Occurrence of Diaretiella rapae (Mc´Intosh, 1855) (Hymenoptera: Aphidiidae) Parasitising Lipaphis erysimi (Kaltenbach, 1843) and Brevicoryne brassicae (L. 1758) (Homoptera: Aphididae) in Brassica napus in Mato Grosso do Sul

Abstract

ABSTRACT

Species of Lepidoptera defoliators of Eucalyptus as new host for the parasitoid Palmistichus elaeisis (Hymenoptera: Eulophidae)

“…Parasitoids are important due to their great diversity and high control levels that they inflict on host populations (Mussury and Fernandes, 2002;Pratissoli et al, 2005). Most of these natural enemies belong to the orders Hymenoptera and Diptera with, approximately, 50.000 species described for the first order (Godfray, 1994;Van Driesche and Bellows, 1996).…”

Aphid parasitoids (Hymenoptera, Braconidae, Aphidiinae) and their associations related to biological control in Brazil

“…After this period, very limited records focusing the postcolonization and the host range of aphid parasitoids on some cultivated plants were found in Brazil SousaSilva et al, 1998;Lara et al 1999;Fernandes et al 2000;Mendes et al, 2000;Pinto et al 2000;Cividanes 2002;Mussury & Fernandes. 2002;Ronquim et al 2004;Zanini et al 2006), and still fewer were found on ornamentals (Peronti 1999;Imenes et al 2002;Carvalho et al 2006).…”

Relación del número de individuos de Brevicoryne brassicae con la temperatura y con su parasitoide Diaretiella rapae en brócoli en el Bajío, México

“…In another study in the Bajio, Hernández et al (1990) reported that the percentage of parasitism of D. rapae in B. brassicae was 70%, while the percentage of parasitism in this study were lower; it is possible that the density of plants with aphids are not enough, as pointed out Mussury and Fernandes (2002), who said that when you have more than 50% of infested plants, the activity of natural enemies increases markedly. D. rapae is a natural enemy with great potential in the integrated pest management, it can be used in conjunction with pyrethroids in reducing the incidence of B. Brassica with an additive effect on aphid populations (Desneux et al, 2005).…”

“…Mussury and Fernandes (2002) reported an average cuando D. rapae se reproduce en otras especies de pulgones, la capacidad de parasitar a B. brassicae disminuye, ellos sugieren que el hospedero ancestral de este parasitoide es el pulgón cenizo de las crucíferas.…”