Factors Influencing Termination of Reproductive Diapause in
Orius insidiosus
(Hemiptera: Anthocoridae)

Kingsley, Philip C.; Harrington, B. J.

doi:10.1093/ee/11.2.461

Cited by 28 publications

(14 citation statements)

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“…3). Kingsley & Harrington (1982), who collected diapausing O. insidiosus females in the field, also observed quick termination of diapause when both temperature and daylength were increased (relative to field conditions). However, when either only the temperature or only the daylength was increased, termination occurred in no more than 25%.…”

Section: Fig 1 Effect Of Photoperiod On Diapause Incidence In Four mentioning

confidence: 91%

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Induction and termination of diapause in Orius predatory bugs

Meiracker

1994

Entomologia Exp Applicata

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Photoperiodic induction of reproductive diapause at 18 ~ was investigated in four Orius [Heteroptera: Anthocoridae] species. Orius insidiosus (Say) displayed a long-day response with a critical photoperiod between L1 l:D13 and L12:D12. Diapause in this species was terminated rapidly when the temperature and/or the daylength were increased. Orius majusculus (Reuter) also displayed a long-day response. The critical photoperiod fell between L14:D10 and L16:D8. Diapause in this species was not terminated within 14 days when both temperature and daylength were increased. In Orius albidipennis (Reuter) no diapause could be induced at photoperiods varying from L8:D16 to L16:D8. In Orius tristicolor (White) a high proportion of diapause was found at all photoperiods tested.The effect of temperature on photoperiodic induction of diapause was studied in O. insidiosus at L10:D14. Diapause occurred at 18 ~ 21 ~ and 25 ~ but not at 30 ~ Again, diapause was terminated rapidly after transfer to 25 ~ Exposing only the nymphal instars 1-5 to short daylength was not enough to induce diapause in the whole population of O. majusculus. Orius predatory bugs are used as biocontrol agents against western flower thrips, Frankliniella occidentalis (Pergande) [Thysanoptera: Thripidael, in greenhouses. The consequences of photoperiodic induction of diapause for the success of early season releases of Orius are discussed.

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Section: Fig 1 Effect Of Photoperiod On Diapause Incidence In Four mentioning

confidence: 91%

“…Diapausing females exhibited poorly developed ovaries and well developed fat bodies. Kingsley & Harrington (1982) studied termination of diapause in field-collected females of this species. Induction of diapause has also been examined in two North American populations of O. tristicolor (Gillespie & Quiring, 1993).…”

Section: Introductionmentioning

confidence: 99%

Induction and termination of diapause in Orius predatory bugs

Meiracker

1994

Entomologia Exp Applicata

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“…did not observe sensibility of this predator to alternate photoperiods between pre-imaginal and adult phases. On the other hand, O. insidiosus has its reproduction altered by short photoperiods in temperate countries, resulting in reproductive diapause (Kingsley & Harrington 1982, Ruberson et al 1991, van den Meiracker 1994.…”

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confidence: 99%

Influence of photoperiod on Orius thyestes Herring (Hemiptera: Anthocoridae) reproduction and longevity

Carvalho¹,

Bueno²,

Pedroso³

et al. 2006

Neotrop. Entomol.

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Influência do Fotoperíodo na Reprodução e Longevidade de Orius thyestes Herring (Hemiptera: Anthocoridae) RESUMO -Várias espécies de Orius Wolff são utilizadas no controle biológico de tripes em cultivos protegidos em regiões temperadas, entretanto algumas delas apresentam diapausa reprodutiva, comprometendo a atuação desses agentes de controle biológico. Não existem relatos sobre a biologia da espécie neotropical Orius thyestes Herring em diferentes condições ambientais. Este trabalho objetivou verificar a influência do fotoperíodo na reprodução e longevidade desse predador. Ninfas foram individualizadas em placas de Petri e mantidas em câmaras climatizadas a 28 ± 1°C, UR de 70 ± 10% e nos fotoperíodos de 12L:12E, 11L:13E, 10L:14E e 09L:15E. Os adultos foram acasalados em placas de Petri contendo inflorescência de Bidens pilosa L. Asteraceae como substrato de oviposição e ovos de Anagasta kuehniella (Zeller) (Lepidoptera: Pyralidae) como alimento. Foram avaliados os períodos de pré-oviposição e oviposição, fecundidade e longevidade de fêmeas e machos. Em nenhuma das condições de fotoperíodos avaliadas O. thyestes apresentou diapausa reprodutiva. O número médio de ovos por fêmea diminuiu proporcionalmente ao número de horas de luz, com diferença (P < 0,05) entre os valores obtidos em 12h e 9h de luz. A longevidade de fêmeas e machos do predador sob fotofase de 9h foi menor (P < 0,05) que as longevidades observadas nos demais fotoperíodos testados. O conhecimento sobre a biologia do inimigo natural em diferentes condições permite otimizar a criação massal e prever o desempenho do predador em diferentes fotoperíodos que podem ocorrer ao longo do ano e no interior das casas de vegetação. PALAVRAS-CHAVE: Predador, fecundidade, fotofase, comportamento, controle biológico ABSTRACT -Several species of Orius Wolff are used in biological control of thrips in protected cultivations in temperate regions, but some of them show reproductive diapause, compromising the efficiency of these agents of biological control. There are no reports on the biology of the neotropical species Orius thyestes Herring under different environmental conditions. The purpose of this work was to investigate the influence of photoperiod on reproduction and longevity of this predator. Nymphs were kept in petri dishes in climatic chambers at 28 ± 1°C, 70 ± 10% RH and under the photoperiods of 12L:12D, 11L:13D, 10L:14D e 09L:15D. The mating adults were kept in petri dishes with Bidens pilosa L. Asteraceae inflorescences as oviposition substracts and eggs of Anagasta kuehniella (Zeller) (Lepidoptera: Pyralidae) as food. The pre-oviposition and oviposition periods, fecundity and longevity were evaluated and O. thyestes did not show reprodutive diapause in all photoperiod conditions established. The mean number of eggs obtained per female decreased with the reduction of the photophase, with a difference (P < 0.05) between the values obtained in 12h and 9h of photophase. Longevity of females and males under 9h photophase was shorter (P < 0.05) than in all...

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“…Tal resultado demonstra não haver influência do fotoperíodo sobre a reprodução dessa "raça" de O. insidiosus nas condições testadas; nenhuma fêmea do predador deixou de colocar ovos, porém, os dados aqui registrados diferem daqueles verificados por KINGSLEY & HARRINGTON (1982), os quais observaram que no fotoperíodo 12L:12E a 25ºC, 80% das fêmeas de O. insidiosus entraram em diapausa. RUBERSON et al (1991) verificaram que, em fotofase menor que 13 horas, ocorre uma diapausa facultativa nessa espécie, no Hemisfério Norte.…”

Section: Resultsunclassified

Orius insidiosus (Say, 1832) (Heteroptera, Anthocoridae): sensibilidade ao fotoperíodo e diapausa reprodutiva?

Silveira

Bueno

2003

Rev. Bras. entomol.

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ABSTRACT. Orius insidiosus (Say, 1832) (Heteroptera, Anthocoridae): sensitivity to diapause-inducting photoperiods? The minute pirate bugs, Orius spp., are known as predators on several pests as thrips, aphids, spider mites and whiteflies. Orius insidiosus is an important thrips predator, commercially used around the world. However, one of the main problems on biological control of thrips in temperate regions is the occurrence of reproductive diapause in Orius species. This characteristic promotes the interruption of biological control strategies when predators are exposed to short photoperiods. This research had as objective to evaluate the influence of different photoperiod conditions on eggs/nymphs and adults of O. insidiosus in laboratory. The trials were carried out through the combination of eggs/nymphs and adults reared under the photoperiods 10L:14D; 11L:13D; 12L:12D and 13L:11D, at 25±2ºC and 70±10% RH. The predators were maintained during their preimaginal development time under one of the photoperiods and, after being emerged as adults transferred to another photoperiod regime. The predator had a tendency to present longer development time under photoperiod 13L:11D. There was no influence of the different photoperiods conditions on the reproduction of O. insidiosus. The females laid eggs normally during all their lifetime. O. insidiosus is not sensitive to photoperiod evaluated and do not enter in reproductive diapause.

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Factors Influencing Termination of Reproductive Diapause in Orius insidiosus (Hemiptera: Anthocoridae)

Cited by 28 publications

References 0 publications

Induction and termination of diapause in Orius predatory bugs

Induction and termination of diapause in Orius predatory bugs

Influence of photoperiod on Orius thyestes Herring (Hemiptera: Anthocoridae) reproduction and longevity

Orius insidiosus (Say, 1832) (Heteroptera, Anthocoridae): sensibilidade ao fotoperíodo e diapausa reprodutiva?

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