Data/hora: 01/06/2024 12:20:31

Provedor de dados: | 42
País: | Brazil
Título: | Effect of temperature on the reproduction of Bracon vulgaris Ashmead (Hymenoptera: Braconidae), a parasitoid of the cotton boll weevil
Autores: | Ramalho,Francisco S.; Wanderley,Paulo A.; Malaquias,José B.; Fernandes,Francisco S.; Nascimento,Antônio R.B.; Zanuncio,José C.
Data: | 2011-09-01
Ano: | 2011
Palavras-chave: | Ectoparasitoid; Anthonomus grandis Boheman; Biology; Life and fertility tables.
Resumo: | This research studied the effect of temperature on the reproduction of Bracon vulgaris Ashmead, an ectoparasitoid of cotton boll weevil ( Anthonomus grandis Boheman) at constant temperatures of 20, 25 and 30ºC, 70 ± 10% RH and a photophase of 14 h. Females of the parasitoid produced a greater number of eggs when exposed to 25ºC (124.65 eggs) in relation to those exposed to 20 (43.40 eggs) and 30ºC (49.60 eggs). The number of parasitized larvae per female of B. vulgaris at 25ºC (71.75) was greater than at 20ºC (31.40) and 30ºC (25.15). The daily intrinsic rates of increase (r m) were - 0.007 at 20ºC, 0.07 at 25ºC and 0.03 at 30ºC, revealing that the temperature of 25ºC produced increases of 1,100 and 133% in the value r m in relation to temperatures of 20 and 30ºC, respectively. In programs of biological control of the boll weevil using innoculative releases, adult females of B. vulgaris with approximately five (at 25 or 30ºC) or 20 day old (at 20ºC) should be used; when using innundative releases, adult females of B. vulgaris , with ages between 11 and 31; 9 and 29 or 3 and 14 days, respectively, at 20, 25 or 30ºC should be used.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000300020
Editor: | Academia Brasileira de Ciências
Relação: | 10.1590/S0001-37652011005000026
Formato: | text/html
Fonte: | Anais da Academia Brasileira de Ciências  v.83 n.3 2011
Fonte: | info:eu-repo/semantics/openAccess