroxycoumarins decreased as the size of the 3-acyl group increased.
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http://dx.doi.org/10.1007/BF01020171 | DOI Listing |
J Chem Ecol
January 2025
Graduate School of Integrated Sciences for Life, Hiroshima University, Higashihiroshima, 739-8528, Japan.
Eurema mandarina is a pierid butterfly that primarily feeds on plants in the family Fabaceae. In mainland Japan, adult females preferentially lay eggs on Albizia julibrissin and Lespedeza cuneata. In the field, females may oviposit on non-fabaceous plants, although rarely.
View Article and Find Full Text PDFInsects
December 2024
Biological Control of Pests Research Unit, Agricultural Research Service, United States Department of Agriculture, Stoneville, MS 38776, USA.
Flavonoids have multiple functions, including host-plant defense against attacks from herbivorous insects. This manuscript reviewed and analyzed the scientific literature to test the hypothesis that flavonoids can be utilized to manage pests without causing significant harm to beneficials. The methodology involved using recognized literature databases, e.
View Article and Find Full Text PDFMolecules
December 2024
Department of Botany and Ecology, University of Zielona Góra, Szafrana 1, 65-516 Zielona Góra, Poland.
(1) Background: Genistein is a naturally occurring flavonoid with a rich spectrum of biological activities, including plant-herbivore interactions. The aim of the study was to evaluate the effect of exogenous application of genistein on aphid behavior during probing in plant tissues. (2) Methods: , ssp.
View Article and Find Full Text PDFSci Total Environ
January 2025
National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, College of Resource, Hunan Agricultural University, Hunan 410128, China. Electronic address:
Rice may absorb Cadmium (Cd) from the air through its leaves. The process of Cd foliar absorption, accumulation, and redistribution is yet unknown, nevertheless. In this study, the process of Cd absorption from rice leaves and its accumulation and redistribution during all stages of the rice plant's growth were examined.
View Article and Find Full Text PDFHeliyon
December 2024
Center for Physiology and Pharmacology, Medical University of Vienna, 1090, Vienna, Austria.
Currently, there is a growing preference for eco-friendly bioinsecticides over chemical insecticides due to their safety. Plant extracts have emerged as a promising solution for this purpose. Therefore, this study aimed to evaluate the insecticidal effectiveness of extract against two key pests of rose aphid () and pistachio psylla ().
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