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Efeito da alimenta o de Schizaphis graminum com genótipos de sorgo no desenvolvimento do predador Cycloneda sanguinea
Santos Terezinha Monteiro dos,Figueira Liliane Karla,Boi?a Júnior Arlindo Leal,Lara Fernando Mesquita
Pesquisa Agropecuária Brasileira , 2003,
Abstract: O pulg o Schizaphis graminum (Rondani) (Hemiptera: Aphididae) é uma das principais pragas do sorgo. O objetivo deste trabalho foi determinar o efeito da alimenta o deste inseto com genótipos de sorgo resistentes e suscetíveis no desenvolvimento do predador Cycloneda sanguinea (Linnaeus) (Coleoptera: Coccinellidae). O pulg o foi criado em folhas dos genótipos de sorgo GR 11111 e TX 430 x GR 111, resistentes, GB 3B, de resistência moderada e BR 007B, suscetível ao hemíptero. As larvas de C. sanguinea foram alimentadas diariamente, ad libitum, com ninfas e adultos de S. graminum. A dura o das fases de desenvolvimento e a sobrevivência de C. sanguinea n o foram influenciadas pelo genótipo. Apenas a dura o do quarto ínstar, da fase larval e do período de larva a adulto foram afetadas. O peso de larvas de segundo ínstar de C. sanguinea n o foi afetado pelo genótipo. Nos demais ínstares e fase adulta, esse parametro foi diferenciado conforme o genótipo de sorgo utilizado como hospedeiro ao pulg o. Os genótipos resistentes GR 11111 e TX 430 x GR 111 n o afetam adversamente o desenvolvimento e a fecundidade de C. sanguinea, durante uma gera o. Estes genótipos demonstram compatibilidade com o predador e viabilizam o manejo de S. graminum na cultura do sorgo.
Efeito da alimenta??o de Schizaphis graminum com genótipos de sorgo no desenvolvimento do predador Cycloneda sanguinea
Santos, Terezinha Monteiro dos;Figueira, Liliane Karla;Boi?a Júnior, Arlindo Leal;Lara, Fernando Mesquita;Cruz, Ivan;
Pesquisa Agropecuária Brasileira , 2003, DOI: 10.1590/S0100-204X2003000500001
Abstract: the aphid schizaphis graminum (rondani) (hemiptera: aphididae) is one of the main pests of sorghum crop. the objective of this work was to evaluate the effect of this aphid feeding on resistant and susceptible sorghum genotypes on the development of its predator cycloneda sanguinea (linnaeus) (coleoptera: coccinellidae). the aphid was reared on leaves of sorghum genotypes gr 11111 and tx 430 x gr 111, resistant, gb 3b, moderately resistant, and br 007b, susceptible to the hemipterous. larvae of c. sanguinea were fed ad libitum on s. graminum nymphs and adults, daily. the duration and survival of developmental phases of c. sanguinea were not significantly influenced by genotype. only the fourth instar, the larval phase and the larvaeadult period duration were affected. the weight of c. sanguinea larvae of second instar was not affected by sorghum genotype. for both instars and adult phase, this parameter was differentiate due to each genotype used as host to the aphid. the resistant genotypes gr 11111 and tx 430 x gr 111 do not affect adversely c. sanguinea development and fecundity, during one generation. these genotypes show compatibility with the predator, allowing the s. graminum management on sorghum crop.
Locomotor activity of Cycloneda sanguinea (Coleoptera: Coccinellidae) exposed to volatile semiochemicals and to direct contact with the odour source Actividad locomotriz de Cycloneda sanguinea (Coleoptera: Coccinellidae) expuesta a semioquímicos volátiles y al contacto directo con la fuente de olor  [cached]
Guillermo E. Heit,Pedro Sardoy,Graciela R. Cohen,Graciela Mareggiani
Revista de la Sociedad Entomol?3gica Argentina , 2007,
Abstract: Cycloneda sanguinea (Linnaeus) (Coleoptera: Coccinellidae) is an opportunistic polyphagous predator and when aphids dominate its menu, a complex foraging behaviour can be expected. An active movement characterized by a high locomotor activity plays an important role in the search of this prey. The behaviour of C. sanguinea adults exposed to volatile semiochemicals emitted by Capsicum annuum Linnaeus (Solanaceae) substrates, healthy or infested with Myzus persicae (Sulzer) (Hemiptera: Aphididae), or in direct contact with these substrates was here analyzed. The treatments evaluated were: A) high aphid-infested pepper leaves, B) low aphid-infested pepper leaves, C) healthy pepper leaves and D) control. Locomotor activity was not significantly different among treatments when C. sanguinea was exposed only to the volatiles. However, when adults were placed in direct contact with the evaluated substrates, statistically significant differences were found among treatments. These preliminary results could indicate that the sole presence of an olfactory stimulus could not be sufficient to modulate a different locomotor pattern in C. sanguinea. Cycloneda sanguinea (Linnaeus) (Coleoptera: Coccinellidae) es un predador polífago oportunista y cuando su menú está dominado por áfidos, es esperable un comportamiento complejo de forrajeo. Un movimiento activo, caracterizado por alta actividad locomotriz, juega un rol importante en la búsqueda de esta presa. En este trabajo se analizó el comportamiento de adultos de C. sanguinea expuestos a los semioquímicos volátiles, emitidos por sustratos de Capsicum annuum Linnaeus (Solanaceae) sanos o infestados con Myzus persicae (Sulzer) (Hemiptera: Aphididae), o simplemente puestos en contacto directo con esos sustratos. Los tratamientos evaluados fueron: A) hojas de pimiento infestadas con alta densidad de áfidos, B) hojas de pimiento infestadas con baja densidad de áfidos, C) hojas de pimiento sanas y D) control. La actividad locomotriz no difirió significativamente entre los distintos tratamientos cuando C. sanguinea se expuso solamente a los volátiles. En cambio, cuando los coccinélidos se pusieron en contacto directo con los sustratos evaluados, se encontraron diferencias significativas entre los tratamientos. Estos resultados preliminares indicarían que la sola presencia de un estímulo de olor, no sería suficiente para modular un patrón locomotor diferente en C. sanguinea.
ASPECTOS BIOLóGICOS DE Cycloneda sanguinea (L.) (Coleoptera: Coccinellidae) BIOLOGICAL ASPECTS OF Cycloneda sanguinea (L) (COLEOPTERA, COCCINELLIDAE)  [cached]
Valquíria da Rocha Santos Veloso,Ronaldo Veloso Naves,Jorge Luiz do Nascimento,Paulo Mar?al Fernandes
Pesquisa Agropecuária Tropical , 2007, DOI: 10.5216/pat.v25i2.2915
Abstract: Estudou-se no presente trabalho a biologia da Cycloneda sanguinea (L.), utilizando como presa afídeos do gênero Dactynotus sp. As observa es foram realizadas no Laboratório de Entomologia do Departamento Fitossanitário - EA/UFG, com temperatura e umidade relativa média de 23°C e 79,4%, respectivamente. Os estudos foram iniciados com larvas oriundas das posturas coletadas no campo. O período de incuba o observado foi de três dias e a viabilidade de 86%. O período larval foi de 9,43 dias, a dura o média de cada instar foi de 2,43, 1,57, 1,86 e 3,57 dias, respectivamente, para 1°, 2°, 3° e 4° instar. O período de pré-pupa e pupa foram de 0,86 e 4,14 dias, respectivamente. O ciclo biológico larva/adulto foi de 14,43 dias. As larvas apresentaram um consumo diário médio de 14,6 pulg es e durante todo o período larval de 137,76 pulg es, observando-se um aumento de consumo do primeiro para o quarto estágio. PALAVRAS-CHAVE: Cicloneda sanguinea; joaninha; controle biológico. The objective of this work was to study the biology of predator Cycloneda sanguinea (L.,1763), having as prey aphids of genus Dactynotus sp. The observations were realized in the Entomo1ogy Laboratory of Phytosanitary Department - EA/UFG. The environmental conditions of temperature and relative humidity presented during the study period an average of 23°C and 79,4%, respectively. The coccinelideos were collected in field and packed in breeding cages. The studies were initiated with larvae originated from these insects layings. The hatching period of eggs was of 3 days with a viability of 86%. The 1arvae were observed every day, checking the biologic parameters as: larva period of 9.43 days, having each instar an average duration of 2.43, 1.57, 1.86 and 3.57 days, respectively for the 1st, 2nd, 3rd, and 4th instars. The period of pre-pupa and pupa were of 0.86 and 4.14 days, respectively. The biologic cycle from larva to adult was of 14.43 days. Larva as well as adults are predators. The larva consumption was an average of 14.6 aphids/day and consumption during all larva period was of 137.76 aphids. It was observed an increase in quantity of consumed aphids from the 1st to the 4th stages. KEY-WORDS: Cicloneda sanguinea; lady beetle; biological control.
Locomotor activity of Cycloneda sanguinea (Coleoptera: Coccinellidae) exposed to volatile semiochemicals and to direct contact with the odour source
Heit,Guillermo E.; Sardoy,Pedro; Cohen,Graciela R.; Mareggiani,Graciela;
Revista de la Sociedad Entomol?3gica Argentina , 2007,
Abstract: cycloneda sanguinea (linnaeus) (coleoptera: coccinellidae) is an opportunistic polyphagous predator and when aphids dominate its menu, a complex foraging behaviour can be expected. an active movement characterized by a high locomotor activity plays an important role in the search of this prey. the behaviour of c. sanguinea adults exposed to volatile semiochemicals emitted by capsicum annuum linnaeus (solanaceae) substrates, healthy or infested with myzus persicae (sulzer) (hemiptera: aphididae), or in direct contact with these substrates was here analyzed. the treatments evaluated were: a) high aphid-infested pepper leaves, b) low aphid-infested pepper leaves, c) healthy pepper leaves and d) control. locomotor activity was not significantly different among treatments when c. sanguinea was exposed only to the volatiles. however, when adults were placed in direct contact with the evaluated substrates, statistically significant differences were found among treatments. these preliminary results could indicate that the sole presence of an olfactory stimulus could not be sufficient to modulate a different locomotor pattern in c. sanguinea.
C-banding and fluorescent in situ hybridization with rDNA sequences in chromosomes of Cycloneda sanguinea Linnaeus (Coleoptera, Coccinellidae)
Maffei, Eliane Mariza Dortas;Pompolo, Silvia das Gra?as;Petitpierre, Eduard;
Genetics and Molecular Biology , 2004, DOI: 10.1590/S1415-47572004000200011
Abstract: the aim of this study was to describe mitotic and meiotic chromosomes of cycloneda sanguinea using c-banding, fluorescent in situ hybridization (fish) rdna probes, and sequential fish/ag-nor staining. the chromosome number was 2n = 18 + xx for females and 2n = 18 + xy for males. the x chromosome was metacentric and the y chromosome was very small. during meiosis, the karyotypic meioformula was n = 9 + xyp, and sex chromosomes configured a parachute at metaphase i. at the beginning of pachytene, bivalents were still individualized, and sex chromosomes were associated end-to-end through the heteropycnotic region of the x chromosome. later in pachytene, further condensation led to the formation of a pseudo-ring by the sex bivalent. all chromosomes showed pericentromeric heterochromatin. fish and sequential fish/ag-nor staining evidenced the location of the nucleolar organizer region in one pair of autosomes (at spermatogonial metaphase). during meiosis, these genes were mapped to a region outside the sex vesicle by fish, although xyp was deeply stained with silver at metaphase i. these results suggest that these argyrophilic substances are of a nucleolar protein nature, and seem to be synthesized by a pair of autosomes and imported during meiosis (prophase i) to the sex pair, during the association of the sex chromosomes.
Effect of neem seed oil aqueous solutions on survival and development of the predator Cycloneda sanguinea (L.) (Coleoptera: Coccinellidae)
Silva, Flávia A.C. da;Martinez, Sueli S.;
Neotropical Entomology , 2004, DOI: 10.1590/S1519-566X2004000600013
Abstract: the effects of the neem seed oil aqueous solutions on survival and performance of egg, larva and adult stage of the coccinelid predator cycloneda sanguinea (l.) were evaluated under laboratory conditions. in a first trial, eggs and 2nd-instar larvae were sprayed with the neem solutions at 0; 0.5 and 2.25 ml/l and kept at 25 ± 1oc, 70% rh and 14h photoperiod. egg viability and duration and larvae and pupae survival were evaluated as well as the predatory capacity of the larvae, adult longevity and reproduction. egg spraying did not affect egg hatch or larvae survival and development. when the larvae were sprayed, significant mortality was observed only at the higher concentration (p < 0.05) and larval development and predatory capacity were not affected. also, adults originated from treated larvae showed no alterations on sex rate, fecundity, fertility and longevity, thus indicating that at the tested concentrations the neem oil do not reduce the reproductive potential of the species. in a second experiment, adults collected in the field were sprayed with neem oil or kept on parthenium sp. twigs sprayed with the neem oil aqueous solution at 5 ml/l, to evaluate survival. the neem oil at this concentration caused no mortality to the adults, since all of them, sprayed or kept on sprayed twigs, presented a longevity curve similar to untreated ones. the results indicate that the neem oil presents potential to be used in association with biological control of pests, when c. sanguinea is present.
Consumption of Cinara spp. (Hemiptera, Aphididae) by Cycloneda sanguinea (Linnaeus, 1763) and Hippodamia convergens Guérin-Méneville, 1842 (Coleoptera, Coccinellidae)
Cardoso, Josiane Teresinha;Lázzari, Sonia Maria Noemberg;
Revista Brasileira de Entomologia , 2003, DOI: 10.1590/S0085-56262003000400004
Abstract: adults and larvae of coccinellids were observed feeding on populations of the giant conifer aphids cinara spp. on pinus spp., in southern brazil. the objective of this research is to evaluate the consumption capacity of cycloneda sanguinea (linnaeus, 1763) and hippodamia convergens guérin-méneville, 1842 (coleoptera, coccinellidae) on these aphid species, in order to obtain information for biological control programs. ten larvae of each predator species were fed with aphids of small size (nymphs of 1st and 2nd instars), and 10 with aphids of medium size (nymphs of 3rd and 4th instars), maintained under 15oc, 20oc and 25oc, 12 h photophase and 70 ± 10% relative humidity. the aphids were counted every 24 hours, replacing those that were consumed. the total consumption of cinara by the larvae of c. sanguinea was not statistically different at the three temperatures: 325.5; 322.2 and 324.8 of small aphids and 121.3; 140.4 and 109.9 of medium ones, respectively at 15oc, 20oc and 25oc. the consumption by h. convergens was higher than by c. sanguinea and increased noticeably with temperature: 444 aphids at 15oc; 491.3 at 20oc and 513.3 at 25oc, considering the small aphids, and 187.1; 205.1 and 216.6 of medium aphids at the three temperatures. the small aphids weigh about half as much as medium ones and were preferred by all larval instars probably because they are easier to manipulate than the large ones. both predators, especially the 4th instar larvae, showed high consumption capacity on the cinara nymphs at all temperatures and can be regarded as promising biological control agents.
Comparative biology of Cycloneda sanguinea (Linnaeus, 1763) and Hippodamia convergens Guérin-Méneville, 1842 (Coleoptera, Coccinellidae) focusing on the control of Cinara spp. (Hemiptera, Aphididae)
Cardoso, Josiane Teresinha;Lázzar, Sonia Maria Noemberg;
Revista Brasileira de Entomologia , 2003, DOI: 10.1590/S0085-56262003000300014
Abstract: the giant conifer aphids cinara pinivora (wilson, 1919) and cinara atlantica (wilson, 1919) (hemiptera, aphididae) have been observed attacking pinus spp. in southern and southeastern brazil. the coccinellids, on the other hand, were found feeding on these aphids in the field, which can be regarded as potential biological control agents. the biological cycle and mortality rate of larvae of cycloneda sanguinea (linnaeus, 1763) and hippodamia convergens guérin-méneville, 1842 (coleoptera, coccinellidae) were evaluated using twenty larvae of each predator species fed with nymphs of cinara. the vials with the insects were kept under 15 oc, 20 oc and 25 oc, with 12h photophase and 70 ± 10% relative humidity. the consumption was evaluated every 24 hours and the nymphs replaced. for c. sanguinea, the egg incubation time was 10.5, 5.0 and 4.0 days; the average larval development period was 33.3, 15.8 and 8.6 days and the larval mortality rate 20%,0% and 15%, respectively at 15 oc, 20 oc and 25 oc. for h. convergens, the larval development time was 41.9, 19.3 and 10.9 days at 15 oc, 20 oc and 25 oc, respectively. the larval mortality rate was 35%, 15% and 0% under the three temperatures. both species developed adequately when fed nymphs of cinara, however, c. sanguinea performed better than h. convergens, even at 15 oc, at which temperature the biological cycles of the coccinellids are prolonged, but the temperature is favorable for the development of cinara populations in the field.
Comparative biology of Cycloneda sanguinea (Linnaeus, 1763) and Hippodamia convergens Guérin-Méneville, 1842 (Coleoptera, Coccinellidae) focusing on the control of Cinara spp. (Hemiptera, Aphididae)
Cardoso Josiane Teresinha,Lázzar Sonia Maria Noemberg
Revista Brasileira de Entomologia , 2003,
Abstract: The giant conifer aphids Cinara pinivora (Wilson, 1919) and Cinara atlantica (Wilson, 1919) (Hemiptera, Aphididae) have been observed attacking Pinus spp. in Southern and Southeastern Brazil. The coccinellids, on the other hand, were found feeding on these aphids in the field, which can be regarded as potential biological control agents. The biological cycle and mortality rate of larvae of Cycloneda sanguinea (Linnaeus, 1763) and Hippodamia convergens Guérin-Méneville, 1842 (Coleoptera, Coccinellidae) were evaluated using twenty larvae of each predator species fed with nymphs of Cinara. The vials with the insects were kept under 15 oC, 20 oC and 25 oC, with 12h photophase and 70 ± 10% relative humidity. The consumption was evaluated every 24 hours and the nymphs replaced. For C. sanguinea, the egg incubation time was 10.5, 5.0 and 4.0 days; the average larval development period was 33.3, 15.8 and 8.6 days and the larval mortality rate 20%,0% and 15%, respectively at 15 oC, 20 oC and 25 oC. For H. convergens, the larval development time was 41.9, 19.3 and 10.9 days at 15 oC, 20 oC and 25 oC, respectively. The larval mortality rate was 35%, 15% and 0% under the three temperatures. Both species developed adequately when fed nymphs of Cinara, however, C. sanguinea performed better than H. convergens, even at 15 oC, at which temperature the biological cycles of the coccinellids are prolonged, but the temperature is favorable for the development of Cinara populations in the field.
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