Marielle Babineaucesar · Sustainable Agriculture
Marielle Babineau
PhD
About
17
Publications
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Introduction
Marielle Babineau currently works at Cesar Australia doing research on insecticide resistance and sustainable pest management in agriculture. Previous roles include postdoc at the Agriculture and Food, The Commonwealth Scientific and Industrial Research Organisation. Marielle does research in Plant Protection and Animal Health, Agricultural Plant Science and Evolutionary Biology.
Publications
Publications (17)
Parasitic worms are serious pests of humans, livestock and crops worldwide. Multiple management strategies are employed in order to reduce their impact, and some of these may affect their genome and population allelic frequency distribution. The evolution of chemical resistance, ecological changes, and pest dispersal have allowed an increasing numb...
Globally, 27 aphid species have evolved resistance to almost 100 insecticide active ingredients. A proactive approach to resistance management in pest aphids is needed; this should include risk analysis, followed by regular baseline susceptibility assays for species deemed at high risk of evolving resistance. The cowpea aphid (Aphis craccivora Koch...
Context The Australian dairy industry largely relies on grass-based pastures to feed cattle, yet these pastures also host dynamic invertebrate communities that can damage or benefit pasture productivity. While Australian dairy managers have traditionally focused on invertebrates that damage pastures (i.e. pests), invertebrates that provide valuable...
The dairy industry provides an important contribution to the Australian economy, but its productivity relies on grass pastures that suffer significant damage from invertebrate pests. Managing these pests remains a challenge as information on their abundance and impact is only available for a handful of taxa in a few Australian dairy regions. In thi...
The bird‐cherry oat aphid (Rhopalosiphum padi) is a global pest, attacking most cereal crops including barley, wheat, oats and triticale. The aphids cause yield losses through direct feeding damage and the transmission of plant viruses. In Australia, feeding injury can reduce cereal yields by 6%, with the damage caused by aphid‐vectored viruses red...
Lucerne flea (Sminthurus viridis Linnaeus) is an important establishment pest of winter grain crops and pastures in Australia. Control of S. viridis largely relies on the application of insecticides through foliar sprays or seed treatments; however, in recent years, farmers have faced increasing difficulties managing this pest. This is likely due t...
Drug resistance in livestock parasites causes significant financial loss as well as serious animal welfare issues. Early resistance to drugs often goes undetected until a widespread high level of resistance is achieved, at which point potential management solutions are expensive. The aim of this study was to develop a genome-wide SNP-panel for the...
The tetrazolium (TZ) test is an efficient way to evaluate seed viability.
However, TZ protocols vary greatly among species and need to be adjusted
for each. Loose silky bentgrass (Apera spica-venti) is an important grass
weed in Central and Eastern Europe with very small seeds (3.0 × 0.5 mm).
Due to the small size of A. spica-venti seeds, it is ver...
Herbicide resistance is an example of plant evolution caused by an increased reliance on herbicides with few sites of action to manage weed populations. This micro-evolutionary process depends on fitness, therefore the assessment of fitness differences between susceptible and resistant populations are pivotal to establish management strategies. Loo...
Silky windgrass is a serious weed in central and northern Europe. Its importance has escalated in recent years because of its growing resistance to acetolactate synthase (ALS)-inhibiting herbicides. This study investigated the resistance level for three herbicide sites of action in eight silky windgrass populations, collected in fields neighboring...
Our understanding of the taxonomic limits and biogeographical evolution of the Afro-Madagascan genus Delonix and the closely related monospecific Madagascan endemic genera Colvillea and Lemuropisum have been hampered by unresolved intergeneric and interspecific relationships. Here we study the phylogenetics of the group using nucleotide sequences f...
The classification of the legume family proposed here addresses the long-known non-monophyly of the traditionally recognised subfamily Caesalpinioideae, by recognising six robustly supported monophyletic subfamilies. This new classification uses as its framework the most comprehensive phylogenetic analyses of legumes to date, based on plastid matK...
Abstract
Background
Loose silky bentgrass (Apera spica-venti) is an important weed in Europe with a recent increase in herbicide resistance cases. The lack of genetic information about this noxious weed limits its biological understanding such as growth, reproduction, genetic variation, molecular ecology and metabolic herbicide resistance. This st...
The classification of the legume family proposed here addresses the long-known non-monophyly of the traditionally recognised subfamily Caesalpinioideae, by recognising six robustly supported monophyletic subfamilies. This new classification uses as its framework the most comprehensive phylogenetic analyses of legumes to date, based on plastid matK...
Numerous studies have identified low copy nuclear genes (LCNG) with phylogenetic potential throughout angiosperms, several specifically focused on Leguminosae. However, phylogenetic resolution at the species- to subspecies-level is often inferred based only on a small subset of taxa scattered throughout the higher level study group. This study aims...
Questions
Question (1)
I have a set of populations that have been tested against multiple pesticide doses which show dose-response curve with a large plateau in the middle. I usually use R package drc but drc does not seem to have a biphasic curve option. I tried package mixtox with function CurveFit which has a biphasic model but cannot find how to fit multiple populations at the same time or add different models to the same plot. The option biphasic is also in GraphPrism but I am trying to avoid this software. For the moment, I divided my data in 2 (on both side of the plateau) and fitted LL3 but the plotting of these on the same plot is quite messy to say the least.
