Search Results - "Van Helden, Maarten"

Is what you see what you get? The relationship between field observed and laboratory observed aphid parasitism rates in canola fields by Ward, Samantha Elizabeth, Umina, Paul A., Parry, Hazel, Balfour‐Cunningham, Amber, Cheng, Xuan, Heddle, Thomas, Holloway, Joanne C., Langley, Caitlin, Severtson, Dustin, Helden, Maarten Van, Hoffmann, Ary A.

“…Background Estimating parasitoid abundance in the field can be difficult, even more so when attempting to quantify parasitism rates and the ecosystem service…”
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Impact of sown fallows on the Xiphinema index populations in different soil types by Laveau, Coralie, Mary, Séverine, Darrieutort, Guillaume, Leeuwen, Cornelis van, Helden, Maarten van

“…The nematode Xiphinema index is, economically, the major virus vector in viticulture, transmitting specifically the Grapevine Fanleaf Virus (GFLV), the most…”
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The effects of insecticide seed treatments on the parasitism and predation of Myzus persicae (Homoptera: Aphididae) in canola by Ward, Samantha E, Hoffmann, Ary A, Van Helden, Maarten, Slavenko, Alex, Umina, Paul A

“…Abstract The green peach aphid, Myzus persicae (Sulzer) (Homoptera: Aphididae), is a major pest of brassica plants, with the ability to transmit > 100 viruses…”
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Economic Injury Levels and Dynamic Action Thresholds for Diuraphis noxia (Hemiptera: Aphididae) in Australian Cereal Crops by Van Helden, Maarten, Heddle, Thomas, Umina, Paul A, Maino, James L

“…The Russian wheat aphid (Diuraphis noxia [Kurdjumov, Hemiptera: Aphididae], RWA) was first detected in Australia in 2016 and is threatening an annual cereal…”
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Lifecycle of the invasive omnivore, Forficula auricularia, in Australian grain growing environments by Binns, Matthew, Hoffmann, Ary A, Helden, Maarten, Heddle, Thomas, Hill, Matthew P, Macfadyen, Sarina, Nash, Michael A, Umina, Paul A

“…BACKGROUND The European earwig, Forficula auricularia (L.) (Dermaptera: Forficulidae), is regarded as an important beneficial in many orchard environments but…”
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Life stages of the non‐native Ommatoiulus moreleti (Lucas, 1860) (Julida, Julidae) in Australian small grain systems by Heddle, Thomas, Umina, Paul A., van Helden, Maarten, Alhwash, Lamyaa, Cheng, Xuan, Binns, Matthew, Hoffmann, Ary A.

“…The Portuguese millipede, Ommatoiulus moreleti (Lucas, 1860), is increasingly a pest of grains crops in Australian agricultural ecosystems. With the rapid…”
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Biology, ecology and management of Diuraphis noxia (Hemiptera: Aphididae) in Australia by Ward, Samantha, Helden, Maarten, Heddle, Thomas, Ridland, Peter M, Pirtle, Elia, Umina, Paul A

“…The Russian wheat aphid, Diuraphis noxia (Mordvilko ex Kurdjumov), is one of the world's most economically important pests of grain crops and has been recorded…”
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Microsatellite and mitochondrial data provide evidence for a single major introduction for the Neartic leafhopper Scaphoideus titanus in Europe by Papura, Daciana, Burban, Christian, van Helden, Maarten, Giresse, Xavier, Nusillard, Benoit, Guillemaud, Thomas, Kerdelhué, Carole

“…Scaphoideus titanus, a leafhopper native to North America and invasive in Europe, is the vector of the Flavescence dorée phytoplasma, the causal agent of the…”
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Identifying critical research gaps that limit control options for invertebrate pests in Australian grain production systems by Macfadyen, Sarina, Moradi‐Vajargah, Mona, Umina, Paul, Hoffmann, Ary, Nash, Michael, Holloway, Jo, Severtson, Dusty, Hill, Matthew, Van Helden, Maarten, Barton, Madeleine

“…Integrated Pest Management (IPM) is often described as a knowledge‐intensive approach to invertebrate pest management, requiring information on the biology,…”
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Genetic signature of amphimixis allows for the detection and fine scale localization of sexual reproduction events in a mainly parthenogenetic nematode by Villate, Laure, Esmenjaud, Daniel, Van Helden, Maarten, Stoeckel, Solenn, Plantard, Olivier

“…Asexuality is an important mode of reproduction in eukaryotic taxa and has a theoretical advantage over sexual reproduction because of the increased ability to…”
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Application of a Mechanistic Model to Explore Management Strategies for Biological Control of an Agricultural Pest by Barton, Madeleine G., Parry, Hazel, Umina, Paul A., Binns, Matthew R., Heddle, Thomas, Hoffmann, Ary A., Holloway, Joanne, Severtson, Dustin, Van Helden, Maarten, Ward, Samantha, Wood, Rachel, Macfadyen, Sarina

“…Despite the known benefits of integrated pest management, adoption in Australian broadacre crops has been slow, in part due to the lack of understanding about…”
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Morphological and Molecular Analysis of Australian Earwigs (Dermaptera) Points to Unique Species and Regional Endemism in the Anisolabididae Family by Stuart, Oliver P, Binns, Matthew, Umina, Paul A, Holloway, Joanne, Severtson, Dustin, Nash, Michael, Heddle, Thomas, van Helden, Maarten, Hoffmann, Ary A

“…Dermaptera (earwigs) from the Anisolabididae family may be important for pest control but their taxonomy and status in Australia is poorly studied. Here we…”
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First detection of Tomato black ring virus (TBRV) in a French vineyard by Coralie Laveau, Maarten van Helden, Guillaume Darrieutort, Daniel Esmenjaud, Gérard Demangeat

“…Aim: Grapevine plants from the Bordeaux wine region (France) showing symptoms of fanleaf degeneration, but negative for the two main fanleaf viruses were…”
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Forecasting impacts of biological control under future climates: mechanistic modelling of an aphid pest and a parasitic wasp by Barton, Madeleine, Parry, Hazel, Ward, Samantha, Hoffmann, Ary A., Umina, Paul A., van Helden, Maarten, Macfadyen, Sarina

“…•We develop a population dynamics model for a global aphid pest and parasitic wasp.•The model is calibrated and validated with field data from south-eastern…”
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Parasitoid communities and interactions with Diuraphis noxia in Australian cereal production systems by Heddle, Thomas, Van Helden, Maarten, Nash, Michael, Muirhead, Kate

“…New information is presented on previously introduced aphid parasitoids using the newly arrived Russian wheat aphid (RWA), Diuraphis noxia Kurdjumov 1913…”
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Spatial and temporal distribution of Empoasca vitis within a vineyard by Decante, Damien, van Helden, Maarten

“…1 The intra-plot spatial distribution of the green leafhopper Empoasca vitis (Goethe) (Cicadellidae, Empoascini) was assessed over three successive growing…”
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Quantitative and qualitative impact of Tomato Black Ring Virus (TBRV) on Merlot and Cabernet franc by Dewasme, Coralie

“…Aim: Fifteen nepoviruses are able to induce fanleaf degeneration in grapes, which is the viral disease with the highest economic impact. Grapevine FanLeaf…”
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Control of Xiphinema index Populations by Fallow Plants Under Greenhouse and Field Conditions by VILLATE, Laure, MORIN, Elisa, DEMANGEAT, Gerard, VAN HELDEN, Maarten, ESMENJAUD, Daniel

“…The dagger nematode Xiphinema index has a high economic impact in vineyards by direct pathogenicity and above all by transmitting the Grapevine fanleaf virus…”
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Complete mitochondrial genome of the European Grapevine moth (EGVM) Lobesia botrana (Lepidoptera: Tortricidae) by Piper, Melissa Claire, van Helden, Maarten, Court, Leon N, Tay, Wee Tek

“…The Lobesia botrana larvae feed on grapevine (Vitis vinifera L.), thereby reducing crop yield and increasing crop susceptibility to fungal and bacterial…”
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Phloem sap collection from lettuce (Lactuca sativa L.): chemical comparison among collection methods by VAN HELDEN, M, TJALLINGII, W. F, VAN BEEK, T. A

“…The chemical composition of phloem sap from lettuce, collected by three different methods, was compared. Phloem sap from stylectomy samples contained sucrose…”
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