Data/hora: 24/06/2024 19:21:18

Biblioteca(s): | Embrapa Gado de Leite.
Data corrente: | 04/01/2018
Data da última atualização: | 27/01/2023
Autoria: | SILVA, S. E. B.; AUAD, A. M.; MORAES, J. C.; ALVARENGA, R.; CLAUDINO, S. S.; RESENDE, T. T. de.
Afiliação: | S.E.B. Silva, UFLA; ALEXANDER MACHADO AUAD, CNPGL; J. C. Moraes, UFLA; R. Alvarenga, UFLA; S. S. Claudino; TIAGO TEIXEIRA DE RESENDE, CNPGL.
Título: | Biological performance and preference of Mahanarva spectabilis (hemiptera: cercopidae) for feeding on different forage plants.
Ano de publicação: | 2017
Fonte/Imprenta: | Journal of Economic Entomology, v. 110, n. 4, p. 1877-1885, 2017.
Idioma: | Inglês
Conteúdo: | Abstract The performance and preference of Mahanarva spectabilis (Distant) for feeding on different forage species were evaluated. The survival and duration of the nymphal period, longevity and fertility of adults, and food preferences (free choice) of adults of M. spectabilis were evaluated in a greenhouse trial, and food preferences of adults were also evaluated in laboratory tests without a choice of host plant. In the field, the numbers of plants with spittle masses were evaluated by forage sampling. Lower levels of nymph survival were observed in the greenhouse on Molasses grass, Jaraguá, Tanzânia, and Makueni. The duration of the nymphal period did not differ significantly on different forage species; however, the longevity and fertility of adults were significantly lower on Cynodon and Brachiaria decumbens Stapf. In the free-choice preference test, adult insects were attracted most strongly to B. decumbens and Jaraguá, with intermediate attraction to Brachiaria brizantha (Hochst ex A. Rich) Stapf and Pioneiro. In the test without host choice, insects exhibited lower excretion rates on Tanzânia, Cynodon, Jaraguá, B. brizantha, and Molasses grass, and those fed on Cynodon, Jaraguá, Molasses grass, and Makueni also exhibited reduced body mass. In the field, Pioneiro had the highest number of spittle masses, followed by Roxo de Botucatu. Thus, Molasses grass, Tanzânia, Makueni, and Jaraguá plants are less suitable food sources for M. spectabilis nymphs and adults. Additionally, although Jaraguá was less favorable to nymphs, it attracted food-seeking adults; hence, these plants have potential for use in control of M. spectabilis.
Palavras-Chave: | Biology; Plant resistance; Spittlebug.
Thesaurus Nal: | feeding behavior.
Categoria do assunto: | O Insetos e Entomologia
Registro original: | Embrapa Gado de Leite (CNPGL)
Exemplares: | CNPGL - (23830-1) - UPC - AP - DD -  -  -  - DIS