Journal ArticleDOI
Can Insectary Plants Enhance the Presence of Natural Enemies of the Green Peach Aphid (Hemiptera: Aphididae) in Mediterranean Peach Orchards?
Yahana Aparicio,Jordi Riudavets,Rosa Gabarra,Nuria Agustí,Neus Rodríguez-Gasol,Georgina Alins,Anabel Blasco-Moreno,Judit Arnó +7 more
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TLDR
In this paper, a 2-yr field experiment was conducted to identify the key predators of the aphid; to determine whether the proximity of insectary plants boost natural enemies of Myzus persicae in comparison to the resident vegetation; and whether selected insectarian plants enhance natural enemy populations in the margins of peach orchards.Abstract:
Conservation biological control could be an alternative to insecticides for the management of the aphid Myzus persicae (Sulzer). To develop sustainable strategies for M. persicae control in peach orchards in the Mediterranean, a 2-yr field experiment was conducted to identify the key predators of the aphid; to determine whether the proximity of insectary plants boost natural enemies of M. persicae in comparison to the resident vegetation; and whether selected insectary plants enhance natural enemy populations in the margins of peach orchards. Aphidoletes aphidimyza Rondani (Diptera: Cecidomyiidae) and Episyrphus balteatus De Geer (Diptera: Syrphidae) were the most abundant predators found among sentinel aphid colonies, accounting for 57% and 26%, respectively. Samplings during 2015 yielded twice as many hoverflies in M. persicae sentinel plants close to the insectary plants as those close to the resident vegetation. The abundance of other natural enemies in sentinel plants, depending on their proximity to the insectary plants, was not significantly different in either of the 2 yr. Hoverflies hovered more often over the insectary plants than over the resident vegetation and landed significantly more often on Lobularia maritima (L.) Desv., Moricandia arvensis (L.) DC., and Sinapis alba L. (Brassicales: Brassicaceae) than on Achillea millefollium L. (Asterales: Compositae). Parasitoids were significantly more abundant in L. maritima and A. millefollium. The vicinity of selected insectary plants to peach orchards could improve the presence of hoverflies, which might benefit the biological control of M. persicae.read more
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Natural enemies associated with Tuta absoluta and functional biodiversity in vegetable crops
TL;DR: In this article, the authors conducted a field study to determine the relative abundance of natural enemies associated with T. absoluta in tomato fields and to assess whether insectary plants placed in the vicinity of vegetable crops would help to improve functional biodiversity in the farms.
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Molecular tracking of insect dispersal to verify arthropod predator movement from an alfalfa field to a peach orchard
TL;DR: A DNA mark-capture procedure based on a topical application of a solution of grinded brine shrimp cysts, Artemia spp, followed by a conventional PCR to monitor predator dispersal from an alfalfa field to a neighboring peach orchard confirms the usefulness of this marking method to monitor dispersal of biological control agents between neighboring crops.
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Development of a multiprimer metabarcoding approach to understanding trophic interactions in agroecosystems
TL;DR: In this paper , a multiprimer metabarcoding approach was developed for screening the most common trophic interactions of two predatory arthropods with contrasting morphologies, Rhagonycha fulva (Coleoptera: Cantharidae) and Anthocoris nemoralis (Hemiptera: Anthocoridae).
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Using flower strips to promote green lacewings to control cabbage insect pests
TL;DR: It is shown that tailored flower strips could be an efficient tool for enhancing beneficial arthropods and should be considered in integrated pest management for cabbage crops.
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Land use alters the abundance of herbivore and predatory insects on crops: the case of alfalfa
TL;DR: It is suggested that a high proportion of intensively managed crops (orchards) in the landscape interferes with the role of alfalfa as a reservoir of predatory insects for adjacent crops and that the responses to local and landscape structures are temporal and species-specific as previously concluded for maize.
References
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Journal ArticleDOI
Habitat Management to Conserve Natural Enemies of Arthropod Pests in Agriculture
TL;DR: The rapidly expanding literature on habitat management is reviewed with attention to practices for favoring predators and parasitoids, implementation of habitat management, and the contributions of modeling and ecological theory to this developing area of conservation biological control.
Journal ArticleDOI
Parallel Declines in Pollinators and Insect-Pollinated Plants in Britain and the Netherlands
Jacobus C. Biesmeijer,Stuart P. M. Roberts,Menno Reemer,Ralf Ohlemüller,Michael Edwards,T.M.J. Peeters,T.M.J. Peeters,A. P. Schaffers,Simon G. Potts,R.M.J.C. Kleukers,Chris D. Thomas,Josef Settele,William E. Kunin +12 more
TL;DR: Evidence of declines (pre-versus post-1980) in local bee diversity in Britain and the Netherlands is found and a causal connection between local extinctions of functionally linked plant and pollinator species is strongly suggested.
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Suggestions for unifying the terminology in biological control
TL;DR: Suggestions forunifying the terminology in biological control across different research disciplines, such as biological control of arthropods, weeds and plant pathogens, are given.
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Omnivory in terrestrial arthropods: mixing plant and prey diets.
Moshe Coll,Moshe Guershon +1 more
TL;DR: This review discusses some unique morphological, physiological, and behavioral traits that enable omnivores to exploit such dissimilar foods, and explores possible evolutionary pathways to omnivory.
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Flower-visiting by hymenopteran parasitoids
TL;DR: The inflorescences of 53 plant species in a variety of habitats were examined for the presence of adult hymenopteran parasitoids (‘Parasitica’ only), and the wasps observed for feeding behaviour, and the literature reviewed.