Lutter contre les insectes nuisibles en agriculture biologique : intervenir en harmonie face à la complexité

  title={Lutter contre les insectes nuisibles en agriculture biologique : intervenir en harmonie face {\`a} la complexit{\'e}},
  author={Jos{\'e}e Boisclair and B. Estevez},
Les systemes agricoles en gestion biologique se caracterisent par une grande biodiversite et une forte complexite. La biodiversite est associee a une faune entomophage variee et abondante qui permet une meilleure lutte naturelle contre les insectes ravageurs qu’en agriculture intensive. Cette contribution ne se limite pas a la ferme. Certaines etudes a l’echelle du paysage demontrent que les zones non cultivees servent de reservoirs a la faune auxiliaire (predateurs et parasitoides). Cependant… 
10 Citations
Rôle des ennemis naturels dans la lutte biologique contre le puceron cendré, Dysaphis plantaginea Passerini (Hemiptera aphididae) en vergers de pommiers
Dans le contexte politique (reduction 50% de l’utilisation des pesticides a echeance de 2018 -Plan Ecophyto) et social actuel (mise en place de modes de production plus respectueux pour
Effet des extraits aqueux de Calotropis procera sur les principaux ravageurs du chou en culture au Sénégal
In Senegal, the cabbage is one of the most cultivated and consumed vegetables, from its relatively short cycle (60-90 days after road repair) and the possibility of being cultivated all the year, however it is attacked by several pests such as Plutella xylostella and Hellula undalis.
Bio-activité des huiles essentielles de l'Armoise blanche Artemessia herba alba : effet sur la reproduction et la mortalité des adultes d'un ravageur des denrées stockées Ephestia kuehniella (Lepidoptera)
The work reveals an insecticidal effect of essential oils extracted from aromatic plant Artemissia herba alba  on population of insect pests Ephestia kuehniella .
Circulating entomofaune in orchards of apple trees in the region of the Aures (Eastern - Algeria).
A study of the entomologic biodiversity, evaluated through its regularity at the families scale has been carried out and a description of the beneficial fauna has been realised.
Effect of management strategies on arthropod communities in the colonies of rosy apple aphid, Dysaphis plantaginea Passerini (Hemiptera: Aphididae) in south-eastern France
The findings emphasize the importance of no or less intensive synthetic pesticide usage for the conservation of natural enemies biodiversity and biological control of rosy apple aphid in apple orchards.
Low Tunnels Reduce Insect Populations, Insecticide Application, and Chewing Insect Damage on Brussels Sprouts
Fewer insect infestations and feeding injury indicate that low tunnels can be an effective management tool for sustainable vegetable production.
‘Le terroir, c’est la vie’: Re-animating a concept among Burgundy’s wine producers
Organic and biodynamic methods of cultivation present particular challenges for the production of wine in a terroir-based system. This remains underexplored in academic work, yet it represents the ...
Agroecological Crop Protection in Organic Farming: Relevance and Limits
Plant protection is one of the major issues in organic farming. Organic crop protection (OCP) strategies often rely on a limited number of methods that provide only partial control of pests and that
Integrated pest management: good intentions, hard realities. A review
Integrated Pest Management (IPM) provides an illustration of how crop protection has (or has not) evolved over the past six decades. Throughout this period, IPM has endeavored to promote sustainable
Eco-Friendly Nets and Floating Row Covers Reduce Pest Infestation and Improve Tomato (Solanum lycopersicum L.) Yields for Smallholder Farmers in Kenya
The use of EFN and FRC helped to manage pests with the lowest pest population obtained under FRC maintained permanently covered and the highest population recorded in the untreated control.


Parasitoïdes et lutte biologique: paradigme ou panacée ?
La lutte biologique utilise des organismes vivants pour diminuer les niveaux de population d'autres organismes, generalement nuisibles. Les ennemis naturels les plus souvent utilises en lutte
Pathogenicity of Beauveria bassiana isolates toward Leptinotarsa decemlineata [Coleoptera : Chrysomelidae], Myzus persicae [Homoptera : Aphididae] and their predator Coleomegilla maculata lengi [Coleoptera : Coccinellidae]
L'effet pathogene de dix isolats de Beauveria bassiana de differentes sources and provenances geographiques a ete evalue au laboratoire a une concentration of 107 conidies ml-1 sur deux insectes ravageurs, le doryphore de la pomme de terre and le puceron vert du pecher, et leur predateur, the coccinelle maculee.
Factors Influencing the Population Dynamics of Brevicoryne brassicae in Undersown Brussels Sprouts
Intercropping Brussels sprouts significantly reduced densities of cabbage aphids and the impact of natural enemies in relation to vegetation diversity was assessed.
Influence of intraguild predation among generalist insect predators on the suppression of an herbivore population
It is concluded that intraguild predation in this system is wide-spread and has potentially important influences on the population dynamics of a key herbivore.
Are Aphidophagous Ladybirds (Coccinellidae) Prudent Predators
Aphidophagous ladybirds tend to lay eggs close to their prey and their voracious larvae forage in a way that results in them remaining in or close to aphid colonies, which is a very unstable food resource for predators.
ABSTRACT Intercropping has potential as an alternative to chemical methods of pest control, and one of its effects may be to provide a favourable environment for beneficial invertebrates, including
Intraguild predation among aphid predators : Characterization and influence of extraguild prey density
This study shows that IGP is influenced by factors inherent to the predators and external factors such as extraguild prey density, which is discussed further in the context of aphid biological control.
Effects of Shelterbelts on the Aerial Distribution of Insect Pests in Muskmelon
ABSTRACT Sticky traps were used to measure how tree shelter-belts influence the abundance of crop insect pests and beneficial arthropods in muskmelon (Cucumis melo L.) plots in eastern Nebraska.
Varietal Resistance to Insect Attack in Various Cruciferous Crops
The relative resistance to insect attack of 43 varieties of Cruciferae representing 11 different Brassica crops, including 16 green and 5 red varieties of cabbage, were studied in field experiments
Both high agricultural productivity and human health depend on the activity of a diverse natural biota composed of an estimated 10 million (range 2-80 million) species of plants and animals that inhabit the world.