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Desempenho de Thyrinteina arnobia Stoll (Lepidoptera: Geometridae) em eucalipto e goiaba: o hospedeiro nativo n?o é um bom hospedeiro?
Holtz, Anderson M.;Oliveira, Hamilton G. de;Pallini, Angelo;Venzon, Madelaine;Zanuncio, José C.;Oliveira, Claudinei L.;Marinho, Jeanne S.;Rosado, Maria da C.;
Neotropical Entomology , 2003, DOI: 10.1590/S1519-566X2003000300007
Abstract: plants can develop mechanisms of defense that reduces the effects of herbivore attacks. in response, the herbivores evolve to breaking the defense mechanisms of plants. herbivores may also escape from the plant defense system by migrating to other host whose defense is not effective against them. in brazil, outbreaks of the defoliator caterpillar thyrinteina arnobia stoll in eucalyptus sp. are frequently observed. however, the native host of this insect is guava, psidium guajava where outbreaks are not registered. the absence of outbreaks in p. guajava may be related to the development of defense mechanisms in that specie of myrtaceae, which has apparently not yet occurred on eucalyptus. here we investigated the performance of t. arnobia reared on its origin host plant, in comparison with those reared on its exotic host, eucalyptus sp. the intrinsic growth rate of t. arnobia was higher on eucalyptus than on p. guajava. it is possible that the defense mechanism on guava plants acts as a chemical barrier, probably reducing the digestibility of the insect, which could affect the development of the current population and the next generations.
Note on gynandromorphism in the eucalyptus defoliator Thyrinteina arnobia (Stoll, 1782) (Lepidoptera: Geometridae)
Bernardino, Aline S.;Zanuncio, Teresinha V.;Zanuncio, José C.;Lima, Eraldo R.;Serr?o, José E.;
Anais da Academia Brasileira de Ciências , 2007, DOI: 10.1590/S0001-37652007000200006
Abstract: the brown moth thyrinteina arnobia (stoll, 1872) (lepidoptera: geometridae) is an important pest in brazilian eucalyptus plantations. a gynandromorph individual of t. arnobia was found in a population of this pest in a laboratory rearing and it is described.
CARACTERíSTICAS BIOLóGICAS DE ADULTOS DE PODISUS NIGRISPINUS E SUPUTIUS CINCTICEPS (HEMIPTERA: PENTATOMIDAE) ALIMENTADOS COM THYRINTEINA ARNOBIA (LEPIDOPTERA: GEOMETRIDAE) BIOLOGICAL CHARACTERISTICS OF ADULTS OF PODISUS NIGRISPINUS AND SUPPUTIUS CINCTICEPS (HEMIPTERA: PENTATOMIDAE) FED ON THYRINTEINA ARNOBIA (LEPIDOPTERA: GEOMETRIDAE)
Anderson Mathias Holtz,José Cola Zanuncio,Jeanne Scardini Marinho,Dirceu Pratissoli
IDESIA , 2006,
Abstract: O gênero Eucalyptus (mirtacea exótica proveniente da Austrália) é o mais utilizado para reflorestamento no Brasil. Porém, somente a partir de 1966 é que este setor tomou impulso no país. Assim, além de exótica, a eucaliptocultura é recente. Periodicamente s o observados surtos de lepidópteros desfolhadores (Thyrinteina arnobia, por exemplo). No Brasil, os predadores Podisus nigrispinus e Supputius cincticeps vem sendo utilizados contra lepidópteros desfolhadores, porém n o se têm dados sobre o estabelecimento desses predadores em campo. Sendo assim, o objetivo deste trabalho foi verificar os aspectos biológicos de adultos de P. nigrispinus e S. cincticeps sobre lagartas de T. arnobia provenientes de plantas de Eucalyptus urophylla. Comparando-se os aspectos biológicos das duas espécies de predadores, observa-se que o desempenho de P. nigrispinus sobre as lagartas de T. arnobia foi melhor do que o desempenho de S. cincticeps. Este resultado demonstra que P. nigrispinus está conseguindo quebrar possíveis sistemas de defesa dessa espécie de herbívoro, tais como os compostos secundários que o herbívoro provavelmente estaria seqüestrando das plantas de eucalipto e, se os inimigos naturais (S. cincticeps, por exemplo) n o estiverem adaptados a esses compostos, a sua performance no controle da praga e no seu próprio desenvolvimento podem ser afetados negativamente. The Eucalyptus genus (an exotic mirtacea proceeding from Australia) is used for reforestation in Brazil. However, only after 1966 did this sector take impulse in the country. Thus, beyond exotic, the cultivation of this genus is recent. Defoliation caused by epidemics of lepidopterous species, such as Thyrinteina arnobia, for example, had been observed periodically. In Brazil Podisus nigrispinus and Supputius cincticeps are being used as predators against defoliator lepidopterous species, however in current literature information is not available about the establishment of these predators in the field. The objective of this work was to analyze the biological aspects of P. nigrispinus and S. cincticeps adults on T. arnobia caterpillars collected on Eucalyptus urophylla plants. Comparing the biological aspects of the two predators species, the performance of P. nigrispinus on the caterpillars of T. arnobia was observed as better than the performance of S. cincticeps. Based on these results it is possible to demonstrate that P. nigrispinus is breaking possible systems of defense of this specie of herbivore, such as the secondary metabolites that the herbivore probably would be kidnapping from eucalyptu
Rearing of Thyrinteina arnobia (Lepidoptera: Geometridae) on guava and Eucalyptus in laboratory
Oliveira, Harley Nonato de;Zanuncio, José Cola;Pedruzzi, Eder Pin;Espindula, Marcelo Curitiba;
Brazilian Archives of Biology and Technology , 2005, DOI: 10.1590/S1516-89132005000600016
Abstract: thyrinteina arnobia, is one of the most important defoliating caterpillars of eucalyptus in brazil the objective of this work was to evaluate the development and the reproduction of feeding on leaves of guava (psidium guajava) or eucalyptus grandis in the 15th generation, after rearing this species for 14 genrations on guava leaves. t. arnobia showed shorter larval period, better viability of caterpillars and pupae, heavier pupae, higher number of eggs per female, better egg viability and shorter longevity of females in guava leaves than in eucalyptus leaves. the better development and reproduction with p. guajava showed that this insect could be reared in laboratory with guava leaves.
Aspectos biológicos de Thyrinteina arnobia (Lep.: Geometriadae) provenientes de lagartas criadas em folhas de Eucalyptus cloeziana ou de Psidium guajava sob condi es de campo  [cached]
Holtz Anderson Mathias,Zanuncio José Cola,Oliveira Hamilton Gomes de,Pallini Angelo
Revista árvore , 2003,
Abstract: Os plantios de Eucalyptus no Brasil podem sofrer danos por espécies nativas de insetos de diversas ordens, como Orthoptera, Coleoptera e Lepidoptera. Esses insetos podem alimentar-se tanto de mirtáceas brasileiras como goiabeira, gabirobeira, jabuticabeira, entre outras, como de espécies do gênero Eucalyptus. Entre os desfolhadores, destaca-se Thyrinteina arnobia (Stoll) (Lepidoptera: Geometridae) como o mais daninho dessa ordem para a eucaliptocultura brasileira. Este trabalho teve por objetivo avaliar aspectos biológicos de adultos de T. arnobia provenientes de lagartas alimentadas com plantas de eucalipto e, ou, goiabeira. Adultos deste inseto criados em folhas de eucalipto e, ou, de goiabeira apresentaram diferen as significativas para a maioria dos aspectos biológicos avaliados, exceto para a dura o dos períodos de préoviposi o, de oviposi o e raz o sexual. Assim, insetos herbívoros que vivem em hospedeiros filogeneticamente próximos ao eucalipto s o capazes de causar danos consideráveis em reflorestamentos com espécies desse grupo, o que provavelmente ocorre pelo fato de elas estarem ainda em processo de adapta o a essa praga que atacaria o eucalipto, por estar fugindo da press o exercida por barreiras físicas e químicas existentes nas mirtáceas nativas brasileiras.
Electrophysiological responses of eucalyptus brown looper Thyrinteina arnobia to essential oils of seven Eucalyptus species
Batista-Pereira, Luciane G.;Fernandes, Jo?o B.;Corrêa, Arlene G.;Silva, M. Fátima G. F. da;Vieira, Paulo C.;
Journal of the Brazilian Chemical Society , 2006, DOI: 10.1590/S0103-50532006000300019
Abstract: eucalyptus is frequently attacked by the brazilian eucalyptus brown looper, thyrinteina arnobia. this caterpillar is regarded as the main lepidopterous pest of eucalyptus and yet no practical and environmentally acceptable method of control currently exists. electroantennographic techniques (eag) have never before been used to detect semiochemicals that affect the behavior of t. arnobia. thus, in this work, the ability of t. arnobia males and females to detect volatile essential oils of seven eucalyptus species was investigated by eag. we demonstrated that t. arnobia antennal olfactory system clearly showed differential sensitivity to several compounds, by coupled gas chromatography-electroantennographic detection (gc-ead). twenty-eight compounds were identified that elicited responses in t. arnobia, indicating that gc-ead analysis may well be a useful means of screening active plant extracts for compounds that contribute to the observed behavior of this defoliator. the results also suggest that this species uses several volatile cues to find its host.
Electrophysiological responses of eucalyptus brown looper Thyrinteina arnobia to essential oils of seven Eucalyptus species  [cached]
Batista-Pereira Luciane G.,Fernandes Jo?o B.,Corrêa Arlene G.,Silva M. Fátima G. F. da
Journal of the Brazilian Chemical Society , 2006,
Abstract: Eucalyptus is frequently attacked by the Brazilian eucalyptus brown looper, Thyrinteina arnobia. This caterpillar is regarded as the main lepidopterous pest of Eucalyptus and yet no practical and environmentally acceptable method of control currently exists. Electroantennographic techniques (EAG) have never before been used to detect semiochemicals that affect the behavior of T. arnobia. Thus, in this work, the ability of T. arnobia males and females to detect volatile essential oils of seven Eucalyptus species was investigated by EAG. We demonstrated that T. arnobia antennal olfactory system clearly showed differential sensitivity to several compounds, by coupled gas chromatography-electroantennographic detection (GC-EAD). Twenty-eight compounds were identified that elicited responses in T. arnobia, indicating that GC-EAD analysis may well be a useful means of screening active plant extracts for compounds that contribute to the observed behavior of this defoliator. The results also suggest that this species uses several volatile cues to find its host.
Comportamento de chamamento de Thyrinteina arnobia (Stoll) (Lepidoptera: Geometridae) em Psidium guajava, Eucalyptus grandis e em dieta artificial
Batista-Pereira, Luciane G.;Wilcken, Carlos F.;Pereira Neto, Sílvio D.;Marques, Eli N.;
Neotropical Entomology , 2004, DOI: 10.1590/S1519-566X2004000100005
Abstract: this work was carried out to determine and compare the effects of three diets (psidium guajava and eucalyptus grandis host-plant leaves and artificial diet) on the calling behavior and on the temporal pattern of calling behavior of thyrinteina arnobia (stoll). all activities of virgin females during six scotophases were observed in the laboratory at 5min. intervals until the females stopped calling in the following photophase, at 22 ± 1oc, 70 ± 5% rh and 10h scotophase. the diets affected the calling behavior of t. arnobia. two positions of calling were observed. calling of female virgins started in the first hour immediately after emergence. the calling pattern was characteristic of the continuous pattern. the type of diet affected the mean onset of calling time (pre-calling) and the total time calling of t. arnobia. older females called earlier than younger after the onset of scotophase. the diets affected the color of pheromone gland.
Seletividade alimentar e influência da idade da folha de Eucalyptus SPP. para Thyrinteina Arnobia (Lepidoptera: Geometridae)
Lemos, Raimunda Nonata Santos;Crocomo, Wilson Badiali;Forti, Luiz Carlos;Wilcken, Carlos Frederico;
Pesquisa Agropecuária Brasileira , 1999, DOI: 10.1590/S0100-204X1999000100002
Abstract: thyrinteina arnobia (stoll, 1782) (lepidoptera: geometridae) is considered one of the most serious eucalyptus pests in brazil. this work was carried out aiming to study feeding preference of t. arnobia and the influence of leaf age on the host selection, using young and old leaves of eucalyptus grandis, eucalyptus camaldulensis, eucalyptus saligna, eucalyptus citriodora, eucalyptus robusta e eucalyptus cloeziana. caterpillars fed with e. grandis leaves in previous generation, preferred young leaves of e. grandis and e. cloeziana, while caterpillars fed with e. saligna in previous generation preferred old leaves of e. grandis. the most consumed species was e. grandis, and the caterpillars preferred young leaves than old ones, for all species studied.
Atratividade de Atta sexdens rubropilosa por plantas de eucalipto atacadas previamente ou n?o por Thyrinteina arnobia
Oliveira, Hamilton Gomes de;Lacerda, Fabrícia Gon?alves;Marinho, Cidália Gabriela Santos;Della Lucia, Terezinha Maria Castro;
Pesquisa Agropecuária Brasileira , 2004, DOI: 10.1590/S0100-204X2004000300012
Abstract: the induced defense system of plants is activated after the occurrence of damage by a herbivore. the objective of this work was to evaluate whether plants of eucalyptus grandis previously attacked by larvae of thyrinteina arnobia become resistant to cutting by the leaf-cutting ant atta sexdens rubropilosa. there was no significant difference in the lapse of time spent by the workers of this ant before they started cutting plants previously attacked or not. there was significant reduction in the size of leaf fragments cut by the ants. it was concluded that plants previously attacked were less attractive to the leaf cutter due to the activation of their induced defense system.
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