Occurrence of Lysiphlebus testaceipes parasitizing Aphis gossypii in watermelon in the State of Rio Grande do Norte, Brazil

Abstract

II Occurrence of Lysiphlebus testaceipes parasitizing

Responses of Cereal Aphids and Their Parasitic Wasps to Landscape Complexity

“…The parasitoids captured in this study (L. testaceipes, A. colemani, and D. rapae) can parasitize a range of aphids, which occur in a several cultivated plants and weeds (Starý et al 2007, Tepa-Yotto et al 2013, Macedo et al 2010, Hollingberya et al 2012. Therefore, although aphid infestation in the fields was low, these parasitoids survived because of the presence of alternative aphid hosts.…”

“…This implies that there is a different dynamic spatial and temporal relationship between aphids and their natural enemies in tropical and temperate zones. In Brazilian fields, most studies have investigated the occurrence of aphid parasitoids in a field by measuring the number of mummies (Ronquin et al 2004, Alves et al 2005, Macedo et al 2010). However, this method severely restricts the understanding of the behavior of these natural enemies in the field.…”

Survey of the Hymenoptera Fauna in a "Caatinga" Area in the State of Rio Grande do Norte, Northeastern Brazil

“…The little that is known about Hymenoptera from Rio Grande do Norte is due to the occurrence reports in Eulophidae, Eurytomidae and Ichneumonidae (onody & Penteado-dias 2002;Fernandes et al 2012Fernandes et al , 2014a, of braconids and eulophids associated with fruit flies (araujo & zuccHi 2002;costa et al 2005), of parasitic braconids of the leafminer fly (araujo et al 2007) and of aphids (Macedo et al 2010). Some authors have made checklists, such as the species of Apidae (zanella 2000; silva 2014), Chrysididae (zanella & lucena 2014), Ichneumonoidea (sHiMbori et al 2014), Ophioninae (Ichneumonidae) (Fernandes et al 2014b) The Caatinga biome covers 10% of the Brazilian territory; with an area of nearly 844 thousand km² it is mainly located in the Northeast region of Brazil.…”

Distribuição espacial de lysiphlebus testaceipes (cresson) (hymenoptera: aphidiidae) em algodoeiro cultivado em sistema adensado.

“…De acordo com os parâmetros: média, variância e intervalo de confiança a 95 e 99% de probabilidade, estimados do número de insetos encontrados em cada sistema de cultivo (Tabela 1). Brasil parasitando Aphisgossypii (Bandeira et al, 2010;Macedo et al, 2010). Pelo fato da ocorrência desse inimigo natural ter sido considerada muito abundante em todos os espaçamentos (Tabela 2), os modelos de padrão de dispersão foram aplicados para este inimigo natural.…”