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Only two components of the four-component sex lure (Z11-16:aldehyde, Z11-16:acetate, Z11-16:alcohol, and Z9-14:alcohol)for Plutella xylostella were effective in disrupting orientation of male moths to baited traps in small field plots. Both Z11-16:aldehyde and Z11-16:acetate effected disruption but were more effective when combined. The lure components Z11-16:alcohol and Z9-14:alcohol together gave no significant reduction in number of P. xylostella captured when tested alone; nor was the disruptive power of Z11-16: acetate or Z11-16:aldehyde + Z11-16:acetate increased when the two alcohols were added.
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Chisholm et al. (1984) studied this question.
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