Chemical espionage by parasitic wasps : how Trichogramma species exploit moth sex pheromone systems

L.P.J.J. Noldus

Research output: Thesisinternal PhD, WU

Abstract

<p>Interactions between insects are for a great deal mediated by semiochemicals. For instance, female moths release specific volatile chemicals in order to attract males of the same species. These substances are called sex pheromones. Egg parasitoids use various chemical cues in their search for hosts, including substances originating from the host insect. Such chemicals, of which the function is advantageous for the receiver but not for the emitter, are called kairomones. The terms pheromone and kairomone are not attached to substances themselves but to functions of substances. One and the same substance may thus function as a sex pheromone in one context and as a kairomone in a different context. This dissertation deals with egg parasitoids that use moth sex pheromones as kairomones and thus exploit their host's chemical communication system. In other words, they commit chemical espionage.</p><p>In the research described here, the phenomenon of chemical espionage has been studied in two systems, each consisting of a moth and its egg parasitoid. The first includes the cabbage moth, <em>Mamestra brassicae</em> , a common pest on cabbage and other vegetables, and the parasitic wasp <em>Trichogramma evanescens</em> . These are common species in Europe and temperate Asia. The second is an American system, namely <em>Heliothis zea</em> , a moth with common names related to the crops on which it is a pest (e.g. cotton bollworm, corn earworm or tomato fruitworm), and its parasitoid <em>Trichogramma pretiosum</em> . <em>Trichogramma</em> species are the most widely used insects for biological control of insect pests in the world, with areas of application totalling several millions of hectares.</p>
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
Supervisors/Advisors
  • van Lenteren, Joop, Promotor
Award date13 Oct 1989
Place of PublicationS.l.
Publisher
Print ISBNs9789072620026
Publication statusPublished - 1989

Fingerprint

kairomones
Trichogramma
sex pheromones
moths
Helicoverpa zea
Mamestra brassicae
insects
parasitoids
Trichogramma evanescens
pests
Trichogramma pretiosum
semiochemicals
common names
communications technology
Helicoverpa armigera
cabbage
volatile compounds
pheromones
insect pests
biological control

Keywords

  • chalcididae
  • eulophidae
  • trichogrammatidae
  • biological control
  • insects
  • beneficial insects
  • noctuidae
  • plant protection
  • pheromones
  • attractants
  • trichogramma
  • heliothis

Cite this

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title = "Chemical espionage by parasitic wasps : how Trichogramma species exploit moth sex pheromone systems",
abstract = "Interactions between insects are for a great deal mediated by semiochemicals. For instance, female moths release specific volatile chemicals in order to attract males of the same species. These substances are called sex pheromones. Egg parasitoids use various chemical cues in their search for hosts, including substances originating from the host insect. Such chemicals, of which the function is advantageous for the receiver but not for the emitter, are called kairomones. The terms pheromone and kairomone are not attached to substances themselves but to functions of substances. One and the same substance may thus function as a sex pheromone in one context and as a kairomone in a different context. This dissertation deals with egg parasitoids that use moth sex pheromones as kairomones and thus exploit their host's chemical communication system. In other words, they commit chemical espionage.In the research described here, the phenomenon of chemical espionage has been studied in two systems, each consisting of a moth and its egg parasitoid. The first includes the cabbage moth, Mamestra brassicae , a common pest on cabbage and other vegetables, and the parasitic wasp Trichogramma evanescens . These are common species in Europe and temperate Asia. The second is an American system, namely Heliothis zea , a moth with common names related to the crops on which it is a pest (e.g. cotton bollworm, corn earworm or tomato fruitworm), and its parasitoid Trichogramma pretiosum . Trichogramma species are the most widely used insects for biological control of insect pests in the world, with areas of application totalling several millions of hectares.",
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author = "L.P.J.J. Noldus",
note = "WU thesis 1303 Proefschrift Wageningen",
year = "1989",
language = "English",
isbn = "9789072620026",
publisher = "Noldus",

}

Chemical espionage by parasitic wasps : how Trichogramma species exploit moth sex pheromone systems. / Noldus, L.P.J.J.

S.l. : Noldus, 1989. 252 p.

Research output: Thesisinternal PhD, WU

TY - THES

T1 - Chemical espionage by parasitic wasps : how Trichogramma species exploit moth sex pheromone systems

AU - Noldus, L.P.J.J.

N1 - WU thesis 1303 Proefschrift Wageningen

PY - 1989

Y1 - 1989

N2 - Interactions between insects are for a great deal mediated by semiochemicals. For instance, female moths release specific volatile chemicals in order to attract males of the same species. These substances are called sex pheromones. Egg parasitoids use various chemical cues in their search for hosts, including substances originating from the host insect. Such chemicals, of which the function is advantageous for the receiver but not for the emitter, are called kairomones. The terms pheromone and kairomone are not attached to substances themselves but to functions of substances. One and the same substance may thus function as a sex pheromone in one context and as a kairomone in a different context. This dissertation deals with egg parasitoids that use moth sex pheromones as kairomones and thus exploit their host's chemical communication system. In other words, they commit chemical espionage.In the research described here, the phenomenon of chemical espionage has been studied in two systems, each consisting of a moth and its egg parasitoid. The first includes the cabbage moth, Mamestra brassicae , a common pest on cabbage and other vegetables, and the parasitic wasp Trichogramma evanescens . These are common species in Europe and temperate Asia. The second is an American system, namely Heliothis zea , a moth with common names related to the crops on which it is a pest (e.g. cotton bollworm, corn earworm or tomato fruitworm), and its parasitoid Trichogramma pretiosum . Trichogramma species are the most widely used insects for biological control of insect pests in the world, with areas of application totalling several millions of hectares.

AB - Interactions between insects are for a great deal mediated by semiochemicals. For instance, female moths release specific volatile chemicals in order to attract males of the same species. These substances are called sex pheromones. Egg parasitoids use various chemical cues in their search for hosts, including substances originating from the host insect. Such chemicals, of which the function is advantageous for the receiver but not for the emitter, are called kairomones. The terms pheromone and kairomone are not attached to substances themselves but to functions of substances. One and the same substance may thus function as a sex pheromone in one context and as a kairomone in a different context. This dissertation deals with egg parasitoids that use moth sex pheromones as kairomones and thus exploit their host's chemical communication system. In other words, they commit chemical espionage.In the research described here, the phenomenon of chemical espionage has been studied in two systems, each consisting of a moth and its egg parasitoid. The first includes the cabbage moth, Mamestra brassicae , a common pest on cabbage and other vegetables, and the parasitic wasp Trichogramma evanescens . These are common species in Europe and temperate Asia. The second is an American system, namely Heliothis zea , a moth with common names related to the crops on which it is a pest (e.g. cotton bollworm, corn earworm or tomato fruitworm), and its parasitoid Trichogramma pretiosum . Trichogramma species are the most widely used insects for biological control of insect pests in the world, with areas of application totalling several millions of hectares.

KW - chalcididae

KW - eulophidae

KW - trichogrammatidae

KW - biologische bestrijding

KW - insecten

KW - nuttige insecten

KW - noctuidae

KW - gewasbescherming

KW - feromonen

KW - lokstoffen

KW - trichogramma

KW - heliothis

KW - chalcididae

KW - eulophidae

KW - trichogrammatidae

KW - biological control

KW - insects

KW - beneficial insects

KW - noctuidae

KW - plant protection

KW - pheromones

KW - attractants

KW - trichogramma

KW - heliothis

M3 - internal PhD, WU

SN - 9789072620026

PB - Noldus

CY - S.l.

ER -