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Accueil du site → Projets de développement → Projets de recherche pour le Développement → 2011 → ECOLOGICALLY BASED MANAGEMENT OF GRASSHOPPERS AND OTHER INSECT PESTS IN THE NORTHERN GREAT PLAINS

United States Department of Agriculture (USDA) 2011

ECOLOGICALLY BASED MANAGEMENT OF GRASSHOPPERS AND OTHER INSECT PESTS IN THE NORTHERN GREAT PLAINS

Grasshopers Insect Pests

United States Department of Agriculture (USDA) Research, Education & Economics Information System (REEIS)

Titre : ECOLOGICALLY BASED MANAGEMENT OF GRASSHOPPERS AND OTHER INSECT PESTS IN THE NORTHERN GREAT PLAINS

Identification : 3032-22000-016-00

Pays : Etats Unis

Durée : Jan 03, 2011 à Jan 02, 2016

Objectif
Objective 1 : Clarify how grasshoppers influence interactions between exotic and native grassland plants and the sustainability of grazing systems.
Objective 2 : Define factors that influence grasshopper outbreaks and Mormon cricket migration to enhance predictions of when outbreaks and migration occur, and identify management techniques that impact population densities. Subobjective 2a : Define the impact climate conditions have on grasshopper and Mormon cricket egg survival to further understand population dynamics and outbreaks. Subobjective 2b : Examine the effectiveness and underlying mechanisms of grassland management practices, such as fire and livestock grazing, to sustainably manage grasshopper populations.
Objective 3 : Identify ecological factors underlying variability in populations of key crop insect pests and their natural enemies, and identify factors and/or management approaches that augment natural enemies and maximize control of key insect pests. Subobjective 3a : Quantify the effects of semi-natural habitat (grasslands) on grass feeding herbivore-parasitoid food web dynamics and pest pressure in small grains. Subobjective 3b : Determine the effects of landscape structure on the diversity and abundance of natural enemy communities associated with alfalfa pests and how this ultimately influences key interaction-based ecosystem services (i.e. biological control of pests by parasitoids, predators and pathogens).
Objective 4 : Define biological factors and mechanisms that regulate locomotion, reproduction, and immunity to enhance grasshopper and Mormon cricket management. Subobjective 4a : Identify intake target of Mormon crickets in last nymphal instar and first 8 days of adult life, during which reproductive and immune systems are maturing, and determine if dietary deficiencies alter the efficacy of fungal control. Subobjective 4b : Determine if dietary deficiencies exhibited by migratory Mormon crickets in the field alter their ability to escalate their immune responses.
Objective 5 : Develop commercializable microbial control agents and methods for their use in managing pest insects such as grasshoppers and Mormon crickets.
Objective 6 : Assess the suitability and potential effectiveness of classical biocontrol agents against wheat stem sawfly.

Présentation : USDA

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