Activity of the botanical aphicides 1,5-diphenyl-1-pentanone and 1,5-diphenyl-2-penten-1-one on two species of Aphididnae

• Published in: Pest management science 2001-03, Vol.57 (3), p.307-310
• Main Authors: Ping, Gao, Taiping, Hou, Rong, Gao, Qiu, Cui, Shigui, Liu
• Format: Article
• Language: English
• Subjects: 1,5‐diphenyl‐1‐pentanone; 1,5‐diphenyl‐2‐penten‐1‐one; 5-diphenyl-1-pentanone; 5-diphenyl-2-penten-1-one; Animals; anti-feedant activity; aphicides; aphid; Aphididae; Aphids - drug effects; Aphis gossypii; Biological and medical sciences; Biological Assay; contact activity; Control; Feeding Behavior - drug effects; Fundamental and applied biological sciences. Psychology; Insect Control - methods; Insecticides - chemistry; Insecticides - isolation & purification; Insecticides - toxicity; Integrated pest control; Magnetic Resonance Spectroscopy; Magnoliopsida - chemistry; Molecular Structure; Pentanones - chemistry; Pentanones - isolation & purification; Pentanones - toxicity; Phytopathology. Animal pests. Plant and forest protection; Plant Extracts - isolation & purification; Plant Extracts - toxicity; Protozoa. Invertebrates; Schizaphis graminum; Stellera chamaejasme
• ISSN: 1526-498X; 1526-4998
• DOI: 10.1002/ps.297

1,5‐Diphenyl‐1‐pentanone (A) and 1,5‐diphenyl‐2‐penten‐1‐one (B) are natural products extracted for the first time from Stellera chamaejasme. Laboratory bioassay showed that the two products have strong contact activity and very good anti‐feedant activity against Aphis gossypii and Schizaphis graminum. Both products showed dose‐dependent relationships for both forms of activity against the two aphids, the contact activity of B being about twice that of A. Both products were inferior to methomyl in contact activity but superior in anti‐feedant activity against the two aphids. This is the first report of aphicidal activity in these two compounds, which may represent a new class of aphicide. © 2001 Society of Chemical Industry