Rearing of Thyrinteina arnobia (Lepidoptera: Geometridae) on guava and Eucalyptus in laboratory

Abstract

ABSTRACT

Population Dynamics of Lepidoptera Pests in Eucalyptus urophylla Plantations in the Brazilian Amazonia

“…The first one, abundant and frequent in other regions of Brazil [7,9,10], showed a similar trend, as the second most collected, and exceeding T. arnobia in some sites, suggesting that it deserves attention in monitoring. The same should be applied to T. arnobia, with a history of outbreaks in eucalyptus and one of the most important defoliators of this plant [9,19]. Psorocampa denticulata showed low abundance of occurrence.…”

Development and reproduction of Podisus nigrispinus (Hemiptera: Pentatomidae) fed with Thyrinteina arnobia (Lepidoptera: Geometridae) reared on guava leaves

“…However, Holtz et al (2003) evaluated the effect of these substances on T. arnobia and found that these compounds did not affect the development of this caterpillar on eucalyptus, but others substances that come from guava could affect their development. Santos et al (2000) and Oliveira et al (2005) found that T. arnobia had better development on guava leaves, which could be considered as the best host for it, while eucalyptus leaves had poor digestibility and nutritional quality which reduced the development of this caterpillar. For this reason, when T. arnobia was reared with eucalyptus leaves, probably the larvae had a lower quality and therefore affected the development of the predator.…”

“…and Eugenia spp. (Oliveira et al, 2005). Outbreaks of this species in forest plantations have been controlled, in some situations, with insecticides.…”

Desenvolvimento e reprodução de Dirphia moderata (Lepidoptera: Satutniidae) em Eucalyptus cloeziana e Psidium guajava em laboratório

“…Isso pode ser reforçado pelo fato de esse inseto ter sido criado com E. cloeziana ou P. guajava por mais de uma geração, o que sugere ter havido adaptação alimentar das lagartas, que foram retiradas de plantas de eucalipto e criadas em folhas de goiabeira. No entanto, espécies desfolhadoras de eucalipto podem ter melhor desenvolvimento em hospedeiros nativos, pois Thyrinteina arnobia (Stoll, 1782) (Geometridae), criada por 14 gerações em folhas de E. grandis ou P. guajava, apresentou melhor desenvolvimento e reprodução com esse último hospedeiro (OLIVEIRA et al, 2005). Thyrinteina arnobia e outras espécies de insetos se encontram em processo de adaptação a plantas de eucalipto ao fugirem da pressão exercida por barreiras físicas e químicas que podem existir nas mirtáceas nativas brasileiras (HOLTZ et al, 2003b).…”