Highlights in the development of the International Organization for Biological Control of noxious animals and plants

  title={Highlights in the development of the International Organization for Biological Control of noxious animals and plants},
  author={Jost M. Franz},
  • J. Franz
  • Published 1 June 1988
  • Biology
  • Entomophaga
8 Citations
Comparison of oviposition behavior of a solitary and a gregarious parasitoid (Hymenoptera: Mymaridae)
Virgin females of both species, although capable of producing only males, exhibited both behaviors, and an important overlap in duration prevents using these differences to sex the progeny at oviposition.
Effect of low temperature exposure on oviposition behaviour and patch exploitation strategy in parasitic wasps
Low-temperature exposure affected the reproductive success, expression of learning, host discrimination ability and patch-leaving decision rules of the parasitic wasps, and the implications of these effects on the pattern of patch exploitation for biological control and field situations are discussed.
Optimal patch time allocation for time-limited foragers
It is found that, for time-limited foragers, optimal patch residence times should be greater than those predicted from the classic, static MVT, and the deviation should increase when foragers are approaching the end of their life.
Patch exploitation strategy by an egg parasitoid in constant or variable environment
The foraging behaviour of an egg parasitoid, Anaphes victus, was analysed in environments containing either patches of constant quality or patches of variable quality in order to determine the motivational mechanisms used in patch‐leaving strategies.
Density dependence of Anaphes sordidatus (Hymenoptera: Mymaridae) parasitism on eggs of Listronotus oregonensis (Coleoptera: Curculionidae)
A positive temporal density-dependent relationship was observed each year between parasitism rates and host densities and a positive density dependence occurred in early and mid-summer for earlysown carrots where host density reached 1–2 host eggs per plant but disappeared in late summer when host density decreased while parasitism remained high.
Genotypic and kin discrimination in a solitary Hymenopterous parasitoid: Implications for speciation
There is a polymorphic genetic component in host discrimination and that such a preference could induce a reduction in gene flow between populations, suggesting that this discrimination system shares many analogies with the complex system of communication of social Hymenoptera.
Intra- and interspecific host discrimination in two closely related egg parasitoids
Intraspecific host discrimination is frequently found in solitary parasitoids, but interspecific host discrimination, where female parasitoids recognize hosts already parasitized by females of other
Intraspecific hyperparasitism in a primary hymenopteran parasitoid
This type of facultative intraspecific hyperparasitism is different from autoparasitism in Aphelinidae and has never been mentioned in other parasitoids; it would be adaptive if females of this short-lived species encounter low-quality patches.


La Commission internationale de lutte biologique contre les ennemis des cultures (C.I.L.B.)
Lors du VI I I e Congr~s international d'entomologie qui s 'est tenu Stockholm en juillet 1948, un certain nombre de sp6cialistes de la lutte biologique contre Ies ennemis des cultures se sont r6unis
La commission internationale de lutte biologique, son organisation, son fonctionnement, son rôle dans le développement de la taxonomie des insectes
In the field of taxonomy, the activities of the C.I.L.B., which is an organ of coordination and communication that joins the efforts of the national services with regard to better results in the biological control of insect pests, have led to the foundation of anEntomophage Identification Center, with its seat at the Museum of Geneva.