Predation rates, survivorship and development ofPodisus maculiventris (Het.: Pentatomidae) on larvae ofLeptinotarsa decemlineata (Col.: Chrysomelidae) andPieris brassicae (Lep.: Pieridae), under field conditions D. C. StamopoulosA. Chloridis OriginalPaper Pages: 3 - 9
Incidences de chocs de températures élevées sur la lignée germinale mâle deTrichogramma brassicae (Hym.: Trichogrammatidae) J. ChihraneG. Laugé OriginalPaper Pages: 11 - 20
Relationships betweenApanteles flavipes (Hym.: Braconidae) andNosema bordati (Microspora,Nosematidae) parasites ofChilo partellus (Lep.: Pyralidae) D. BordatA. E. GoudegnonG. Bouix OriginalPaper Pages: 21 - 32
Bionomics of a polyphagous predator:Orius laevigatus (Het.: Anthocoridae) C. AlauzetD. DargagnonJ. C. Malausa OriginalPaper Pages: 33 - 40
Parasitism of the apple maggot,Rhagoletis pomonella, infesting hawthorns in Washington L. J. GutJ. F. Brunner OriginalPaper Pages: 41 - 49
Observations on the reproductive biology of two parasites ofHylesinus varius andPhloeotribus scarabaeoides (Col: Scolytidae): Cheiropachus quadrum (Hym: Pteromalidae) andDendrosoter protuberans (Hym: Braconidae) M. CamposC. Lozano OriginalPaper Pages: 51 - 59
Effects ofBacillus thuringiensis var.San diego on predation effectiveness, development and mortality ofColeomegilla maculata lengi (Col.: Coccinellidae) larvae S. GirouxD. CoderreJ. -C. Côté OriginalPaper Pages: 61 - 69
Conservation of two predator species for biological control ofChrysophtharta bimaculata (Col.: Chrysomelidae) in tasmanian forests R. K. MensahJ. L. Madden OriginalPaper Pages: 71 - 83
Larval morphology and development of the parasitoidDacnusa sibirica [Hym.: Braconidae] in the leafminer hostChromatomyia syngenesiae P. CroftM. J. W. Copland OriginalPaper Pages: 85 - 93
The effect of dung beetle activity on the discharge ofPilobolus (Fungi, mucorales) sporangia in cattle, sheep and horse faeces R. P. J. BigganeM. J. Gormally OriginalPaper Pages: 95 - 98
Paragus hyalopteri n. sp. an aphidophagous hoverfly (Dipt.: Syrphidae) attacking the mealy plum aphid (Hom.: Aphididae) Ma A. Marcos-GarciaS. Rojo OriginalPaper Pages: 99 - 106
Results of the sixth joint pesticide testing programme of the IOBC/WPRS-working group «pesticides and beneficial organisms» S. A. HassanF. BiglerH. Vogt OriginalPaper Pages: 107 - 119