Parasitoid Hymenoptera collected during the diurnal and nocturnal periods in Itumbiara, Goiás

Ch, Marchiori; Ma, Lussari; Dc, Rosa; Penteado-Dias, Angélica María

doi:10.1590/s1519-69842007000300027

Cited by 7 publications

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“…The Chalcioidea together with Ichneumonoidea predominated in the native forest ecosystem. The Chalcididae, and other Chalcidoidea, are one of the biggest tropical groups of insects and are particularly diverse, according to Marchiori et al (2007). In addition to this, Parra et al (2002) confirm that many of the superfamily species have the potential to be used in biological control programmes.…”

Section: Discussionmentioning

confidence: 99%

Biology of Bemisia tuberculata Bondar (Aleyrodidae) and parasitism by Encarsia porteri (Mercet, 1928) (Hymenoptera, Aphelinidae) on cassava plants

et al. 2012

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The whitefly Bemisia tuberculata has caused serious damage to cassava producing areas in the state of Mato Grosso do Sul. However, little is known about the biological characteristics of this species. The objective of this study was therefore, to monitor the development of this species bred on cassava plants under controlled greenhouse conditions, and to determine its most vulnerable stages and its reproductive capacity, as well as measuring the length and width each stage of development. To obtain these data, adult individuals were kept in voile traps on cassava leaves of five different plants, totalling ten leaves. After 24 hours the leaves were removed from the traps thus making each egg-laden leaf an experimental unit. The lowest mortality rate was record in the last nymphal stage ('pupae) compared with the other development stages. The highest mortality occurred in the nymphs at the 2 nd and 3 rd instars. Each female laid an average of 6.3 eggs in 24 hours. Thirteen days after egg laying, every one of the nymphs was fixed on the leaves of cassava plants. From the egg laying stage up until the adult stage, the process took 26 days. The proportion of females was 73.5%. The average size of the B. tuberculata egg was 163.22 µm in length and 72.39 µm in width and the "pupae" is 915.82 µm in length and 628.71 µm in width. The measurements of males were 797.16 µm in length and 200.81 µm in width and the length females 916.12 µm in length and 338.99 µm in width. The parasitoid Encarsia porteri (Mercet, 1928) (Hymenoptera, Aphelinidae) was found in the insect stock culture.Keywords: cassava pest, life table, Manihot esculenta. Biologia de Bemisia tuberculata (Hemiptera: Aleyrodidae) em mandioca ResumoA mosca-branca Bemisia tuberculata tem causado sérios danos a áreas produtoras de mandioca do Estado do Mato Grosso do Sul. No entanto, pouco se sabe sobre as características biológicas dessa espécie. O objetivo deste trabalho foi, portanto, acompanhar o desenvolvimento dessa espécie criada em plantas de mandioca em condições de casa de vegetação, além de determinar as suas fases mais vulneráveis e a sua capacidade reprodutiva, e medir o comprimento e a largura das fases de desenvolvimento. Para obter esses dados, os indivíduos adultos foram mantidos em armadilhas voil de folhas de mandioca, de cinco plantas diferentes (duas folhas por planta), totalizando dez folhas. Após 24 horas, as folhas foram retiradas das armadilhas, tornando-se cada folha carregada de ovos uma unidade experimental. Na última fase de ninfa (pupa), a menor taxa de mortalidade foi observada, em comparação com os outros estágios de desenvolvimento. A maior mortalidade ocorreu em ninfas, fixadas em segundo e terceiro ínstares. Cada fêmea depositou uma média de 6,3 ovos em 24 horas. Após 13 dias de postura dos ovos, todas as ninfas estavam fixas nas folhas das plantas de mandioca. A partir da postura dos ovos até a fase de aparecimento dos adultos, foram necessários 26 dias. Houve uma proporção de 73,5% de fêmeas. Os ovos de B. tuberculata med...

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Section: Discussionmentioning

confidence: 99%

Biology of Bemisia tuberculata Bondar (Aleyrodidae) and parasitism by Encarsia porteri (Mercet, 1928) (Hymenoptera, Aphelinidae) on cassava plants

et al. 2012

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“…For example, Kaiser (1994) described TMTT as the main floral volatile of the highly fragrant, moth‐pollinated African orchid Aerangis friesiorum and of floral scent emitted from Selenicereus hamatus (known as ‘queen of the night’). Though parasitoid activity is not strictly diurnal (Marchiori et al 2007), they are generally assumed to be chiefly day active (Marchiori et al 2007) and plants need light for de novo synthesis of HIPVs (Paré & Tumlinson 1997; Signoretti et al 2012). Thus, at least some plants that produce homoterpenes as floral blends are pollinated nocturnally whereas HIPV‐based effects on natural enemies occur chiefly during the day.…”

Section: Community‐level Interactionsmentioning

confidence: 99%

Review of the chemical ecology of homoterpenes in arthropod–plant interactions

et al. 2023

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The homoterpenes 4,8-dimethyl-1,3,7-nonatriene (DMNT) and 4,8,12-trimethyl-1,3,7,11-tridecatetraene (TMTT) are volatile products of plant metabolism reported from diverse plant taxa and multiple plant tissues. As such, they have a range of potential ecological functions. Here, we review the key literature to assess evidence for roles in contrasting plant-arthropod interactions. TMTT, and DMNT especially, have been reported as sometimes dominant constituents of floral scents from angiosperm taxa ranging from primitive Magnoliales to more advanced, taxonomic orders of economic significance such as Fabales and Sapindales. Although all taxa producing TMTT and DMNT in floral scents are entomophilous ('insect pollinated'), experimental evidence for an assumed role of these homoterpenes in pollinator attraction is limited. Representing a trade-off, in some cases, homoterpenes in floral scents have been shown to act as kairomones, attracting herbivores. Additionally, both TMTT and DMNT are released by plant foliage in response to arthropod feeding, mechanical damage simulating feeding, or even egg deposition. Evidence for a functional role in herbivore-induced plant volatile (HIPV) blends comes from a wide range of angiosperm orders, including anemophilous ('wind pollinated') taxa, as well as from gymnosperms. We conclude by considering how TMTT and DMNT function in community-level interactions and highlighting research priorities that will reveal how plants avoid tradeoffs from contrasting ecological functions of DMNT and TMTT release and how homoterpene production might be exploited to develop improved crop varieties.

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“…Several insect species, mainly hymenopterans, have been recorded as parasitoids, acting as biocontrol agents of a myriad of insects considered important crop pests (Marchiori et al 2007). …”

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confidence: 99%

First Record of Venturia sp. Parasitizing the Coconut Moth

et al. 2015

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Abstract. The coconut moth Atheloca subrufella Hulst (Lepidoptera: Phycitidae) is considered an important pest of coconut crops in Brazil, which is the fourth largest global coconut producer. Concerning the economic importance of this crop and aiming to increase the knowledge related to biological control, the present research aimed records the first occurrence of Venturia sp. (Hymenoptera: Ichneumonidae) parasitizing A. subrufella caterpillars in the State of Sergipe, Brazil. Coconuts infested by A. subrufella caterpillars were collected in coconut plantation and kept in the Entomology Laboratory (Universidade Federal de Sergipe -UFS) until the emergence of A. subrufella adults or the parasitoids. The parasitoids obtained were identified as Venturia sp..

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Parasitoid Hymenoptera collected during the diurnal and nocturnal periods in Itumbiara, Goiás

Cited by 7 publications

References 0 publications

Biology of Bemisia tuberculata Bondar (Aleyrodidae) and parasitism by Encarsia porteri (Mercet, 1928) (Hymenoptera, Aphelinidae) on cassava plants

Biology of Bemisia tuberculata Bondar (Aleyrodidae) and parasitism by Encarsia porteri (Mercet, 1928) (Hymenoptera, Aphelinidae) on cassava plants

Review of the chemical ecology of homoterpenes in arthropod–plant interactions

First Record of Venturia sp. Parasitizing the Coconut Moth

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