Attractiveness of binary blends of floral odorant compounds to moths in Florida, USA

Abstract

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 and pyralid 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, Pseudoplusia includens (Walker) (Lepidoptera: Noctuidae), 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. Velvetbean caterpillar moths, Anticarsia gemmatalis Hübner (Lepidoptera: Noctuidae), responded most strongly to PAA + linalool, but β‐myrcene, cis‐jasmone, and limonene also increased captures of these moths in traps over numbers trapped with PAA. Positive responses to floral compound blends were also noted for golden looper [Argyrogramma verruca (F.)], grass looper [Mocis disseverans (Walker)], tobacco budworm [Heliothis virescens (F.)], southern armyworm [Spodoptera eridania (Stoll) (all Lepidoptera: Noctuidae)], and melonworm [Diaphania hyalinata (L.) (Lepidoptera: Pyralidae)]. Overall, PAA + β‐myrcene appeared to be the strongest floral compound combination for pest species trapped, compared to PAA or other compound blends.

Field evaluation of synthetic kairomonal attractants against major lepidopteran pests of castor

“…(2011) who found significantly higher moth catches of true armyworm, (Lepidoptera: Noctuidae) in traps baited with phenylacetaldehyde + 2-phenylethanole as compared to these chemicals used alone. This also corroborates with the reports of Meagher and Landolt (2008) who reported combination of phenylacetaldehyde + methyl salicylate trapped 76 % higher moth catches of soybean looper, (Lepidoptera: Noctuidae) as compared to phenylacetaldehyde alone. Based on these results, it is postulated that combination of phenylacetaldehyde + 2-phenylethanole has potential to use in monitoring or management of lepidopteran pests of castor by mass trapping or luring and killing approaches.…”

Plant Volatiles Influence Electrophysiological and Behavioral Responses of Lygus hesperus

“…The central role of plant volatiles in insect life history has been exploited to manipulate the behavior of economically important species in monitoring and management programs (Smart et al 1996;Piñero and Prokopy 2003;De Camelo et al 2007;Martel et al 2007). Several monophagous and oligophagous species have shown behavioral responses to single plant compounds (Leskey et al 2001;Coracini et al 2004;Meagher and Landolt 2008), suggesting that this approach deserves consideration when biologically-based pest control strategies are being developed.…”

An improved female-targeted semiochemical lure for the European corn borer Ostrinia nubilalis Hbn.

“…The chemicals tested were selected based on their occurrence in the scents of maize silk (Hammack, 1996) or of flowers visited by pest moths (Haynes et al, 1991;Heath et al, 1992;Landolt and Smithhisler, 2003;Guédot et al, 2008;Landolt et al, 2014) and their performance in past field tests as moth attractants (Landolt et al, 2001(Landolt et al, , 2006(Landolt et al, , 2011Meagher and Landolt, 2008;Tóth et al, 2010). We evaluated chemicals in combination with PAA and in comparison with PAA.…”