Efeito de repelência do inseticida deltamethrin sobre insetos de raças resistentes e suscetíveis de Rhyzopertha dominica (F.) (Coleoptera, Bostrichidae) em grãos de trigo armazenado

Walking stability of Rhyzopertha dominica (Fabricius, 1792) (Coleoptera: Bostrichidae)

“…In an attempt to simulate the physical conditions of a storage structure are used glassware and recipients that facilitate handling in the laboratory, observing (at the time of its selection) conditions such as material used (glass bottle/jar, Petri-dish, plastic pot/recipient, raffia bag), size of the recipient/arena (height, width, length, diameter), information which can be confirmed in several studies (Aguiar et al, , 2010Beckel et al, 2005;Belchol and Teixeira, 2007;Fontes and Arthur, 1994;Gonçalves et al, 2006Gonçalves et al, , 2007Moino Junior and Alves, 1997;Oliveira et al, 2003Oliveira et al, , 2006Pereira et al, 2003;Silva et al, 2003).…”

“…Both species, R. dominica and T. castaneum are the reasons for studies seeking to evaluate responses to the use of insecticides (Aguiar et al, 2010;Furiatti et al, 1999;Pereira et al, 1997Pereira et al, , 2003Pimentel et al, 2012;Pinto Junior et al, 1997;Santos et al, 2011), control measures (Gonçalves et al, 2000(Gonçalves et al, , 2007Mariano et al, 2006), forms of repellency (Beckel et al, 2004(Beckel et al, , 2005Parvin et al, 2012) and damage caused (Alencar et al, 2011;Silva et al, 2003). In general, these studies present the common fact that they are conducted under simulated conditions in the laboratory, testing the species in the different situations observed in the storage units.…”

“…Rhyzopertha dominica and T. castaneum have been studied under different climatic conditions, with variations as needed (Aguiar et al, , 2010Beckel et al, 2005;Fontes and Arthur, 1994;Gonçalves et al, 2006Gonçalves et al, , 2007Moino Junior and Alves, 1997;Oliveira et al, 2003Oliveira et al, , 2006Silva et al, 2003), and care with the method of simulating the physical structure of the storage unit should be taken into consideration so that the results may express the condition closest to the actual condition (Beckel et al, 2005;Gonçalves et al, 2006Gonçalves et al, , 2007Ortiz et al, 2012;Pacheco et al, 2009).…”

“…Measures taken to guarantee that these Coleoptera are able to move are those obtained from experimental experience with the insect, for example, always maintaining a thin layer of grain or bran to facilitate its displacement, or covering the surface of the arena with paper or cloth. However, existing studies that relate the movement of insects in the stored product only consider the fact that they are already in contact with the grain mass in the arena (Beckel et al, 2005;Oliveira et al, 2003Oliveira et al, , 2006. There are no studies that discuss the behavior of adults on flat and smooth surfaces, to which they may be submitted and required to walk or move in laboratory studies.…”

Repelência e atividade inseticida de pós vegetais sobre Zabrotes subfasciatus Boheman em feijão-fava armazenado

“…às principais classes de inseticidas utilizados para tal fim, tais como piretróides e organofosforados (Silva et al, 2013;Ribeiro et al, 2003;Beckel et al, 2002;Beckel et al, 2005), sendo um grande problema, tanto para os agricultores, quanto para as indústrias que necessitam desenvolver novos sítios alvos (Perry et al, 2011).…”