Results: 49

Do parasitoid density and host age affect the parasitism of Palmistichus elaeisis (Hymenoptera: Eulophidae)?

Arq. Inst. Biol; 86 (), 2019
The incidence of lepidopteran defoliants is one of the environmental factors that regulate the productivity of cultivated forests. The parasitoid Palmistichus elaeisis (Hymenoptera: Eulophidae) has significant importance for its efficiency in the parasitism of pupae of these Lepidoptera. The objective of...

Presencia larval de Culex (Culex) interrogator (Dyar and Knab) (Diptera: Culicidae) en Cuba
Larval presence of Culex (Culex) interrogator (Dyar and Knab) (Diptera: Culicidae) in Cuba

Rev. cuba. med. trop; 70 (3), 2018
Actualmente se conocen más de 3 500 especies de mosquitos y cada día se registran otras de importancia en la transmisión de enfermedades al hombre y los animales. El objetivo de este trabajo es registrar por primera vez la presencia larval de Cx interrogator en la provincia de Santiago de Cuba y en Cu...

Potential of endophytic fungi as biocontrol agents of Duponchelia fovealis (Zeller) (Lepidoptera: Crambidae)

Braz. j. biol; 78 (3), 2018
Abstract This study reports the first assessment of endophytic fungi isolated from strawberry leaves and selection of isolates for the control of Duponchelia fovealis, a new pest of strawberries. A total of 400 strawberry leaves of the cultivar 'Albion' were collected in four commercial farms. Leaves wer...

Efectividad de Beauveria bassiana (Baubassil®) sobre la garrapata común del ganado bovino Rhipicephalus microplus en el Departamento de la Guajira, Colombia

Rev. argent. microbiol; 50 (4), 2018
Se evaluó la efectividad de Baubassil® (Beauveria bassiana) sobre la garrapata Rhipicephalus (Boophilus) microplus. En la fase in vitro, se determinaron la temperatura óptima de germinación del hongo mediante microcultivos a 25, 30 y 35° C, y la mortalidad de las garrapatas. En campo, en un diseño ...

Differential formononetin content in cultivars and experimental lines of red clover (Trifolium pratense L. ) plants affect the feeding behaviour of Hylastinus obscurus (Coleoptera: Curculionidae)

Red clover (Trifolium pratense L.) is a perennial plant widely used as a forage resource for several animals. This plant is the exclusive host of Hylastinus obscurus (Marsham) which causes irreparable damages to the root system affecting their persistence. It has been reported that the presence of the is...

Potential of entomopathogenic nematodes of the genus Heterorhabditis for the control of Stomoxys calcitrans (Diptera: Muscidae)

Abstract The present study verified the pathogenic potential of entomopathogenic nematodes (EPNs) of the genus Heterorhabditis (Heterorhabditis bacteriophora, isolate HP88 and Heterorhabditis baujardi isolate LPP7) to immature stages of Stomoxys calcitrans in the laboratory. All EPN concentrations of the...

Evaluation of phytotherapy alternatives for controlling Rhipicephalus (Boophilus) microplus in vitro

Abstract The objective of this study was to identify the main chemical components of the essential oil of Cuminum cyminum L. (cumin) and of the fixed oils of Bertholletia excelsa (Brazil nut) and of Helianthus annuus (sunflower seed). As well as testing the three oils and three different commercial synth...

Characterization of Cry toxins from autochthonous Bacillus thuringiensis isolates from Mexico

Abstract: Background: Chemical pesticides, widely used in agriculture and vector-borne disease control, have shown toxic effects on the environment and the people in contact with them. Bacillus thuringiensis is a widely used bacterium for alternative and safer control of insect pests. Its toxins are sp...

Screening of melon genotypes for resistance to vegetable leafminer and your phenotypic correlations with colorimetry

An. acad. bras. ciênc; 89 (2), 2017
ABSTRACT Melon is one of the most important vegetable crops in the world. With short cycle in a system of phased planting, phytosanitary control is compromised, and a great volume of agricultural chemicals is used to control vegetable leafminer. Genetic control is an ideal alternative to avoid the damage...

Duddingtonia flagrans no controle de nematoides gastrintestinais de equinos em fases de vida livre

O objetivo deste estudo foi avaliar a atividade predatória do fungo Duddingtonia flagrans contra larvas infectantes (L3) de nematoides gastrintestinais na pastagem e no bolo fecal de equinos, em um período de 21 dias. O delineamento experimental foi inteiramente ao acaso, com três grupos tratados (G1,...