Data/hora: 12/06/2024 00:39:36

Biblioteca(s): | Embrapa Gado de Leite.
Data corrente: | 10/01/2020
Data da última atualização: | 06/02/2024
Autoria: | ALVARENGA, R.; AUAD, A. M.; MORAES, J. C.; SILVA, S. E. B.
Afiliação: | Roberta Alvarenga; ALEXANDER MACHADO AUAD, CNPGL; Jair C Moraes; Sandra EB Silva.
Título: | Do silicon and nitric oxide induce resistance toMahanarva spectabilis(Hemiptera: Cercopidae)in forage grasses?
Ano de publicação: | 2019
Fonte/Imprenta: | Pest Management Science, v. 75, n. 12, p. 3282-3292, 2019.
DOI: | https://doi.org/10.1002/ps.5450
Idioma: | Inglês
Conteúdo: | BACKGROUND -Great efforts have been made to identify grasses that are resistant to spittlebugs (Hemiptera: Cercopidae). However, the time required to develop and launch new cultivars is relatively long. The employment of resistance inducers is a current strategy that may be useful for the control of insect pests. This analysis evaluates the feasibility of using the chemical inducers silicon and nitric oxide to increase spittlebug resistance based on changes in forage grass vegetative characteristics and the biological traits of Mahanarva spectabilis (Distant, 1909). RESULTS -Mahanarva spectabilis nymphs and adults can cause significant damage to forage grasses. Furthermore, silicon and nitric oxide inducers were not sufficient to lessen this damage by positively influencing the growth and development of forage grasses. These inducers did not negatively alter the biological parameters of M. spectabilis or diminish its population. However, phenolic compound concentrations increased when forage grasses were treated with silicon or attacked by adult insects, but this parameter was not useful to predict spittlebug resistance. This fact suggests that the physiological and biochemical changes caused by silicon should be further studied. CONCLUSION -The current analysis demonstrated that application of the chemical inducers silicon and nitric oxide is currently not a viable strategy for the effective and economic management of M. spectabilis on Brachiaria ruziziensis, Pennisetum purpureum and Digitaria sp. © 2019 Society of Chemical Industry
Palavras-Chave: | Chemical inducers; Resistance induction; Sodium nitroprusside; Spittlebug.
Thesaurus Nal: | Phenolic compounds.
Categoria do assunto: | O Insetos e Entomologia
Registro original: | Embrapa Gado de Leite (CNPGL)
Exemplares: | CNPGL - (24962-1) - UPC - AP - DD -  -  -  - DIS