Influence of salicylaldehyde and methyl salicylate on post‐landing behaviour of Frankliniella occidentalis Pergande

Abstract

This study investigates behavioural responses of adult western flower thrips (Frankliniella occidentalis Pergande; Thysan., Thripidae) females to direct contact with repellent phenylpropanoid plant compounds (salicylaldehyde and methyl salicylate) applied on bean and cucumber leaves. The residence time of F. occidentalis females until take off was significantly shorter on bean or cucumber leaf discs treated with salicylaldehyde at 1% concentration compared with control leaf discs. A methyl salicylate (1%) treatment of cucumber resulted in shorter time periods until thrips took off the treated leaf discs compared with the control leaf discs. In a choice experiment thrips avoided to settle on a 1% salicylaldehyde treatment of bean and cucumber leaf discs for a maximum of 3 h, on a 1% methyl salicylate treatment for a 5-h period. Within a 24-h period neither the egg-laying nor the feeding activity of F. occidentalis was affected after salicylaldehyde application (0.1%, 1%) on bean or cucumber. In contrast, methyl salicylate (1%) applied on bean and cucumber significantly prevented thrips females from oviposition and reduced the percentage of damaged area caused by their feeding activity for 24 h. As olfactory repellent plant volatiles applied on crop plants may elicit diverse post-landing responses of F. occidentalis, short-and long-term effects should be considered when evaluating the factual applicability of secondary plant compounds in a successful thrips management strategy.

Visual, vibratory, and olfactory cues affect interactions between the red spider mite Tetranychus evansi and its predator Phytoseiulus longipes

“…It has insecticidal properties (Ryan and Byrne 1988;Weaver et al 1991) and as the main component in the headspace of ripe peach fruit (Park et al 2005;ElSayed et al 2014), it is repellent to aphids, mites, and thrips (Koschier et al 2007;Ulland et al 2008;Mallinger et al 2011), Aedes aegypti (Linnaeus), the mosquito vector of Dengue (Dekker et al 2011) and the whitefly Bemisia tabaci (Gennadius) (Delétré et al 2015). It is also an effective pesticide for the control of ticks, fleas, and the Fig.…”

Repellency of Essential Oils to <I>Frankliniella occidentalis</I> (Thysanoptera: Thripidae) as Affected by Type of Oil and Polymer Release

“…Methyl salicylate (found in oil of wintergreen) and salicylaldehyde are among these compounds (Koschier et al 2000, Chermenskaya et al 2001, Koschier et al 2007). Methyl salicylate is a phenylpropanoid compound derived from salicylic acid and is the primary constituent in the oil of wintergreen (Koschier et al 2007). In our study, the source of wintergreen oil tested was G. procumbens, a plant commonly known as eastern teaberry or American wintergreen.…”

The behavioral response of the predatory bug Orius laevigatus Fieber (Heteroptera, Anthocoridae) to synthetic volatiles

“…It is known that this compound can have repellent and deterrent effects on the phytophages. Application of this compound on bean or cucumber leaves decreased the time spent by adult western flower thrips on the lamina, reduced the number of eggs laid and the degree of damage (Koschier et al, 2007). The abundance of planthoppers, phytophagous mites, and aphids decreased considerably in the vineyard plots with methyl salicylate dispensers (Hardie et al, 1994;Mallinger et al, 2011).…”