Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1003378
Research center of Embrapa/Collection: Embrapa Meio Ambiente - Artigo em periódico indexado (ALICE)
Date Issued: 2014
Type of Material: Artigo em periódico indexado (ALICE)
Authors: GALVAO, J. A. H.
BETTIOL, W.
Additional Information: JOSE ABRAHAO HADDAD GALVAO, CNPMA; WAGNER BETTIOL, CNPMA.
Title: Effects of UV-B radiation on Lecanicillium spp., biological control agents of the coffee leaf rust pathogen.
Publisher: Tropical Plant Pathology, Brasília, DF, v. 39, n. 5, p. 392-400, 2014.
Language: en
Keywords: UV-B
Coffee.
Description: Coffee leaf rust is the main disease of coffee and its causal agent is naturally hyperparasited by Lecanicillium lecanii, indicating its potential for biocontrol. Ultraviolet-B (UV-B) radiation is an important factor that interferes on application of biocontrol agents, and Lecanicillium can be affected by UV-B. The objective of this work was to evaluate the effects of UV-B on Lecanicillium isolates and on its capacity to colonize rust lesions. There were variations among Lecanicillium strains in sensitivity to UV-B radiation, causing inactivation and delayed spore germination. The most tolerant strain (CCMA-1143) had LD50=1.63 kJ/m2 of UV-B. The incidence and colonization of Lecanicillium on coffee leaf rust lesions were influenced by the dose of UV-B radiation, and were increased when the isolate CCMA-1143 was sprayed on rust lesions. The effects of UV-B should be considered on efficacy studies for the development of biopesticides.
Thesagro: Hemileia vastatrix
Ferrugem
Café
Controle biológico
NAL Thesaurus: Climate change
Biopesticides
Ultraviolet radiation
Leaf rust
Biological control
Lecanicillium.
Data Created: 2014-12-22
Appears in Collections:Artigo em periódico indexado (CNPMA)

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