Effects of Age and Host Number on Reproductive Biology of<i>Allorhogas pyralophagus</i>(Hymenoptera: Braconidae) Attacking the Mexican Rice Borer (Lepidoptera: Pyralidae)

Harbison, Jacque L.; Legaspi, Jesusa C.; Fabritius, Stephanie L.; Saldaña, R. R.; Legaspi, Benjamin C.; Enkegaard, Annie

doi:10.1603/0046-225x-30.1.129

Cited by 15 publications

(11 citation statements)

References 14 publications

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“…In addition, energy and time are consumed from the parasites, and their exposure to predators and environmental factors may occur during foraging. Therefore, quickly and accurately locating a suitable host has im portant implications for ensuring the success of parasitism (Honda & Kainoh, 1998;Harbinson et al, 2001;Amalin et al, 2005;Gunduz & Gulel, 2005;Mehmejad & Copland, 2006;Pereira et al, 2009). According to Zhou et al (2013), sensilla basiconical have a bimodal function as chemo and mechanoreceptors to locate hosts and prevent encounters with their natural enemies through interpretation of chemi cal signals.…”

Section: Discussionmentioning

confidence: 99%

Parasitoid-host interaction: sensory structures involved in the parasitism behavior of Bracon vulgaris (Hymenoptera: Braconidae)

et al. 2014

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Parasitoids have evolved mechanisms to evade their hosts' defenses. Bracon vulgaris (Ashmead) is a larval ectoparasitoid responsible for natural reduction of Anthonomus grandis (Boheman) and Pectinophora gossypiella (Saunders), which are considered the main cotton pests in the cotton agro ecosystem in northeastern Brazil. This study aimed to analyze the sensory structures (antennae and ovipositor) involved in the parasitism behavior of B. vulgaris, and to describe and evaluate associations between composition, morphology, and functions of these structures in the parasitoid-host interaction. Results showed that the B. vulgaris ovipositor is a multifunctional structure of 2.7 ± 0.3 mm in length composed of 3 valves. Valves 1 and 2 are elongated, rigid, and act jointly to pierce the host's cuti cle, to inject the poison glands secretion, and to deposit eggs. Valve 3 covers the other valves, giving them protection. Valve 3 also presents annulations in all its extension, which gives flexibility to the ovipositor, and trichoid sensilla that possibly capture vibrations from the host's feeding and loco motion, thereby aiding the parasite in the host selection. The presence of cuticular microtrichia was possibly responsible for the cleaning of the ovipositor, keeping it functional between the various inser tions that occur during the parasitism behavior. The parasitoid's antennae are filliform-like, measure about 2 mm, and are composed of four types of sensilla (trichoids, basiconical, coeloconical, and pla codes) that act as olfactory and gustatory receptors and/or express tactile, thermo,-and hygroreception functions. The integrated action of these sensory components corroborates the successful parasitism behavior of the parasitoid B. vulgaris.

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Section: Discussionmentioning

confidence: 99%

Parasitoid-host interaction: sensory structures involved in the parasitism behavior of Bracon vulgaris (Hymenoptera: Braconidae)

et al. 2014

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“…Life history parameters provide useful information on the efficiency of biological control agents, particularly when comparing them with the ones of the target pest. Development, reproduction and survival of parasitoid insects are life history components that depend on physiological and environmental factors (Harbison et al 2001;Uçkan and Ergin 2003). These factors can be either abiotic (e.g.…”

Section: Introductionmentioning

confidence: 99%

Functional response and life history parameters of Apanteles taragamae, a larval parasitoid of Maruca vitrata

et al. 2010

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The legume pod borer Maruca vitrata Fabricius (Lepidoptera: Crambidae) is a serious pest of cowpea in West-Africa. The parasitoid Apanteles taragamae Viereck (Hymenoptera: Braconidae) that originates from Taiwan is a potential candidate for biological control of M. vitrata. We investigated under laboratory conditions the functional response of the parasitoid by offering each experienced female 10, 20, 30 and 40 larvae of M. vitrata. We studied the influence of different host larval ages on the development, longevity, sex ratio, lifetime fecundity and parasitization rate of the wasp. In a comparative study, we also investigated the life history of A. taragamae and M. vitrata at different temperatures in the range of 20-30°C. The parasitoid successfully parasitized two-and three-day-old host larvae (first and second instars). Younger larvae (one-day-old) were parasitized to a lesser extent, and only males developed in them. Older larvae were not parasitized, partly because of defensive host behaviour. The success of parasitization was positively correlated with the density of two-day-old M. vitrata larvae. Parasitoid developmental time and longevity decreased with increasing temperature. The intrinsic rate of population increase (r m ) exhibited an optimum curve with a maximum at 24-28°C. For the host M. vitrata, r m was maximal at temperatures of 26-30°C. The data are discussed in the context of the potential of A. taragamae for biological control of M. vitrata.

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“…A idade do hospedeiro e do parasitóide (Thomazini & Berti Filho 2000, Matos Neto et al 2004, assim como várias outras variáveis abióticas e bióticas (Harvey & Gols 1998, Ueno 1999, Harbison et al 2001, Uçkan & Gulel 2002, podem infl uenciar características biológicas do inimigo natural, como, por exemplo, o sucesso do parasitismo, infl uenciando a efi ciência de sistemas de criação de inimigos para programas de controle biológico (Parra 2002). O aumento da idade de fêmeas de parasitóides pode reduzir a reprodução e o parasitismo, com implicações no sistema de criação massal e na seleção de indivíduos para liberações (Amalin et al 2005).…”

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Progênie de Palmistichus elaeisis Delvare & LaSalle (Hymenoptera: Eulophidae) parasitando pupas de Bombyx mori L. (Lepidoptera: Bombycidae) de diferentes idades

Pereira¹,

Zanúncio²,

Serrão³

et al. 2009

Neotrop. entomol.

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-Palmistichus elaeisisDelvare & LaSalle is a natural pupal parasitoid of eucalyptus defoliator lepidopterans and is considered a promising biocontrol agent. However, the development of effi cient rearing techniques for this natural enemy are fi rst required before it can be used in biocontrol programs. Bombyx mori L. pupae are potential alternative hosts for this parasitoid mass rearing, and they are easy to rear. Therefore, we investigated the most suitable host age and the effects of parasitoid age on progeny production of P. elaeisis. B. mori pupae, 24h-, 48h-, 72h-or 96h-old were exposed to P. elaeisis females of similar age. The duration of the life cycle (egg-adult) of P. elaeisis was not affected by the age of the parasitizing female; however, the host age affected parasitoid development. The best parasitization was obtained for 72h-to 96h-old parasitoid females when offered to 48h-to 72h-old host pupae, allowing the synchronized rearing of a large number of P. elaeisis offspring.

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Effects of Age and Host Number on Reproductive Biology ofAllorhogas pyralophagus(Hymenoptera: Braconidae) Attacking the Mexican Rice Borer (Lepidoptera: Pyralidae)

Cited by 15 publications

References 14 publications

Parasitoid-host interaction: sensory structures involved in the parasitism behavior of Bracon vulgaris (Hymenoptera: Braconidae)

Parasitoid-host interaction: sensory structures involved in the parasitism behavior of Bracon vulgaris (Hymenoptera: Braconidae)

Functional response and life history parameters of Apanteles taragamae, a larval parasitoid of Maruca vitrata

Progênie de Palmistichus elaeisis Delvare & LaSalle (Hymenoptera: Eulophidae) parasitando pupas de Bombyx mori L. (Lepidoptera: Bombycidae) de diferentes idades

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