Chronology of Infection of European Corn Borer (Lepidoptera: Pyralidae) with the Microsporidium
Nosema pyrausta:
Effect on Development and Vertical Transmission

Sajap, Ahmad Said; Lewis, Leslie C.

doi:10.1093/ee/21.1.178

Cited by 18 publications

(24 citation statements)

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“…Depending on the intensity of the infection and age of the host, N. pyrausta caused reductions in egg production and longevity of adults, as well as reduced survivorship among eggs, young larvae, and diapausing larvae (Zimmack & Brindley 1957;Siegel et al 1986a;Sajap & Lewis 1992). N. pyrausta effects on ECB can be minimal with infected larvae developing into viable adults.…”

Section: European Corn Borer: Nosema Pyraustamentioning

confidence: 99%

Microsporidia Biological Control Agents and Pathogens of Beneficial Insects

Bjørnson

2014

Microsporidia

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Section: European Corn Borer: Nosema Pyraustamentioning

confidence: 99%

Microsporidia Biological Control Agents and Pathogens of Beneficial Insects

Bjørnson

2014

Microsporidia

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“…3,[6][7][8][9]. Generally, control agents fall into two categories: i) fast-acting pathogens that cause acute diseases of their hosts, suitable for use as microbial insecticides in inundative biocontrol strategies, and ii) low virulence agents that produce chronic debilitating infections, better suited for classical biocontrol.…”

Section: Introductionmentioning

confidence: 99%

“…Nosema pyrausta Paillot (Microsporida, Nosematidae) is a common and widespread obligate intracellular parasite of ECB and plays an important role in suppressing its population levels [e.g. 8,21,24]. ECB is the only lepidopteran reported to be naturally infected with N. pyrausta [24].…”

Section: Introductionmentioning

confidence: 99%

“…However, the timing of infection is important in determining what effect the microsporidium has on its host [27]. Early instars of ECB larvae infected with N. pyrausta form abnormal pupae or adults and infections in later instars result in reduced adult longevity and fecundity [8,22,24,25,28,29]. Furthermore, N. pyrausta can increase ECB larval mortality under stresses such as weather extremes, diapauses, or crowding [6,22,24].…”

Section: Introductionmentioning

confidence: 99%

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Effects of combining Beauveria bassiana and Nosema pyrausta on the mortality of Ostrinia nubilalis

2010

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Abstract:We tested the combined effect of the fungus Beauveria bassiana and the microsporidium Nosema pyrausta on the European corn borer larvae, Ostrinia nubilalis, in the laboratory. The first instar of O. nubilalis larvae was the most sensitive to the B. bassiana infection followed by the fifth, second, third, and fourth instar (LC 50 s were 4.91, 6.67, 7.13, 9.15, and 6.51 x 10 5 conidia/ml for the first to fifth instars, respectively). Mortality of each instar increases positively with concentration of conidia. When B. bassiana and N. pyrausta were used in combination, mortality increased significantly in all instars. Relative to the B. bassiana treatment alone, the B. bassiana + N. pyrausta treatment decreased the LC 50 s by 42.16%, 37.63%, 21.60%, 27.11%, and 33.95% for the first to fifth instars, respectively. The combined effects of the two pathogens were mostly additive. However, at the two highest concentrations the pathogens interacted synergistically in the first and second instar. Individuals that survived the B. bassiana and B. bassiana + N. pyrausta treatments and developed into adults had significantly shorter lifespans and females oviposited fewer eggs than non-exposed insects. The effects on the longevity and the egg production were most pronounced at high concentration of B. bassiana conidia. © Versita Sp. z o.o.

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“…Fato interessante nesta associação inseto-microsporídeo refere-se a pesquisas relatando que estes parasitoides são indiretamente infectados por N. pyrausta. A infecção ocasiona redução na sobrevivência pré-imaginal, longevidade e fecundidade de M. grandii (ANDREADIS, 1980(ANDREADIS, , 1982LEWIS, 1987;SAJAP;LEWIS, 1988). Outros exemplos de microsporídeos do gênero Nosema associados a insetos de importância econômica ou mesmo que ocorrem naturalmente em populações de insetos terrestres são: N. locustae em populações de gafanhotos (HENRY, 1972), N. fumiferanae, incidindo em populações da broca da madeira Choristoneura fumiferana (Clemens) (Lepidoptera: Tortricidae) nas florestas da América do…”

Section: Introductionunclassified

Alterações nos parâmetros biológicos de Diatraea saccharalis (Lepidoptera: Crambidae) e Cotesia flavipes (Hymenoptera: Braconidae) causadas por Nosema sp. (Microsporidia: Nosematidae)

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Chronology of Infection of European Corn Borer (Lepidoptera: Pyralidae) with the Microsporidium Nosema pyrausta: Effect on Development and Vertical Transmission

Cited by 18 publications

References 0 publications

Microsporidia Biological Control Agents and Pathogens of Beneficial Insects

Microsporidia Biological Control Agents and Pathogens of Beneficial Insects

Effects of combining Beauveria bassiana and Nosema pyrausta on the mortality of Ostrinia nubilalis

Alterações nos parâmetros biológicos de Diatraea saccharalis (Lepidoptera: Crambidae) e Cotesia flavipes (Hymenoptera: Braconidae) causadas por Nosema sp. (Microsporidia: Nosematidae)

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