The Experts below are selected from a list of 2433 Experts worldwide ranked by ideXlab platform

Jorg Romeis - One of the best experts on this subject based on the ideXlab platform.

Mario Porcel - One of the best experts on this subject based on the ideXlab platform.

  • using flower strips to promote green lacewings to control cabbage insect pests
    Journal of Pest Science, 2021
    Co-Authors: Rafael Alcalá Herrera, Belen Cotes, Nuria Agusti, Marco Tasin, Mario Porcel
    Abstract:

    Habitat management improves biological control by increasing the abundance and fitness of natural enemies through the provision of floral resources along field edges or between crops. Among the natural enemies reliant on flower resources, green lacewings often stand out due to their abundance, predation capacity and polyphagy. We evaluated the impact of tailored flower strips on the enhancement of natural enemies, especially green lacewings, in three organic cabbage (Brassica oleracea) farms in Southern Sweden. Insects were sampled from the flower strips, and cabbage pests and predators were visually recorded in the crop. In a laboratory assay, the pollen feeding preferences of Chrysoperla carnea (Stephens, 1836) were evaluated in a dual-choice test. The pollen consumed by the Chrysopidae was extracted from laboratory and field specimens, then quantified and identified. Flower strips were found to attract predators and parasitoids, whose abundance increased as flowers bloomed. Cabbage plants next to the flower strips showed lower pest infestation as compared to cabbage plant control, although no significant differences were observed in the number of predators. Chrysopidae used flower strips as feeding, reproduction and shelter sites and mainly consumed pollen from Phacelia tanacetifolia Benth. Under laboratory conditions, C. carnea showed a preference for P. tanacetifolia and Coriandrum sativum L. pollen over Borago officinalis L. and Fagopyrum esculentum Moench. We show that tailored flower strips could be an efficient tool for enhancing beneficial arthropods and should be considered in integrated pest management for cabbage crops.

  • the effect of resident vegetation cover on abundance and diversity of green lacewings neuroptera Chrysopidae on olive trees
    Journal of Pest Science, 2017
    Co-Authors: Mario Porcel, Belen Cotes, Juan Castro, Mercedes Campos
    Abstract:

    Understorey habitats are optimal ecological structures for natural enemy enhancement in fruit orchards. A large-scale experiment was carried out to establish the effect of resident vegetation cover (VC) on green lacewings as compared to bare soil, the dominant soil management strategy used in Spanish olive orchards. Lacewings were sampled using baited McPhail traps for adults, and suction was used to collect adults and larvae from olive canopies. Additionally, we monitored the presence of the lacewing’s main target pest, olive moth eggs, as well as VC composition and density. McPhail trapping showed higher Chrysopidae abundances in VC plots during two consecutive years even though flowering plants represented 29.7 % of the total. Multivariate analysis identified Chrysoperla carnea s.l. and Pseudomallada prasinus as contributing to differences in abundance. VC slightly increased capture diversity; however, no specific link between any Chrysopidae species and VC was detected. No differences were observed in individuals collected through suction in 2009, which could be attributed to low sampling efficiency. In 2010, when sampling was increased considerably, higher adult and larval abundances were recorded in VC only with respect to C. carnea s.l. A delay was detected between McPhail captures and suction collection peaks. The fact that VC promoted higher abundance detected earlier through trapping, and later on olive canopies through suction, coinciding with P. oleae presence, suggests that resident VC may contribute to a build-up of green lacewing populations moving onto the crop at the time of the pest attack.

Michael Meissle - One of the best experts on this subject based on the ideXlab platform.

Nicoli Aldini R. - One of the best experts on this subject based on the ideXlab platform.

  • Contribution to the study of the fine structure of the egg in the genus Pseudomallada Tsukaguchi, 1995 (Neuroptera, Chrysopidae)
    Druckhaus Kastner AG Wolnzach Germany, 2019
    Co-Authors: Nicoli Aldini R.
    Abstract:

    The pattern of egg deposition, the morphology of the eggs and particularly the fine structure of the chorion surface examined by means of the scanning electron microscope (SEM) can provide useful elements for discriminating subfamilies, genera and species in green lacewings (Neuroptera, Chrysopidae). Observations are now available in the world literature on the fine structure of the exochorion for various genera and at least a dozen green lacewing species. The present work deals principally with the surface structures (exochorion surface, micropylar area) of the egg – examined by means of SEM – of some species belonging to the genus Pseudomallada Tsukaguchi, 1995 (Chrysopinae), which in Europe includes about two dozen taxa of specific or subspecific rank, some of which are difficult to discriminate and problematic as regards their systematic level. The species considered are: P. prasinus (Burmeister, 1839), P. inornatus (Navás, 1901), P. clathratus (Schneider, 1845), and P. cf. picteti (McLachlan, 1880). To date, the observations available in the literature on the egg features in these species are quite limited or absent. The pattern of the exochorion sculpturing provides more or less evident discriminating features between at least some of the species examined. It seems to be more difficult to find easily recognizable differences between species in the structure of the micropylar area. Other differences are to be found in the length of the egg and its stalk and in the shape of the egg itself, which can nevertheless change a little in relation to embryonic development

  • Contribution to the study of the fine structure of the egg in the genus Pseudomallada Tsukaguchi, 1995 (Neuroptera, Chrysopidae)
    place:Wolnzach, 2019
    Co-Authors: Nicoli Aldini R.
    Abstract:

    The pattern of egg deposition, the morphology of the eggs and particularly the fine structure of the chorion surface examined by means of the scanning electron microscope (SEM) can provide useful elements for discriminating subfamilies, genera and species in green lacewings (Neuroptera, Chrysopidae). Observations are now available in the world literature on the fine structure of the exochorion for various genera and at least a dozen green lacewing species. The present work deals principally with the surface structures (exochorion surface, micropylar area) of the egg \u2013 examined by means of SEM \u2013 of some species belonging to the genus Pseudomallada Tsukaguchi, 1995 (Chrysopinae), which in Europe includes about two dozen taxa of specific or subspecific rank, some of which are difficult to discriminate and problematic as regards their systematic level. The species considered are: P. prasinus (Burmeister, 1839), P. inornatus (Nav\ue1s, 1901), P. clathratus (Schneider, 1845), and P. cf. picteti (McLachlan, 1880). To date, the observations available in the literature on the egg features in these species are quite limited or absent. The pattern of the exochorion sculpturing provides more or less evident discriminating features between at least some of the species examined. It seems to be more difficult to find easily recognizable differences between species in the structure of the micropylar area. Other differences are to be found in the length of the egg and its stalk and in the shape of the egg itself, which can nevertheless change a little in relation to embryonic development

  • On some morphological abnormalities found in Neuroptera
    Druckhaus Kastner AG Wolnzach Germany, 2019
    Co-Authors: Nicoli Aldini R.
    Abstract:

    Cases of morphological abnormalities concerning Neuropterida have been published only rarely. If we neglect the deformities observable less rarely in the wings of the three orders of these insects (Megaloptera, Raphidioptera, Neuroptera), which result from defective adult emergence, or certain modest and recurrent anomalies in wing venation, it seems that these abnormalities are more rare than in other insects, such as Coleoptera, for which particularly striking teratological cases have been reported. The present contribution summarizes records of morphological anomalies in the literature concerning Neuropterida and illustrates three unpublished cases observed by the author in Neuroptera (Myrmeleontidae and Chrysopidae); of special interest is a case of unilateral antennal aplasia

Peter Duelli - One of the best experts on this subject based on the ideXlab platform.

  • apertochrysa tjeder 1966 a new senior synonym of pseudomallada tsukaguchi 1995 neuroptera Chrysopidae chrysopinae chrysopini
    Zootaxa, 2021
    Co-Authors: Laura C V Breitkreuz, Peter Duelli, John D Oswald
    Abstract:

    Apertochrysa Tjeder, 1966, is identified as a new senior subjective synonym of the large, subcosmopolitan, green lacewing genus currently known under the name Pseudomallada Tsukaguchi, 1995. Apertochrysa is rediagnosed and the taxonomic consequences of the new synonymy are reviewed. New combinations are created in Apertochrysa for 165 species formerly placed in Pseudomallada and for two species formerly placed in Mallada; three species are transferred from Pseudomallada back to previously-established combinations in Apertochrysa; and 13 additional species are retained in Apertochrysa from previous placements. This brings the total number of Apertochrysa species to 183.

  • evolution of green lacewings neuroptera Chrysopidae a molecular supermatrix approach
    Systematic Entomology, 2019
    Co-Authors: Ivonne J Garzonorduna, Shaun L Winterton, Catherine A Tauber, Atsushi Mochizuki, Peter Duelli, Yunlan Jiang, Laura C V Breitkreuz, Michael S Engel, Norman D Penny, Xingyue Liu
    Abstract:

    We present a time‐calibrated phylogeny of the charismatic green lacewings (Neuroptera: Chrysopidae). Previous phylogenetic studies on the family using DNA sequences have suffered from sparse taxon sampling and/or limited amounts of data. Here we combine all available previously published DNA sequence data and add to it new DNA sequences generated for this study. We analysed these data in a supermatrix using Bayesian and maximum likelihood methods and provide a phylogenetic hypothesis for the family that recovers strong support for the monophyly of all subfamilies and resolves relationships among a large proportion of chrysopine genera. Chrysopinae tribes Leucochrysini and Belonopterygini were recovered as monophyletic sister clades, while the species‐rich tribe Chrysopini was rendered paraphyletic by Ankylopterygini. Relationships among the subfamilies were resolved, although with relatively low statistical support, and the topology varied based on the method of analysis. Greatest support was found for Apochrysinae as sister to Nothochrysinae and Chrysopinae, which is in contrast to traditional concepts that place Nothochrysinae as sister to the rest of the family. Divergence estimates suggest that the stem groups to the various subfamilies diverged during the Triassic‐Jurassic, and that stem groups of the chrysopine tribes diverged during the Cretaceous.

  • green lacewing phylogeny based on three nuclear genes Chrysopidae neuroptera
    Systematic Entomology, 2008
    Co-Authors: Naoto Haruyama, Atsushi Mochizuki, Peter Duelli, Hideshi Naka, Masashi Nomura
    Abstract:

    Abstract Systematic relationships among higher taxa within Chrysopidae, a large and agriculturally significant neuropteran family, are poorly understood. A molecular phylogenetic survey of Chrysopidae was performed with three nuclear genes, namely wingless (546 bp), phosphoenolpyruvate carboxykinase (483 bp), and sodium/potassium ATPase alpha subunit (410 bp). We examined 83 species in 24 genera, mainly from Japan, Eurasia and Africa. Parsimony and Bayesian analyses of combined datasets of a total of 1439 bp demonstrated that (1) monophyly of the subfamily Chrysopinae was supported but the relationship between Nothochrysinae and Apochrysinae was unclear, although the two subfamilies together may constitute the sister taxon of Chrysopinae; (2) of the three tribes examined within Chrysopinae (Ankylopterygini, Belonopterygini and Chrysopini), monophyly of Ankylopterygini and Belonopterygini was supported, but the relationships among the three remain unclear; (3) seven sub-clades in Chrysopini were indicated, namely (i) Brinckochrysa, (ii) Chrysemosa + Suarius, (iii) Chrysotropia + Nineta, (iv) Mallada + Chrysoperla + Peyerimhoffina, (v) Cunctochrysa + Meleoma + Nipponochrysa + Apertochrysa albolineatoides, (vi) Chrysopa + Plesiochrysa, and (vii) Dichochrysa + Apertochrysa eurydera; and (4) most genera were monophyletic, except for Apertochrysa and Cunctochrysa, each of which was shown to have two distinct origins. Our molecular analysis allowed the assignment of several species of uncertain affinities to known genera. There was some disagreement between the molecular and previously published morphological phylogenies, but in general our results confirmed existing morphological hypotheses of evolution within the family.