Insect Population
Mostrando 1-12 de 198 artigos, teses e dissertações.
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1. Record of Conotelus luteicornis Erichson (Coleoptera: Nitidulidae) in passion fruit vine in Acre state, Brazil
ABSTRACT The first record of Conotelus luteicornis Erichson (Coleoptera: Nitidulidae) was made in a commercial passion fruit vine planting in the municipality of Senador Guiomard, Acre state, Brazil. The insects were found inside the flowers where larvae and adults feed, causing early abortion and, consequently, losses in production. Therefore, the first rec
Rev. Ceres. Publicado em: 2021-08
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2. Identification of Two Additional Behaviorally Active Gland Constituents of Female Diatraea saccharalis (Fabricius) (Lepidoptera: Crambidae)
The sugarcane borer, Diatraea saccharalis (Fabricius), is the major pest insect attacking sugarcane crops in Brazil. Population control by insecticide treatment is not efficient due to simultaneous presence of all developmental stages of the insect throughout the year, and alternative control methods are needed. Two female-produced sex pheromone components,
J. Braz. Chem. Soc.. Publicado em: 2021-01
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3. Effects of entomopathogenic nematodes Steinernema carpocapsae and Heterorhabditis bacteriophora on the fitness of a Vip3A resistant subpopulation of Heliothis virescens (Noctuidae: Lepidoptera)
ABSTRACT The widespread use of transgenic plants imposes selection pressure on insect pest populations to develop insecticide resistance. Evaluation of effectiveness of resistance management strategies is very important in resistance management programs. Resistance management to insecticides is widely believed to depend in part on associated fitness costs. F
Bragantia. Publicado em: 2020-06
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4. Selection to high productivity and stink bugs resistance by multivariate data analyses in soybean
ABSTRACT Stink bugs that affect soybeans are responsible for significant losses in seed production, quality and germination potential, in addition to hindering the mechanized harvest. To develop insect resistant materials, the breeder can compile a selection index by factor analysis. Therefore, the objective of this work was to validate the use of factor ana
Bragantia. Publicado em: 2020-06
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5. Effect of canopy cover on development of cedar (Cedrela fissilis) and aspects of damage caused by Hypsipyla grandella in agroforestry system
Resumo Cedrela fissilis (Vell.) é uma importante espécie madeirável nativa da América do Sul que sofre frequente pressão do extrativismo ilegal. As iniciativas de cultivo comercial acumulam fracassos recorrentes pela ação da broca-do-cedro Hypsipyla grandella (Zeller, 1848). Um dos métodos de manejo utilizados para reduzir os ataques é o plantio em
Ciênc. Florest.. Publicado em: 02/12/2019
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6. Entomofauna associated with Avena sativa in southern Mato Grosso do Sul, Brazil
RESUMO O objetivo deste trabalho foi analisar a composição faunística de insetos e sua flutuação populacional em Avena sativa na região sul do Mato Grosso do Sul. O experimento foi conduzido na Fazenda Experimental da Universidade Federal de Grande Dourados (FAECA), em Dourados, Mato Grosso do Sul, em uma área de três hectares divididos em 80 lotes d
Arq. Inst. Biol.. Publicado em: 14/11/2019
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7. Resistance of the stable fly, Stomoxys calcitrans (Diptera: Muscidae), to cypermethrin in outbreak areas in Midwestern Brazil
Resumo Explosões populacionais da mosca-dos-estábulos (Stomoxys calcitrans) tornaram-se uma séria preocupação para a pecuária próxima a usinas de cana-de-açúcar em algumas regiões do Brasil, devido à massiva reprodução da mosca em resíduos e subprodutos do processamento da cana. Apesar da limitada eficiência dos inseticidas no controle dos sur
Rev. Bras. Parasitol. Vet.. Publicado em: 04/11/2019
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8. Spatial and temporal distribution of South American fruit fly in vineyards
ABSTRACT The South American fruit fly Anastrepha fraterculus (Wied., 1830) is one of the major insect pests of economic importance in vineyards of Southern Brazil. Understanding species behavior and knowing the moments when their population peaks occur can help producers and technicians to define management strategies. This work was carried out the spatial a
Rev. Ceres. Publicado em: 03/10/2019
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9. Effect of seed treatment with insecticides on the control of Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae) in soybean
RESUMO A lagarta-do-cartucho é um dos principais insetos-praga no Brasil. Assim, o presente trabalho teve por objetivo avaliar o efeito do tratamento de sementes no controle de Spodoptera frugiperda nas infestações iniciais da cultura da soja. O delineamento experimental foi inteiramente casualizado, com quatro amostras replicadas de seis tratamentos inse
Arq. Inst. Biol.. Publicado em: 26/09/2019
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10. Brazilian consumers’ perception of edible insects
RESUMO: Estima-se que em 2050 a população mundial contará com cerca de 9 bilhões de pessoas, e, portanto, a necessidade de fontes alternativas de proteína é inevitável, uma vez que as fontes convencionais, como carne de gado, suínos e aves, não serão suficientes para suprir a demanda do crescimento populacional. A alimentação que inclui fontes a
Cienc. Rural. Publicado em: 23/09/2019
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11. Genetic and biological characterisation of Zika virus isolates from different Brazilian regions
BACKGROUND Zika virus (ZIKV) infections reported in recent epidemics have been linked to clinical complications that had never been associated with ZIKV before. Adaptive mutations could have contributed to the successful emergence of ZIKV as a global health threat to a nonimmune population. However, the causal relationships between the ZIKV genetic determi
Mem. Inst. Oswaldo Cruz. Publicado em: 19/08/2019
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12. Evaluation of food baits to capture Drosophila suzukii in the southern of Brazil
Abstract: Drosophila suzukii is one of the main pests of small fruits in the world. An effective monitoring is fundamental to detect the presence of the fly and to predict the infestation of fruits in new areas. We evaluated the food baits Ceratrap®, Torula®, Biofruit®, Suzukii Trap®, apple cider vinegar, and a homemade mixture comprising wine, vinegar a
An. Acad. Bras. Ciênc.. Publicado em: 23/05/2019