Abstract
Corn seedling volatiles collected cryogenically are highly attractive to western corn rootworm larvae,Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae), in a laboratory bioassay. Carbon dioxide is known as an attractant for western corn rootworm larvae, and the amount of carbon dioxide in the cryogenic collections was measured with an infrared gas analyzer. In a choice test between a source containing carbon dioxide alone and a source containing corn seedling volatiles with an equal amount of carbon dioxide (verified by infrared gas analysis), western corn rootworm larvae chose the corn volatile source significantly more often than the side with carbon dioxide alone. This indicates that carbon dioxide is only one of the volatiles from corn seedlings that is behaviorally important and that other compounds of behavioral importance are present as well.
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Hibbard, B.E., Bjostad, L.B. Behavioral responses of western corn rootworm larvae to volatile semiochemicals from corn seedlings. J Chem Ecol 14, 1523–1539 (1988). https://doi.org/10.1007/BF01012424
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DOI: https://doi.org/10.1007/BF01012424