Environmental Entomology (2000) 29, 1133-1137

Chris Peterson, Anne Fristad, Rong Tsao and Joel R. Coats (2000)
Osajin and pomiferin, two isoflavones purified from osage orange fruits, tested for repellency to the maize weevil (Coleoptera: Curculionidae)
Environmental Entomology 29 (6), 1133-1137
Abstract: The fruit of the osage orange tree, Maclura pomifera (Raf.) Schneid (Moraceae), has long been thought to be repellent to insects. A preliminary study reported here confirmed repellency of fruit extracts to the maize weevil, Sitophilus zeamais Motschulsky. Two isoflavones, osajin and pomiferin, were isolated from the mature fruit of M. pomifera in high purity (>95%). Testing of purified osajin and pomiferin failed to show repellency. Repellency is likely caused by factors other than isoflavones in the fruit.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Joel R. Coats

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Sitophilus zeamais