PLoS ONE (2019) 14 (3 - e0205475)

From Pestinfo-Wiki
Jump to: navigation, search

Paul Amouroux, Didier Crochard, Margarita Correa, Géraldine Groussier, Philippe Kreiter, Carola Roman, Emilio Guerrieri, Antonio Garonna, Thibaut Malausa and Tania Zaviezo (2019)
Natural enemies of armored scales (Hemiptera: Diaspididae) and soft scales (Hemiptera: Coccidae) in Chile: Molecular and morphological identification
PLoS ONE 14 (3 - e0205475)
Abstract: Scale insects (Hemiptera: Sternorrhyncha: Coccomorpha) are key pests of agricultural crops and ornamental plants worldwide. Their populations are difficult to control, even with insecticides, due to their cryptic habits. Moreover, there is growing concern over the use of synthetic pesticides for their control, due to deleterious environmental effects and the emergence of resistant populations of target pests. In this context, biological control may be an effective and sustainable approach. Hymenoptera Chalcidoidea includes natural enemies of scale insects that have been successfully used in many biological control programs. However, the correct identification of pest scale species and their natural enemies is particularly challenging because these insects are very small and highly specialized. Integrative taxonomy, coupling DNA barcoding and morphological analysis, has been successfully used to characterize pests and natural enemy species. In this study, we performed a survey of parasitoids and predators of armored and soft scales in Chile, based on 28S and COI barcodes. Fifty-three populations of Diaspididae and 79 populations of Coccidae were sampled over the entire length of the country, from Arica (18°S) to Frutillar (41°S), between January 2015 and February 2016. The phylogenetic relationships obtained by Bayesian inference from multilocus haplotypes revealed 41 putative species of Chalcidoidea, five Coccinellidae and three Neuroptera. Species delimitation was confirmed using ABGD, GMYC and PTP model. In Chalcidoidea, 23 species were identified morphologically, resulting in new COI barcodes for 12 species and new 28S barcodes for 14 species. Two predator species (Rhyzobius lophantae and Coccidophilus transandinus) were identified morphologically, and two parasitoid species, Chartocerus niger and Signiphora bifasciata, were recorded for the first time in Chile.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Full text of article
Database assignments for author(s): Paul Amouroux, Philippe Kreiter, Emilio Guerrieri, Tania Zaviezo

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

Pest and/or beneficial records:

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

Saissetia oleae Chile (continental)
Aspidiotus nerii Chile (continental)
Lepidosaphes beckii Chile (continental)
Hemiberlesia lataniae Chile (continental)
Metaphycus helvolus (parasitoid) Saissetia oleae Chile (continental)
Rhyzobius lophanthae (predator) Chile (continental)
Scutellista caerulea (parasitoid) Saissetia oleae Chile (continental)
Metaphycus flavus (parasitoid) Saissetia oleae Chile (continental)
Metaphycus stanleyi (parasitoid) Saissetia oleae Chile (continental)
Metaphycus anneckei (parasitoid) Saissetia oleae Chile (continental)
Aphytis chilensis (parasitoid) Aspidiotus nerii Chile (continental)
Aphytis lepidosaphes (parasitoid) Lepidosaphes beckii Chile (continental)
Metaphycus lounsburyi (parasitoid) Saissetia oleae Chile (continental)
Signiphora flavella (parasitoid) Hemiberlesia lataniae Chile (continental)