Data/hora: 22/06/2024 00:46:19

Biblioteca(s): | Embrapa Semiárido.
Data corrente: | 02/04/2014
Data da última atualização: | 23/02/2015
Autoria: | OLIVEIRA, M. D.; TORRES, C. S. A. S.; TORRES, J. B.; OLIVEIRA, J. E. de M.
Afiliação: | MARTIN D. OLIVEIRA, UFRPE; CHRISTIAN S. A. SILVA TORRES, UFRPE; JORGE B. TORRES, UFRPE; JOSE EUDES DE MORAIS OLIVEIRA, CPATSA.
Título: | Population growth and within-plant distribution of the striped mealybug Ferrisia virgata (Cockerell) (Hemiptera, Pseudococcidae) on cotton.
Ano de publicação: | 2014
Fonte/Imprenta: | Revista Brasileira de Entomologia, São Paulo, v. 58, n. 1, p. 71-76, 2014.
DOI: | 10.1590/S0085-56262014000100012
Idioma: | Inglês
Conteúdo: | Population growth and within-plant distribution of the striped mealybug Ferrisia virgata (Cockerell) (Hemiptera, Pseudococcidae) on cotton. The striped mealybug, Ferrisia virgata (Cockerell) (Hemiptera, Pseudococcidae), is a widely distributed and polyphagous pest species, which naturally occurs on cotton plants in Brazil. This study evaluated the establishment and population growth as well as the within-plant distribution of F. virgata on four cotton cultivars: CNPA 7H (white fibers), BRS Verde, BRS Safira, and BRS Rubi (colored fibers). The experiment was conducted in a complete randomized design with four treatments (cultivars) and 18 replications of each. Thus, cotton plants of each cultivar were infested with 100 newly hatched nymphs of F. virgata. The number of adult female mealybugs and the total number of mealybugs per plant were quantified, respectively, at 25 and 50 days after infestation. The developmental and pre-reproductive periods were also determined. Furthermore, we verified the distribution of F. virgata on the plant parts at 25 and 50 days after infestation. Ferrisia virgata showed similar growth of 412-fold in the four cotton cultivars studied. Also, the nymphs were spread on infested leaves; the secondgeneration nymphs were spread and established in all plant parts. Our results characterize F. virgata as having much potential as an important cotton pest in Brazil.
Palavras-Chave: | Suscetibilidade do hospedeiro.
Thesagro: | Algodão; Cochonilha; Gossypium Hirsutum; Inseto; Planta.
Thesaurus Nal: | Cotton; Ferrisia virgata.
Categoria do assunto: | O Insetos e Entomologia
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/100471/1/Eudes-2014.pdf
Registro original: | Embrapa Semiárido (CPATSA)
Exemplares: | CPATSA - (52008-1) - UPC - AP - DD -  -  -  - DIS