High Value-Added Application of Natural Products in Crop Protection: Discovery and Exploration of Caffeoyl and Flavonoid Derivatives from DC. as Novel Insecticide Candidates.

Nine caffeoyl derivatives (), including two new dicaffeoyl glycosides, brevicaudatosides A and B ( and ), and six flavonoids (), were identified from overground DC. Compounds and exhibited significant oral toxicities against Harris with LC (half-lethal concentration) values of 0.12 and 0.

Discovery of New Botanical Insecticides: Identification and Insecticidal Activity of Saponins from Maxim and Insights into the Stress Response of Harris.

To discover new botanical products-based insecticide candidates, 14 triterpenoid saponins (-) including four new ones, obscurosides A-D (-), were isolated from Maxim as potential agrochemicals against Harris and (L.). Compounds - were characterized by a rare ribose substitution at C-3, and was a bidesmoside glycosylated at the rare C-23 and C-28 positions of the oleanane aglycone.