Efeitos de remanescentes de Mata Atlântica no controle biológico de Euselasia apisaon (Dahman) (Lepidoptera: Riodinidae) por Trichogramma maxacalii (Voegelé e Pointel) (Hymenoptera: Trichogrammatidae)

Murta, Aline F.; Ker, Fabrício Thomáz de Oliveira; Costa, Dalbert B.; Espírito-Santo, Mário M.; Faria, Maurício Lopes de

doi:10.1590/s1519-566x2008000200019

Cited by 17 publications

(12 citation statements)

References 17 publications

(10 reference statements)

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“…ns = não significativo; n = 24. positivos da presença de remanescentes de vegetação nativa na abundância de parasitóides (Bragança et al 1998a, Freitas et al 2002, dall'oglio et al 2003 e nas taxas de parasitismo de pragas em eucaliptais (Murta et al 2008). da mesma forma, Sperber et al (2004) verificaram influência positiva da riqueza de árvores de vegetação remanescente em plantios de cacau (Theobroma cacao, Sterculiaceae) sobre a riqueza de famílias de parasitóides (Braconidae, Ichneumonidae, Encyrtidae, Scelionidae, entre outros).…”

Section: Discussionunclassified

“…Esses autores sugerem que o controle do inseto seja obtido a partir de um programa de manejo integrado de pragas (MIP), considerando as interações de G. brimblecombei com o ambiente e com outros organismos. Uma estratégia que pode ser inserida no MIP é a manutenção da diversidade de espécies vegetais nativas no agroecossistema, que tem demonstrado efeitos na diminuição da abundância de pragas (Altieri 1999, Andow 1991, Bragança et al 1998b, Murta et al 2008, Zanuncio et al 1998. Com base nessas informações e na descoberta recente de G. brimblecombei, o presente trabalho teve por objetivo comparar a abundância desse inseto em diferentes clones de eucalipto (E. urophylla x E. camaldulensis -"Urocam" e E. urophylla x E. grandis -"Urograndis") e entre as superfícies foliares desses clones.…”

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Efeito da estrutura da paisagem e do genótipo de Eucalyptus na abundância e controle biológico de Glycaspis brimblecombei Moore (Hemiptera: Psyllidae)

et al. 2010

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Effects of Landscape Structure and Eucalyptus Genotype on the Abundance and Biological Control ofGlycaspis brimblecombei Moore (Hemiptera: Psyllidae)ABSTRACT -Glycaspis brimblecombei Moore is an Australian native pest of Eucalyptus detected in Brazil in 2003. Since then, it has spread fast and colonized plantations in several states of the country. This study aimed to investigate the influence of cerrado remnants on the abundance and biological control of G. brimblecombei. We placed yellow sticky card traps to capture insects in four plantations of hybrid clones of Eucalyptus urophylla x Eucalyptus grandis ("Urograndis") and four plantations of E. urophylla x Eucalyptus camaldulensis ("Urocam"). Traps were placed in three areas of these plantations: center, border with cerrado and border without cerrado. We also collected leaves from the same clones to estimate psyllid egg and lerp abundance. The abundance of G. brimblecombei was lower in the plantation-cerrado border, and the inverse pattern was observed for microhymenopterans. The leaf abaxial surface showed a higher abundance of eggs and nymphs, probably as a consequence of a lower parasitism rate and mechanical removal by wind and rain. Egg number was higher on Urograndis than in Urocam clones, but the number of psyllid lerps was higher in the latter. Thus, the establishment of first instars is probably a critical event to psyllid infestation, and these differences may be caused by morphological, anatomical and biochemical leaf features of distinct clones. Our results suggest that the maintenance of native vegetation around plantations is a promising management practice to promote the natural biological control of G. brimblecombei, a strategy that would also enhance the preservation of cerrado remnants.

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Efeito da estrutura da paisagem e do genótipo de Eucalyptus na abundância e controle biológico de Glycaspis brimblecombei Moore (Hemiptera: Psyllidae)

et al. 2010

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“…The majority of Eucalyptus spp. pests in Brazil originate from native plants of the family Myrtaceae (Oliveira et al, 2000;Rapley et al, 2004;Withers et al, 2011), but their occurrence may be reduced by improving the environmental stability of homogeneous plantations (Murta et al, 2008;Dall'Oglio et al, 2013;Macedo-Reis et al, 2013). This may be achieved by increasing the populations of the mesofauna, bird fauna, microbiota, and entomofauna, which have important components for biological control (Axmacher et al, 2004;Barlow et al, 2008;Hawes et al, 2009).…”

Section: Resultsmentioning

confidence: 99%

“…The reduction of species homogeneity, with the preservation of the remnants of the native vegetation in Eucalyptus spp. plantations (Cunningham et al, 2005;Hawes et al, 2009;Macedo-Reis et al, 2013), represents an important ecological principle for pest management (Pereira et al, 2001;Murta et al, 2008;Ribeiro et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Sarsina violascens spatial and temporal distributions affected by native vegetation strips in eucalyptus plantations

Zanúncio

Tavares

Ramalho

et al. 2016

Pesq. agropec. bras.

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-The objective of this work was to evaluate spatial and temporal distributions of Sarsina violascens (Lepidoptera: Noctuidae: Lymantriinae) in two Eucalyptus cloeziana plantations, one with native vegetation strips (WNVS) and another without them (ONVS). Adults were collected with light traps, which were installed: inside an area of native vegetation (Cerrado), 100 m from the edge; at the contact zone between the native vegetation area and the E. cloeziana plantation; inside the E. cloeziana plantation, 250 m from the edge; at the central part of the native vegetation strip, around 500 m from the edge (WNVS) or in the contact zone between two E. cloeziana compartments (ONVS); and inside the E. cloeziana plantation, 500 m from the edge. The number of S. violascens adults collected was 240 in the system WNVS and 1,378 in the system ONVS. The lower number of individuals in the system WNVS was probably due to favored biological control provided by higher species richness with the use of native vegetation strips. These strips, intermingled with E. cloeziana plantations, allow a higher proportion of native forest in the landscape and can help to reduce S. violascens infestations.

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“…De modo geral, o aumento da diversidade ambiental aumenta as chances de se encontrar inimigos naturais das pragas de cultivos, o que ocorre em plantios de Eucalyptus próximos a fragmentos de mata , Santos et al 2002, Murta et al 2008.…”

Section: Resultsunclassified

Sobrevivência diferencial de pupas de Euselasia apisaon Dahman (Lepidoptera: Riodinidae) em plantas de sub-bosque nos plantios de Eucalyptus de Belo Oriente, MG

Sousa¹,

Faria²,

Latini³

2010

Neotrop. entomol.

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-Herbivorous insects may attack eucalyptus causing economic losses. One of these pests is the moth Euselasia apisaon Dahman, a key pest in the basin of middle Rio Doce. Here we studied the survival of pupae of this moth in Eucalypts and in understorey plants and tested the hypotheses: i) live pupae are more abundant in plants of the understorey than in eucalyptus, ii) there is no difference between the abundance of pupae in different plants of the understorey. We sampled three areas cultivated with eucalyptus in Belo Oriente, MG, and samples were taken in five plots each area, getting five branches of each plant and of five eucalyptus trees that bordered the plot. The proportion of live and dead pupae and the mortality rate were estimated. The abundance of live pupae was higher in the understorey and the mortality rate of pupae was the same among different families of plants of the understorey. It is possible the larger available leaf area of understorey plants justify the greater abundance of live pupae in this habitat, however, avoidance of feeding habitat to finish the life cycle is also a possible explanation. Mortality rate in plants of the understorey points to an equal pressure of natural enemies on the pupae. These appointments help us to understand the dynamics of pests in eucalyptus plantations, providing important information to support actions against pests in natural environments. O lepidóptero apresenta cinco estádios larvais, com duração média total de 28 dias (Santos et al 1993). As suas larvas são gregárias, locomovendo-se enfileiradas ou agrupadas em semi-círculos e o seu período de pupa dura cerca de seis dias, ocorrendo no tronco de Eucalyptus ou nas plantas do sub-bosque (Santos et al 1996). Dada a grande voracidade que as lagartas de E. apisaon apresentam (Santos et al 1993), é possível que em surtos da praga as pupas localizadas longe dos sítios de alimentação tenham maior probabilidade de sobrevivência do que as pupas localizadas nos sítios de alimentação. Nessas situações, há maior risco de queda acentuada das folhas de Eucalyptus e consequente exposição das pupas a predadores.A ação de inimigos naturais é importante no controle biológico de pragas (Snyder & Ives 2003 e é possível que ela seja maior em Eucalyptus, sítio de alimentação das lagartas, do que nas plantas do sub-bosque, já que as lagartas representam um montante de recursos concentrado em Eucalyptus. De certo modo, se as lagartas puparem mais frequentemente no sub-bosque, então podese propor que esse habitat representa um refúgio para a sua população (MacArthur 1958), tornando-as menos disponíveis a seus predadores, aumentando, consequentemente, sua taxa de sobrevivência.

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Efeitos de remanescentes de Mata Atlântica no controle biológico de Euselasia apisaon (Dahman) (Lepidoptera: Riodinidae) por Trichogramma maxacalii (Voegelé e Pointel) (Hymenoptera: Trichogrammatidae)

Cited by 17 publications

References 17 publications

Efeito da estrutura da paisagem e do genótipo de Eucalyptus na abundância e controle biológico de Glycaspis brimblecombei Moore (Hemiptera: Psyllidae)

Efeito da estrutura da paisagem e do genótipo de Eucalyptus na abundância e controle biológico de Glycaspis brimblecombei Moore (Hemiptera: Psyllidae)

Sarsina violascens spatial and temporal distributions affected by native vegetation strips in eucalyptus plantations

Sobrevivência diferencial de pupas de Euselasia apisaon Dahman (Lepidoptera: Riodinidae) em plantas de sub-bosque nos plantios de Eucalyptus de Belo Oriente, MG

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