Les substances végétales non volatiles et leur effet phagostimulant sur les larves de cinquième stade de la teigne du poireau, Acrolepiopsis assectella (Lep.)

AI-Rouz, H.; Thibout, É.

doi:10.1051/rnd:19890204

Cited by 7 publications

(3 citation statements)

References 11 publications

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“…This preference could be related to the increase in the concentration of alk(en)yl-cysteine sulphoxides in the leaves of damaged plants (Dugravot et al, 2005). A previous study showed that propyl-cysteine sulphoxide not only has a particularly stimulating effect on the feeding activity of leek moth larvae (Al-Rouz & Thibout, 1989), but also is implicated in triggering egg-laying .…”

Section: Discussionmentioning

confidence: 97%

Consequences for a specialist insect and its parasitoid of the response of Allium porrum to conspecific herbivore attack

Dugravot

Thibout

2006

Physiological Entomology

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Abstract. Recent studies on the leek Allium porrum L. demonstrate that a sharp increase in the release of volatile and nonvolatile sulphur compounds occurs in response to attack by the specialist phytophage, the leek moth Acrolepiopsis assectella (Zeller). The consequences of that response on the developmental capacity and behaviour of the leek moth and on the host‐searching behaviour of the parasitoid hymenoptera Diadromus pulchellus Wesmael have been studied. No immediate adverse effect on larval development is seen, but the duration of male development is significantly longer. In addition, an almost 20% decrease is observed in the number of oocytes produced by adult females that developed on attack‐damaged leek plants. Leek moths do not avoid damaged plants systematically. On attacked plants, larvae tend to consume more and females to lay more eggs, although the latter tendency disappears after intensive attack. Concerning host‐searching by D. pulchellus, the data indicate that females make use of the induced leek response. Parasitoids are attracted more strongly to attacked plants than to undamaged plants and mechanically damaged plants. The results of this study in a tritrophic system involving a biannual plant suggest a complex defence system combining direct and indirect mechanisms. Sulphur compounds may act by reducing second‐generation pests, thereby preventing the specialist insect population from exploding at the expense of the leek.

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Section: Discussionmentioning

confidence: 97%

Consequences for a specialist insect and its parasitoid of the response of Allium porrum to conspecific herbivore attack

Dugravot

Thibout

2006

Physiological Entomology

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“…Chemical cues from the host plant, different from those that attract adults, stimulate feeding by the leek moth larvae (Al Rouz and Thibout 1989). Fifth instar larvae show a strong preference to low concentrations of disulphides and high concentrations of thiosulphinates, while first instar larvae show a preference for low concentrations of both (Al Rouz and Thibout 1988).…”

Section: Discussionmentioning

confidence: 99%

Oviposition and feeding preference of Acrolepiopsis assectella Zell. (Lep., Acrolepiidae)

Allison

Jenner

Cappuccino

et al. 2007

J Applied Entomology

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The leek moth, Acrolepiopsis assectella (Zell.), is a recently discovered exotic species in eastern Ontario and western Quebec. This Allium spp. (Asparagales, Alliaceae) specialist can cause up to 40% crop damage. A no-choice experiment was used to determine the relationship between oviposition behaviour and larval survival of the leek moth as the phylogenetic distance from the preferred host Allium ampeloprasum var. porrum L. increased. Results indicate that oviposition preference and larval survival of the leek moth declined as the phylogenetic distance from the preferred host increased. These results support the conclusion that the leek moth is a specialist feeder on closely related Allium spp. although the strength of this preference may decline as the motivation to oviposit increases. This may indicate that the leek moth is able to use closely related novel hosts as temporary refuges if the preferred host plant is unavailable.

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“…The properties of the sulfur volatiles can be used to control insect populations friendly to the environment. (Auger et Thibout, 1983 ;Lecomte et a/., 1987 ;Thibout eta/., 1988 ;AI Rouz et Thibout, 1989).…”

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confidence: 96%

Composés soufrés besAlliumet lutte contre les insectes

Thibout¹,

Auger²

1997

Acta Botanica Gallica

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Resume.-Les composes soufres emis par les Allium attirent les insectes dont le developpement est lie a Ia presence de ces plantes. Ces composes peuvent etre per,.:us par d'autres organismes vivant ou non habituellement dans cette biocenose et avoir sur eux des effets negatifs. Plusieurs etudes ont montre que des Allium ou leurs extraits etaient actifs sur divers insectes, en particulier certains hematophages, mais aussi des phytophages nuisibles. Les connaissances actuelles sur les emissions odorantes specifiques des Allium sont resumees de fa,.:on a selectionner les composes mis en jeu. Deux categories d'actions ont ete etudiees, d'une part celles ayant des repercussions au niveau comportemental comme par exemple Ia repulsion et l'antiappetence, d'autre part celles ayant des consequences physiologiques comme par exemple les effets sur le developpement ou encore les effets insecticides. Ces diverses proprietes des substances soufrees des Allium peuvent eire mises a profit pour Iutter contre les insectes dans le respect de l'environnement.Summary.-Sulfur volatiles emitted by Allium plants attract the insects which develop in contact with these plants. But the sulfur volatiles can be perceived by other organism living in the vicinity or far from this biocenose and can have negative effects on them. Several works have shown that Allium or extracts were active on many insects. The present knowledges on odour emission of Allium were then summarized to search the active compounds. Two kinds of actions were shown. The first one was the behavioural consequences like repulsion and antiappetence. The second one was the physiological consequences like the effects on development and the insecticidal effects. Many insect species were concerned among predators, parasitoids, hematophages, specialist and generalist phytophages, follivores and seminivores. The properties of the sulfur volatiles can be used to control insect populations friendly to the environment.

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Les substances végétales non volatiles et leur effet phagostimulant sur les larves de cinquième stade de la teigne du poireau, Acrolepiopsis assectella (Lep.)

Abstract: (reçu le 21-7-1988, accepté le 14-12-1988)

Cited by 7 publications

References 11 publications

Consequences for a specialist insect and its parasitoid of the response of Allium porrum to conspecific herbivore attack

Consequences for a specialist insect and its parasitoid of the response of Allium porrum to conspecific herbivore attack

Oviposition and feeding preference of Acrolepiopsis assectella Zell. (Lep., Acrolepiidae)

Composés soufrés besAlliumet lutte contre les insectes

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