Harmful Insect
Mostrando 1-12 de 21 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. Development of Oryzophagus oryzae (Costa Lima) in rice cultivars
RESUMO Cultivares resistentes a insetos são essenciais à melhoria do manejo de pragas como Oryzophagus oryzae (Coleoptera: Curculionidae), altamente prejudicial à cultura do arroz irrigado por inundação. O grau de benefício, porém, depende do tipo de resistência. Objetivou-se avaliar cultivares de arroz quanto à resistência a O. oryzae, inferindo
Pesqui. Agropecu. Trop.. Publicado em: 15/08/2019
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3. Occurrence of Conotrachelus psidii (Marshall, 1922) in Psidium cattleianum (Sabine)
ABSTRACT The guava weevil, Conotrachelus psidii (Marshall, 1922) (Coleoptera: Curculionidae), has been reported to be harmful to guava fruit, causing deterioration. However, the occurrence of this insect and resulting damage in araçazeiro Psidium cattleianum (Sabine) fruit has not yet been described. For this reason, the objective of this study was to repo
Floresta Ambient.. Publicado em: 07/01/2019
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4. INSECTICIDAL ACTIVITY OF DIENAMIDES ON CABBAGE CATERPILLAR AND BENEFICIAL INSECTS
The demand for new insecticides is increasing due to the appearance of insect populations that are resistant to currently used products. New insecticides should be efficient in controlling pests and present low toxicity to non-target organisms. Ascia monuste (Lepidoptera: Pieridae) is a destructive pest of cole vegetables, and the fire ant Solenopsis saeviss
Quím. Nova. Publicado em: 2018-04
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5. Alterações nos parâmetros biológicos de Diatraea saccharalis (Lepidoptera: Crambidae) e Cotesia flavipes (Hymenoptera: Braconidae) causadas por Nosema sp. (Microsporidia: Nosematidae) / Alterations in biological parameters of Diatraea saccharalis (Lepidoptera: Crambidae) and Cotesia flavipes (Hymenoptera: Braconidae) caused by Nosema sp. (Microsporidia: Nosematidae)
O Filo Microsporidia é composto por parasitas intracelulares obrigatórios que infectam de invertebrados a mamíferos. Alguns gêneros de microsporídeos entomopatogênicos são de extrema importância, visto que diversos estudos epizootiológicos indicam tais agentes como detentores de um papel fundamental na regulação da densidade populacional de seus h
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/04/2012
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6. Fotossíntese, crescimento e composição química em plantas de Theobroma cacao L. submetidas a diferentes concentrações de silicato de potássio e sua interação com insetos-praga / Photosynthesis, growth and chemical composition in plants of Theobroma cacao L. subjected to different concentrations of potassium silicate and its interaction with insect-pests
The control of insect pests through the use of pesticides, is still the most method used in the cultivation of cocoa. However, due to environmental issues, there need to seek new alternatives of control less harmful the environment and to humans. In this context, silicon is a nutrient that is being used in various cultures, due to its beneficial effects on p
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/02/2011
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7. Interaction of Metarhizium anisopliae (Metsch), Beauveria bassiana (Bals.) and granulovirus, the main pathogens of Diatraea saccharalis (Fabr., 1794) (Lepidoptera: Crambidae) / Interação de Metarhizium anisopliae (Metsch.), Beauveria bassiana (Bals.) e vírus da granulose, principais patógenos de Diatraea saccharalis (Fabr., 1794) (Lepidoptera: Crambidae)
The sugarcane borer, Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae) is naturally infected by various pathogens, the most important are Metarhizium anisopliae (Metsch) (Ascomycota: Clavicipitaceae), Beauveria bassiana (Bals.) (Ascomycota: Cordycipitaceae) and granulovirus. These microorganisms may coinfect the same host under field conditions
Publicado em: 2010
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8. Proposta de um protocolo para avaliação da viabilidade de conídios de fungos entomopatogênicos e determinação da proteção ao calor conferida a Beauveria bassiana e Metarhizium anisopliae pela formulação em óleo emulsionável / Establishment of a protocol to evaluate the conidial viability of entomopathogenic fungi and determination of heat protection to Beauveria bassiana and Metarhizium anisopliae by emulsifiable oil formulation
This study aimed to evaluate, under laboratory conditions, the influence of temperature and exposure time on the viability and virulence of Beauveria bassiana and Metarhizium anisopliae in suspensions prepared with pure conidia, rice plus fungus and in formulations of wettable powder and concentrated suspension in emulsifiable oil. Initially, an efficient an
Publicado em: 2010
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9. Ocorrência e bionomia de Ctenarytaina eucalypti (Maskell) (Hemiptera: Psyllidae) e seu inimigo natural Psyllaephagus pilosus Noyes (Hymenoptera: Encyrtidae) em plantas de Eucalyptus globulus / Occurrence and bionomy of Ctenarytaina eucalypti (Maskell) (Hemiptera: Psyllidae) and its natural enemy Psyllaephagus pilosus Noyes (Hymenoptera: Encyrtidae) in plants of Eucalyptus globulus.
Species of the genus Eucalyptus hosting several species of insects of the family Psyllidae. Among them, the specie Ctenarytaina eucalypti (Maskell) (Hemiptera: Psyllidae) is considered the most harmful, causing damage to culture wherever it has been introduced. To control these hemiptera phytophage, treatment with insecticides proved to be costly and unsusta
Publicado em: 2008
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10. Susceptibilidade de Digitonthophagus gazella (Fabricius : 1787) (Coleoptera: Scarabaeidae) aos reguladores de crescimento de insetos (IGRs) Diflubenzuron e Methoprene em UberlÃndia, MG
The Insect Growth Regulators are considered more selective than the conventional insecticides, are not toxic to mammals if used in the recomended dose and are easily degradable in environment. Diflubenzuron and Methoprene are IGRs from the chitin sinthesis inibithors and juvenile hormones analogs classes, respectively. These IGRs show comprovated eficience a
Publicado em: 2007
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11. Desenvolvimento das plantas, ocorrência de insetos, produção e conservação de frutos de goiabeiras sob adubações orgânica e mineral / Plant development, insect incidence, fruit yield and conservation of guava fruits under organic and mineral fertilization
The influence of mineral fertilizers and organic compost on the development of guava trees, fruit yield, insect incidence and fruit post-harvest conservation was evaluated. Also, the effects of different doses of mineral fertilization (ammonium sulphate and potassium chloride) and organic compost was studied by supplying proportions of the recommended dose (
Publicado em: 2006
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12. Como desenvolver o potencial do acaro predador Phytoseiulus macropilis para controlar o ácaro-rajado em plantas de morango? / How to realize the potential of the predatory mite Phytoseiulus macropilis to control two-spotted spider-mites in strawberry?
Biological control using naturally occurring predators has been attempted. In Brazil, field studies showed that the indigenous predatory mite Phytoseiulus macropilis (Banks) is constantly found associated with spider mites in strawberry crops in the Minas Gerais state. This predatory mite occurrence is high on abandoned strawberry fields, but on plants that
Publicado em: 2006