Data/hora: 05/06/2024 14:10:49

Provedor de dados: | Chilean Journal of Agricultural Research
País: | Chile
Título: | Mating behavior of the predator Podisus nigrispinus (Heteroptera: Pentatomidae) under exposure to neem: Comportamiento de apareamiento del depredador Podisus nigrispinus (Heteroptera: Pentatomidae) expuesto al neem
Autores: | Domingues de Oliveira,Sharrine Omari; Faria Barbosa,Wagner; Vilca Malqui,Karina Soledad; Carvalho Guedes,Raul Narciso.
Data: | 2012-12-01
Ano: | 2012
Palavras-chave: | Azadirachtin; Azadirachta indica; Biological insecticide; Natural enemy.
Resumo: | The preservation of natural enemies is one of the basic foundations for integrated pest management. Botanical insecticides have shown low impact on beneficial arthropods in relation to survival. Insecticides studies usually focus on the direct physiological effects of insecticides, whereas relatively little attention is placed on the behavioral response to exposure. A study was conducted to evaluate the effect of the botanical insecticide neem (Azadirachta indica A. Juss.; Meliaceae) on the mating behavior of the predatory stinkbug Podisus nigrispinus (Heteroptera: Pentatomidae). Unmated 5 to 7 d-old adults, separate by sex, were exposed to azadirachtin per contact on the treated surface. The treatments were composed for: untreated male and female; untreated male and treated female; treated male and untreated female; and treated male and female. Azadirachtin affected the duration of first mating (Wilcoxon test, &amp;#967;2 = 13.38, df = 3, p = 0.004), which resulted in a higher effective average time of mating (EATM50) for treatment whose only female was treated with azadirachtin. This finding points to a sublethal effect of azadirachtin on mating behavior of P. nigrispinus that may compromise its reproduction.
Tipo: | Journal article
Idioma: | Inglês
Identificador: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000400010
Editor: | Instituto de Investigaciones Agropecuarias, INIA
Formato: | text/html
Fonte: | Chilean journal of agricultural research  v.72 n.4 2012