Results 131 to 140 of about 376 (165)

Coffee leaf miner severity annotation

2020
Coffea ...
Juliano de Paula Gonçalves, Emerson M. Del Ponte   +1 more
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Prediction of outbreaks of coffee leaf-miners on Kilimanjaro

Bulletin of Entomological Research, 1969
Analysis of the results obtained from suction-trap catches of the coffee leaf-miners, Leucoptera meyricki Ghesq. and L. caffeina Wshbn. on an unsprayed block of coffee at the Coffee Eesearch Station, Lyamungu, on the slopes of Kilimanjaro, are given.By thermal summation methods it was possible to delimit successive generations of moths with some degree
M. Bigger, R. G. Tapley
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Development of Coffee Trees Resistant to Leaf Miner

2000
The production of coffee in Brazil reached 34 million bags in 1999 being 29,5 million from Coffea arabica cultivars. Since all such cultivars are susceptible to leaf miner (Perileucoptera coffeella), the main pest in Brazil, the yield and economic losses are considerable.
O. Guerreiro-Filho, H. P. Medina-Filho, L. C. Fazuoli, W. Gonçalves   +3 more
openaire   +1 more source

Plants for fitness enhancement of a coffee leaf miner parasitoid

2022
Conservative biological control aims to enhance the pest control through the conservation of natural enemies in the field, one of the strategies used is to introduce or manage plants that provide food for natural enemies. The effect of feeding resources on the fitness of a coffee leaf miner parasitoid Proacrias coffeae was assessed.
openaire   +1 more source

Phenol Contents, Oxidase Activities, and the Resistance of Coffee to the Leaf Miner Leucoptera coffeella

Journal of Chemical Ecology, 2006
We examined the role of phenolic compounds, and the enzymes peroxidase and polyphenol oxidase, in the expression of resistance of coffee plants to Leucoptera coffeella (Lepidoptera: Lyonetiidae). The concentrations of total soluble phenols and chlorogenic acid (5-caffeoylquinic acid), and the activities of the oxidative enzymes peroxidase (POD) and ...
Daniel Alves, Ramiro, Oliveiro, Guerreiro-Filho, Paulo, Mazzafera   +2 more
openaire   +2 more sources

Molecular characterization of a miraculin-like gene differentially expressed during coffee development and coffee leaf miner infestation

Planta, 2010
The characterization of a coffee gene encoding a protein similar to miraculin-like proteins, which are members of the plant Kunitz serine trypsin inhibitor (STI) family of proteinase inhibitors (PIs), is described. PIs are important proteins in plant defence against insects and in the regulation of proteolysis during plant development.
Costa Mondego, Jorge Mauricio, Duarte, Melina Pasini, Kiyota, Eduardo, Martinez, Leandro, Camargo, Sandra Rodrigues de, De Caroli, Fernanda P. UNIFESP, Capela Alves, Beatriz Santos, Carmello Guerreiro, Sandra Maria, Oliva, Maria Luiza Vilela UNIFESP, Guerreiro-Filho, Oliveiro, Menossi, Marcelo   +10 more
openaire   +3 more sources

Arboreal Ant Abundance and Leaf Miner Damage in Coffee Agroecosystems in Mexico

Biotropica, 2008
ABSTRACTShaded coffee agroecosystems traditionally have few pest problems potentially due to higher abundance and diversity of predators of herbivores. However, with coffee intensification (e.g., shade tree removal or pruning), some pest problems increase.
De la Mora, Aldo, Livingston, George, Philpott, Stacy M.   +2 more
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Mineral Nutrition of Coffee. Preliminary Results with the Leaf Analysis Technique

East African Agricultural and Forestry Journal, 1961
(1961). Mineral Nutrition of Coffee. Preliminary Results with the Leaf Analysis Technique. East African Agricultural and Forestry Journal: Vol. 27, No. 1, pp. 1-9.
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Hidden target, hidden effects: chlorantraniliprole on the coffee leaf miner (Leucoptera coffeella)

Ecotoxicology
Agricultural insecticide usage presents a complex challenge, particularly when addressing hidden targets such as concealed pest species. Typically, insecticide spraying targets either the host plant or the soil substrate, reaching the target when the pests move or feed, yet their vulnerability when concealed remains low.
D. S. Souza, C. A. D. Nascimento, J. Broêtto, M. T. C. S. Resende, L. S. Carneiro, M. A. Castellani, J. E. Serrão, R. N. C. Guedes   +7 more
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The Leucoptera Leaf Miners of Coffee on Kilimanjaro. I.—Leucoptera coffeella, Guér

Bulletin of Entomological Research, 1948
Two leaf miners of coffee, Leucoptera coffeella and L. caffeina are present in the Kilimanjaro and Usambara districts of Tanganyika. The life-histories of L. coffeella and its parasites and a study made during 1937–40 of the populations of the host and its parasites in the Kilimanjaro area in both unshaded and shaded coffee are described.
openaire   +2 more sources