Plant tolerance to herbivory is a key approach for managing pests. In alfalfa, Medicago sativa, the potato leafhopper, Empoasca fabae, is a major pest as a result of the cascade of plant responses to piercing-sucking injury. To identify tolerance to its injury based on alfalfa physiology, experiments were conducted in the field and greenhouse. In our comparison of the response of field-grown al...

Se evaluó la fluctuación de insectos plagas en 16 genotipos maíz, se analizó relación entre el número y rendimiento grano, identificaron las más importantes para condiciones del distrito Campo Verde Pucallpa, región Ucayali. maíz amarillo duro fueron evaluados bajo diseño bloques completos al azar con tres repeticiones; cada parcela tuvo 72 plantas sembradas a una densidad 62.500 por hectárea. ...

According to the European Directive 2009/128/EC and subsequent provisions activated in member states, conventional pesticides should be progressively replaced by “non-chemical tools and/or measures”. The identification of reliable alternatives is crucial achieve this objective. A project (PURE) was funded investigate topic with reference annual perennial crops. In framework, a number natural in...

Generalist predators are widely acknowledged to contribute valuable levels of biological control in agroecosystems throughout the world. Although their feeding habits can result in the rejection of target pests in favor of preferred and often more nutritious non-pest prey, these natural enemies are capable of colonizing habitats prior to the arrival of pests by subsisting on alternative sources...

BACKGROUND The potential of systemic neonicotinoid insecticides to control potato leafhopper, Empoasca fabae (Harris), a damaging pest of wine grapes in the eastern United States, was investigated. Soil or foliar applications were made to potted or field-grown vines, and the response of leafhoppers was determined in clip cages over the following month on young or mature leaves. RESULTS Foliar...