title: Volatile food attractants forOryzaephilus surinamensis (L.) from oats.
abstract: The sawtoothed grain beetle,Oryzaephilus surinamensis (L.) (Coleoptera: Cucujidae), is attracted to certain volatile components that occur in whole and rolled oats as determined by a laboratory pitfall chamber bioassay. More than 100 components were detected in the attractive carbonyl-containing fractions; 14 of these, making up 60% of the total, were identified and bioassayed. Although hexanal, heptanal, octanal, (E)-2-heptenal, and 2-furaldehyde, at doses ranging variously from 1 to 100 μg, were all significantly attractive, only 1 /10 to 1 /100 as much (E)-2-nonenal or (E,E)-2,4-nonadienal was necessary to produce comparable insect response. In addition, propanal and formaldehyde (previously reported in oats but not detected by us) were bioassayed and found to be attractive.
authors: U.S. Department of Agriculture, Northern Regional Research Center Agricultural Research Service, 61604, Peoria, Illinois.
authors: K L
authors: KL
authors: Mikolajczak
authors: B W
authors: BW
authors: Zilkowski
authors: C R
authors: CR
authors: Smith
authors: W E
authors: WE
authors: Burkholder