Results 51 to 60 of about 1,258 (207)

Microsatellite markers in analysis of resistance to coffee leaf miner in Arabica coffee

open access: yesPesquisa Agropecuária Brasileira, 2011
The objective of this work was to analyze coffee (Coffea arabica) genotypes resistant to the coffee leaf miner (Leucoptera coffeella) using microsatellite markers.
Gabriella Santos Pereira   +6 more
doaj   +1 more source

Alternative treatments diminish oviposition and viability of Leucoptera coffeella (Lepidoptera: Lyonetiidae) eggs and larvae on coffee plants [PDF]

open access: yes, 2021
The effects of alternative inputs on the oviposition and viability of Leucoptera coffeella eggs and larvae were evaluated. Under controlled conditions, coffee seedlings cv.
Androcioli, Humberto Godoy   +6 more
core   +2 more sources

DANO FOLIAR EM CAFÉ ARÁBICA CAUSADO PELO BICHO MINEIRO

open access: yesRevista UniVap, 2017
 O objetivo deste trabalho foi avaliar o dano foliar provocado pela ocorrência de bicho-mineiro em cafeeiros da espécie arábica, variedade Catuaí Amarelo 493.
Sandy Queiroz Espinoso   +6 more
doaj   +1 more source

Ocorrência e identificação de vespas predadoras (Hymenoptera: vespidae) em cafezal orgânico em formação (Coffea arabica L) e sua relação com a predação do bicho mineiro, Leucoptera coffeella (GUÉR.-MÈNEV., 1942)(Lepidoptera: Lyonetiidae). [PDF]

open access: yes, 2011
Muitos estudos têm mostrado que o movimento de artrópodes benéficos das margens de entorno para dentro das plantações e maiores níveis de controle biológico são geralmente observados em culturas que são vizinhas a vegetação nativa.
MARAFELI, P. de P.   +4 more
core  

Insecticide use and organophosphate resistance in the coffee leaf miner Leucoptera coffeella (Lepidoptera: Lyonetiidae) [PDF]

open access: yesBulletin of Entomological Research, 2002
AbstractIncreasing rates of insecticide use against the coffee leaf miner Leucoptera coffeella (Guérin-Méneville) and field reports on insecticide resistance led to an investigation of the possible occurrence of resistance of this species to some of the oldest insecticides used against it in Brazil: chlorpyrifos, disulfoton, ethion and methyl parathion.
D B, Fragoso   +4 more
openaire   +2 more sources

Leaf Extracts of Coffea racemosa Inhibit Trypsin Activity and Affect Larval Development in Spodoptera frugiperda and Diatraea saccharalis

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
Leaf extracts of Coffea racemosa inhibit digestive trypsins and impair the development of two major lepidopteran pests, Spodoptera frugiperda and Diatraea saccharalis. While both species showed significant enzymatic inhibition, biological responses differed markedly. D. saccharalis exhibited high mortality, whereas S.
Nicole de Paula Souza   +3 more
wiley   +1 more source

Spray deposition and chemical control of the coffee leaf-miner with different spray nozzles and auxiliary boom [PDF]

open access: yesEngenharia Agrícola, 2016
The coffee crop requires great spray ability to penetrate into the plant canopy during the application of pesticides. The aim of this study was to evaluate the spray deposition on leaves of coffee plants and the chemical control of the leaf miner ...
JEFFERSON GITIRANA NETO   +1 more
doaj   +2 more sources

Impactos potenciais das mudanças climáticas sobre a distribuição geográfica do número de gerações do bicho-mineiro-do-cafeeiro (Leucoptera coffeella) no Brasil. [PDF]

open access: yes, 2013
O presente trabalho teve como objetivo avaliar o impacto potencial das mudanças climáticas na distribuição geográfica do número de gerações do bicho-mineiro-do-cafeeiro (Leucoptera coffella) para o Brasil, baseando-se nas condições climáticas futuras ...
GHINI, R., HAMADA, E., MARÇAL, G. G.
core  

Associação entre características da parte aérea e do sistema radicular em mudas de guaranazeiro por correlações canônicas. [PDF]

open access: yes, 2016
Este trabalho teve como objetivo quantificar o grau de asociação entre variáveis de parte aérea e de raízes em mudas clonadas de guaranazeiro, utilizando-se correlações canônicas, a fim de aperfeiçoar o procedimento de seleção de mudas para garantir o ...
ATROCH, A. L.   +2 more
core   +1 more source

New records and new species of Miracinae (Hymenoptera: Braconidae) from Australia and Papua New Guinea, with a key to world Mirax species

open access: yesAustral Entomology, Volume 65, Issue 1, February 2026.
Abstract The genera of Miracinae, currently in something of a state of flux, are discussed with respect to their morphological and molecular attributes. Centistidea Rohwer, 1914 is treated provisionally as a valid genus, distinct from Mirax Haliday, 1833, based partly on propodeal morphology, though this is acknowledged to be an unstable character ...
Zhen Liu   +2 more
wiley   +1 more source

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