Evaluation of combinations of flower odor compounds in the field revealed several compounds that were attractive or co-attractive with phenylacetaldehyde (PAA) to pest noctuid moths. A number of moth species responded positively to the key floral odorant PAA. The floral odorants cis-jasmone, linalool, benzyl acetate, limonene, β-myrcene, methyl salicylate, and methyl 2-methoxybenzoate all increased captures of some moths when added to traps with PAA, but responses varied among the moth species that were trapped. For example, soybean looper moths most strongly responded to PAA + β-myrcene, but benzyl acetate, cis-jasmone, and limonene also increased captures of these moths when these compounds were used in traps along with PAA. Overall, PAA + β-myrcene appeared to be the strongest floral compound combination for pest species trapped, compared to PAA or other compound blends.
