Mitteilungen der Schweizerischen Entomologischen Gesellschaft (2000) 73, 5-11

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Alecu Diaconu and Aurel Lozan (2000)
Ectoparasitoid braconids (Hym.: Braconidae) of certain species of leafrollers (Lep. Tortricidae) of fruit trees
Mitteilungen der Schweizerischen Entomologischen Gesellschaft 73 (1-2), 5-11
Abstract: As a result of the rearing of leaf-roller larvae collected from species of Malus, Pyrus, Prunus and Cerasus in several localities situated in the north-eastern part of Romania, between 1992 and 1998, 5 species of braconids have been obtained as larval ectoparasitoids (Bracon hebetor SAY., B. picticornis WESM., B. variator NEES, B. variegator SPIN. and Oncophanes laevigatus RATZB.), belonging to the Braconinae and Doryctinae subfamilies. 16 host-parasitoid relationships have been recorded, most of them new to science. The role played by these parasitoids in the limitation of leaf-roller populations on fruit trees is generally minor, the parasitization ratio being below 1 %. Also, some cases of double parasitism of Bracon picticornis and Oncophanes laevigatus with certain Hymenoptera species of Eulophidae (Colpoclypeus florus WALK., Sympiesis acalle WALK.) or Ichneumonidae (Scambus planatus HARTIG) should be mentioned. The paper also discusses some aspects on the biology, ecology and behaviour of these braconid species.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)


Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
surveys/distribution/isolation


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Archips rosana Romania
Adoxophyes orana Romania
Pandemis heparana Romania
Hedya nubiferana Romania
Spilonota ocellana Romania
Rhopobota naevana Romania
Neosphaleroptera nubilana Romania
Hedya pruniana Romania
Acleris variegana Romania
Ancylis selenana Romania
Habrobracon hebetor (parasitoid) Neosphaleroptera nubilana Romania
Bracon variator (parasitoid) Rhopobota naevana Romania
Bracon variator (parasitoid) Acleris variegana Romania
Bracon picticornis (parasitoid) Adoxophyes orana Romania
Bracon picticornis (parasitoid) Hedya nubiferana Romania
Bracon picticornis (parasitoid) Rhopobota naevana Romania
Bracon picticornis (parasitoid) Hedya pruniana Romania
Bracon variegator (parasitoid) Adoxophyes orana Romania
Bracon variegator (parasitoid) Pandemis heparana Romania
Oncophanes laevigatus (parasitoid) Archips rosana Romania
Oncophanes laevigatus (parasitoid) Adoxophyes orana Romania
Oncophanes laevigatus (parasitoid) Hedya nubiferana Romania
Oncophanes laevigatus (parasitoid) Spilonota ocellana Romania
Oncophanes laevigatus (parasitoid) Rhopobota naevana Romania
Oncophanes laevigatus (parasitoid) Hedya pruniana Romania
Oncophanes laevigatus (parasitoid) Ancylis selenana Romania