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Item Biological characteristics of Trichospilus diatraeae (Hymenoptera: Eulophidae) are influenced by the number of females exposed per pupa of Tenebrio molitor (Coleoptera: Tenebrionidae)(Florida Entomologist, 2013-06) Favero, Kellen; Pereira, Fabricio Fagundes; Kassab, Samir Oliveira; Oliveira, Harley Nonato de; Costa, Daniele Perassa; Zanuncio, José ColaDifferent numbers of parasitoid females confined with a host can variously affect the number, sex ratio and other characteristics of the parasitoid's progeny. The objective of this study was to elucidate the effects of various ratios of Trichospilus diatraeae Cherian & Margabandhu (Hymenoptera: Eulophidae) females to pupae of one its hosts, Tenebrio molitor L. (Coleoptera: Tenebrionidae), primarily on the number of this parasitoid's progeny and their sex ratio. Both the parasitoid and the host used in this study were taken from cultures reared in the laboratory by standard methods. In order to minimize the effects of variations in host weight, 24 h-old T. molitor pupae weighing between 0.110 and 0.140 g were held as a single individuals in glass tubes (2.5 cm Ø × 14 cm L) with 48 h-old T. diatraeae females for 72 h to allow parasitization. After this period, female wasps were removed and the host pupa were transferred, one per glass tube, to a climate-controlled room at 25 ± 2 °C, 70 ± 10% RH and 12:12 h L:D. The experimental design was completely randomized with six treatments (parasitoid-host ratios) and 12 replicates per treatment. The ratios of T. diatraeae females per host used were: 1:1, 7:1, 14:1, 21:1, 28:1 and 32:1. The percentage parasitism of T. diatraeae on T. molitor pupae was 33.33, 82.00 and 83.33% at ratios of 1:1, 7:1 and 14:1, respectively, and 100% at all other ratios. The emergence of T. diatraeae adults from parasitized pupae was 75% at a parasitoid-host ratio of 1:1 and 100% at ratios of 21:1, 28:1 and 32:1. The duration of the parasitoid's life cycle ranged from 21.00 ± 2.22 to 24.00 ± 2.00 days at parasitoid-host ratios of 32:1 and 1:1, respectively. The number of T. diatraeae progeny per T. molitor pupa was highest at a ratio of 21:1 (246.50 ± 50.18). The proportion of T. diatraeae females in the offspring decreased as the parasitoid-host ratio increased, varying between 0.82 ± 0.06 and 0.97 ± 0.01. A parasitoid-host ratio of 21:1 T. diatraeae females per T. molitor pupa is considered the most adequate and appropriate for mass-rearing of this parasitoid. Tenebrio molitor appears to be a suitable alternate host for efficient mass-rearing of T. diatraeae for biological control of lepidopteran pests. At the parasitoid-host ratio of 21:1, each T. molitor pupa supported the production of 246.5 parsitoids of which 88% were females, i.e., 216.9 females and 29.6 males; each T. diatraeae female produced 9.55 ± 0.48 female progeny, and the developmental time from egg to adult was 20.4 days.Item Controle de Acromyrmex laticeps nigrosetosus (Hymenoptera: Formicidae), em eucaliptal no Pará, com Iscas Granuladas com Sulfluramida ou Clorpirifós(Acta Amazonica, 1999-12) Zanuncio, José Cola; Cruz, Adalton Pinheiro da; Oliveira, Harley Nonato de; Gomes, Francisco SérgioEste trabalho foi realizado em reflorestamento de eucalipto da Jari Celulose S.A., no município de Almerim, Pará, de setembro de 1996 a janeiro de 1997. Objetivou-se testar a eficiência de duas iscas granuladas à base de sulfluramida e outra à base de clorpirifós, nas dosagens de 4, 6, 8 e 10 gramas por metro quadrado de formigueiro, para o controle de Acromyrmex laticeps nigroselosus Forel (Hymenoptera: Formicidae). As duas iscas com sulfluramida, nas dosagens testadas, apresentaram acima de 99,0% de transporte e nenhuma devolução. Todos os formigueiros tratados, com essas iscas, estavam mortos na avaliação final, enquanto a eficiência da isca com clorpirifós variou de 55,56 a 66,67%, para as diferentes dosagens testadas. As iscas à base de sulfluramida podem ser recomendadas para o controle de A. laticeps nigrosetosus na região do trópico úmido do Brasil.Item Controle de Atta laevigata (Hymenoptera: formicidae) com a isca Landrin-f, em área anteriormente coberta com Eucalyptus(Ciência Rural, 1999-10) Zanuncio, José Cola; Zanuncio, Teresinha Vinha; Pereira, José Milton Milagres; Oliveira, Harley Nonato deEmbora muitos produtos tenham sido testados como princípio ativo de iscas formicidas, o mercado predominantemente utilizava produtos à base de dodecacloro. Com a proibição deste último composto, surgiram as iscas à base de sulfluramida ou de clorpirifós, constituindo, atualmente, dois dos princípios ativos de iscas formicidas, disponíveis no mercado. Este trabalho objetivou testar a isca Landrin-F (clorpirifós 0,45%) no controle da formiga cortadeira Atta laevigata (F. Smith) (Hymenoptera: Formicidae), comparado à isca Mirex-S (sulfluramida 0,3%). Foram utilizados tratamentos com a aplicação de 30 a 120 gramas da isca Landrin-F por olheiro; aplicação de 8g/m2 de formigueiro da isca Landrin-F; aplicação de 8 g/m2 de formigueiro da isca Mirex-S e; testemunha, sem aplicação de isca formicida. Após 24 e 48 horas, avaliaram-se o transporte e/ou devolução das iscas, e aos 7, 15, 30, 60, 90, 120, 150, 180 e 210 dias, a atividade dos formigueiros, os quais foram sondados e escavados, aos 180 dias, e feita a avaliação final de atividade aos 210 dias. A utilização da metodologia de aplicação da isca Landrin-F por olheiro ativo aumentou consideravelmente a quantidade de isca aplicada, em relação à metodologia de aplicação por metro quadrado de formigueiro. Como a isca Landrin-F mostrou eficiência semelhante nas duas metodologias de aplicação, recomenda-se que a mesma seja aplicada na dosagem de 8g/m2 de formigueiro para o controle de A. laevigata.Item Development and reproduction of Podisus nigrispinus (Hemiptera: Pentatomidae) fed with Thyrinteina arnobia (Lepidoptera: Geometridae) reared on guava leaves(Brazilian Archives of Biology and Technology, 2011-05) Espindula, Marcelo Curitiba; Oliveira, Harley Nonato de; Duarte, Marcela Marcelino; Pereira, Fabrício Fagundes; Zanuncio, José ColaThe aim of this study was to evaluate the development and reproduction of P. nigrispinus in laboratory when fed with T. arnobia reared on guava leaves. This predator showed nymphal stage of 21.11 days, survival of 60% and periods of pre-oviposition, number of eggs/mass and eggs/female and egg viability of 6.10 days, 26.24 eggs, 314.90 eggs and 82.65%, respectively. These results demonstrated that T. arnobia fed with guava leaves was an adequate supply of food to P.nigrispinus.Item Ganancia de peso del depredador Podisus distinctus (Heteroptera: Pentatomidae) en combinaciones de las presas Tenebrio molitor (Coleoptera: Tenebrionidae) y Musca domestica (Diptera: Muscidae)(Revista de Biología Tropical, 2002-09-23) Matos Neto, Fausto da Costa; Oliveira, Harley Nonato de; Zanuncio, José Cola; Holtz, Anderson Mathias; Oliveira, Isaias; Fialho, Maria do Carmo QueirozEntre las ninfas de los asopíneos usados para el con- trol de gusanos desfoliadores en plantaciones de eucalipto, Podisus distinctus (Stal) (Heteroptera: Pentatomidae) re- presenta un potencial agente de control biológico, sin em- bargo esta especie ha sido poco estudiada. El presente trabajo evaluó el efecto de las diferentes combinaciones de las presas Musca domestica L. (Diptera: Muscidae) y Te- nebrio molitor L. (Coleoptera: Tenebrionidae) sobre el pe- so de ninfas de P. distinctus. El experimento se realizó en laboratorio do “Instituto de Biotecnologia Aplicada à Agropecuaria (BIOAGRO)”, a 25 ± 0.5oC, 60 ± 10% de humedad relativa y 14 horas de fotoperiodo. Las ninfas de P. distinctus fueron individualizadas en cajas de Petri y ali- mentadas de acuerdo con los siguientes tratamientos: T1- larvas de M. domestica durante toda la fase ninfal; T2- lar- vas de M. domestica en el II estadio y de T. molitor en los III, IV y V estadios; T3- larvas de M. domestica en el II y III estadios y de T. molitor en los IV y V estadios; T4- lar- vas de M. domestica en el II, III y IV estadios y de T. mo- litor en el V estadio; T5- larvas de T. molitor en todos los estadios. Los mejores resultados de peso y ganancia de pe- so fueron encontrados cuando P. distinctus fue alimentado alternadamente con larvas de M. domestica y T. molitor. Cuando esse depredador fue solamente alimentado con lar- vas de M. domestica, presentó pesos menores.Item Influência da idade dos ovos de Diatraea saccharalis (Lepidoptera: crambidae) no parasitismo de Trichogramma galloi (Hymenoptera: trichogrammatidae)(Interciencia, 2014-01) Oliveira, Harley Nonato de; Santana, Danilo Renato Santiago; Bellon, Patrícia Paula; Oliveira, Fabrício Correia deDiatraea saccharalis é considerada praga-chave na cultura de cana-de-açúcar. O controle biológico utilizando o parasitoide de ovos, Trichogramma galloi é uma opção para o controle dessa praga. No entanto, vários fatores podem influenciar o parasitismo, como por exemplo, a idade do hospedeiro. O objetivo desse trabalho foi avaliar a taxa de parasitismo, viabilidade, razão sexual, número de indivíduos por ovo e o número de fêmeas que parasitaram em diferentes estágios embrionários deD. saccharalis. Cinquenta ovos desse lepidóptero com 1, 2, 3, 4 e 5 dias de idade foram oferecidos a uma fêmea de T. galloi,por um período de 24h. As diferentes idades dos ovos de D. saccharalis não afetaram o desempenho reprodutivo de T. galloi, demonstrando que independentmente da fase do desenvolvimento embrionário, os ovos de D. saccharalis podem ser utilizados para a criação e manutenção desse parasitoide em laboratório, sugerindo-se com isto que a campo, os ovos desse inseto podem ser parasitados em todas as suas fases de desenvolvimento.Item Leaf consumption and duration of instars of the cassava defoliator Erinnyis ello (L., 1758) (Lepidoptera, Sphingidae)(Revista Brasileira de Entomologia, 2002) Pratissoli, Dirceu; Zanúncio, José Cola; Barros, Reginaldo; Oliveira, Harley Nonato deThe objectives of this research were to evaluate leaf consumption and the developmental time of the larvae of Erynnyis ello (L., 1758) (Lepidoptera, Sphingidae) reared on cassava, in order to obtain information for the integrated management of this pest. The larvae were reared on excised cassava leaves in Petri dishes and later in gerbox, and kept in chambers at 24 ± 2 ºC and 75 ± 10% RH. The total leaf area consumed by the larva to complete its development was 589.67 cm2; each of the five instars consumed, respectively: 1.89 cm2; 5.74 cm2; 17.48 cm2; 76.66 cm2; and 487.90 cm2. The consumption by the first three instars was insignificant, and did not reach 5% altogether; the 4th represented 13%; the 5th presented a consumption significantly higher, about 82.7%. The total time for the larval development was 22.61 days, and the duration for each of the five larval instar was, respectively: 4.35; 3.19; 3.32; 4.52; and 4.94 days. The pre-pupal period lasted 2.29 days. Since the highest consumption is by the 5th instar larva, the control should be applied before this age to avoid heavier damages to the cassava crop.Item Parasitism and emergence of Tetrastichus howardi (Hymenoptera: Eulophidae) on Diatraea saccharalis (Lepidoptera: Crambidae) larvae, pupae and adults(Florida Entomologist, 2015) Pereira, Fabricio Fagundes; Kassab, Samir Oliveira; Calado, Vanessa Rodrigues Ferreira; Vargas, Elizangela Leite; Oliveira, Harley Nonato de; Zanuncio, José ColaTetrastichus howardiOlliff (Hymenoptera: Eulophidae) parasitizes the larvae, pupae and adults ofDiatraea saccharalis, and therefore seems to be a suitable candidate for the biological control ofD. saccharalisin commercial sugarcane in Brazil and other industries where this stem borer is an important pest. The aim of our study was to analyze the biological characteristics of this natural enemy on sugarcane borer. The research was conducted in the Laboratory of Entomology/Biological Control (LECOBIOL) at the “Faculdade de Ciências Agrárias” of the “Universidade da Grande Dourados (UFGD)” in Dourados, Mato Grosso do Sul State, Brazil. Ten of each of the following life stages: 24-h old egg masses, fifth instar larvae, pupae and adults ofD. saccharaliswere isolated and exposed to parasitism by sevenT. howardiparasitoids females. Parasitism rates byT. howardiof the adult, fifth instar larva and pupal stages ofD. saccharaliswere 2%, 56% to 68%, respectively. Emergence rates of 14%, 100% and 100% were recorded for adult, fifth instar larvae, and adults, respectively. The duration of each life cycle (egg to adult) ofT. howardion the pupae, fifth instar larvae and adults ofD. saccharaliswere 20 ± 0.03, 27.00 ± 0.01, 33 ± 0.00 days, respectively. Fecundity and the female-based sex ratio ofT. howardiwere greatest in the pupae ofD. saccharalis, at 70.44 ± 5.22 and 0.85 ± 0.41, respectively. Parasitism and the emergence ofT. howardifrom the fifth instar larvae, pupae and adults ofD. saccharalisrevealed the ability of this natural enemy to establish itself in culture, even in the absence of host pupae.Item Potencial de uso de Trichogramma como agente de controle biológico de lepidópteros desfolhadores de Eucalyptus e sua associação com percevejos predadores(Universidade Federal de Viçosa, 2001-07-31) Oliveira, Harley Nonato de; Zanuncio, José Cola; http://lattes.cnpq.br/8384759840450371Este trabalho avaliou o potencial de controle de três espécies de Trichogramma em ovos de lepidópteros desfolhadores de eucalipto e sua associação com percevejos pedadores. Foram avaliados a taxa de parasitismo, a viabilidade, a razão sexual, o número de indivíduos por ovo, a duração do período embrionário e a longevidade das fêmeas descendentes em ovos de Oxydia vesulia Cramer (Lepidoptera: Geometridae), das três espécies de parasitóide estudadas, apenas Trichogramma acacioi Brun e Trichogramma maxacalii Voegelé & Pointel (Hymenoptera: Trichogrammatidae) parasitaram ovos desse hospedeiro. Em ovos com diferentes períodos embrionários, T. maxacalii foi capaz de parasitar ovos com um, três e cinco dias. Ovos de Thyrinteina arnobia (Stoll) (Lepidoptera: Geometridae) não foram parasitados por T. acacioi, T. maxacalii e Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) e após 24 horas de contato com os ovos, todas as fêmeas desses parasitóides estavam mortas. No entanto, quando se lavou os ovos desse mesmo lepidóptero com solução xilol a 0,1%, somente 30% dos parasitóides estavam mortos após 24 horas. O estudo de comportamento de Podisus maculiventris (Say) (Heteroptera: Pentatomidae) por ovos de Anagasta kuehniella (Zeller) (Lepidoptera: Pyralidae) parasitados ou não por Trichogramma brassicae (Bezdenko) (Hymenoptera: Trichogrammatidae), mostrou que esse predador prefere ovos dispostos em forma quadrangular, assemelhando-se a uma larva, e ovos não parasitados.Item Rearing of Thyrinteina arnobia (Lepidoptera: Geometridae) on guava and Eucalyptus in laboratory(Brazilian Archives of Biology and Technology, 2005-09) Oliveira, Harley Nonato de; Zanuncio, José Cola; Pedruzzi, Eder Pin; Espindula, Marcelo CuritibaThyrinteina 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.Item Reproduction of Tetrastichus howardi (Hymenoptera: Eulophidae) in Diatraea saccharalis (Lepidoptera: Crambidae) pupae at different temperatures(Florida Entomologist, 2015) Favero, Kellen; Pereira, Fabricio Fagundes; Torres, Jorge Braz; Oliveira, Harley Nonato de; Kassab, Samir Oliveira; Zanuncio, José ColaTemperature is a major abiotic factor affecting insects. The aim of this study was to evaluate the development of Tetrastichus howardi (Olliff) (Hymenoptera: Eulophidae) on Diatraea saccharalis F., sensu Guenée (Lepidoptera: Crambidae) pupae at 6 constant temperatures (16, 19, 22, 25, 28, and 31 °C). This parasitoid developed at all temperatures with the shortest development time and lowest survival at 31 °C. Tetrastichus howardi females oviposited immediately after making contact with the host pupae. Parasitoids that were kept at 25 °C had the greatest fecundity, and those kept at 16°C had the greatest longevity. The greatest net reproductive rate (R0) occurred at 25 °C, and the intrinsic rates of increase (rm) at 25, 28, and 31°C were similar but significantly greater than at the lower temperatures. The generation time (T) of T. howardi was significantly the longest at 16 °C, which resulted in the slowest development and greatest female longevity. The fecundity of Tetrastichus howardi was greater in the 19 to 28 °C temperature range than at 16 °C and at 31 °C. These results are important for the multiplication of T. howardi in the laboratory, and for understanding its potential for the biological control of D. saccharalis.Item Thermal requirements and generation estimates of Trichospilus diatraeae (Hymenoptera: Eulophidae) in sugarcane producing regions of Brazil(Florida Entomologist, 2013-03) Zanuncio, José Cola; Oliveira, Harley Nonato de; Rodrigues, Maria Adriana Torqueti; Pereira, Fabricio Fagundes; Kassab, Samir Oliveira; Pastori, Patrik Luiz; Glaeser, Daniele FabianaKnowledge of the thermal requirements of Trichospilus diatraeae (Hymenoptera: Eulophidae) is important if it is to be used successfully in to control Diatraea saccharalis (Lepidoptera: Crambidae) in sugarcane plantations. In the current study, the development of T. diatraeae was investigated in the pupae of D. saccharalis incubated at different temperatures. Seven T. diatraeae females were placed with host pupae for 24 h in tubes within chambers at 16, 19, 22, 25, 28 and 31 °C with 70 ± 10% RH and 14:10 h L:D. The life cycle duration of T. diatraeae decreased as the temperature increased, although no development was recorded at 31 °C. The number of T. diatraeae progeny per female ranged from 264.8 ± 40.7 (at 16 °C) to 385.1 ± 36.3 (at 25 °C), but no significant difference were recorded among temperature treatments (P > 0.05). The base temperature (T b ) and thermal constant (K) of T. diatraeae were 9.37 °C and 257.60 degree-days, respectively. The estimated average numbers of generations per year of T. diatraeae in pupae of D. saccharalis were 18.5, 19.93 and 17.73 for Dourados, Ivinhema and Ponta Porã municipalities of Mato Grosso do Sul State, Brasil, respectively.