Storage, Manipulation of Emergence, and Estimation of Numbers of
Trichogramma pretiosum123

Stinner, R. E.; Ridgway, R. L.; Kinzer, R. E.

doi:10.1093/ee/3.3.505

Cited by 14 publications

(8 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The low emergence seen in our work may have been due to the longer rearing time of 24 days at 15 ~ This might result in higher mortality in the immature stages. When T. pretiosum was reared for varying lengths of time at reduced temperatures, Stinner et al (1974a) reported no change in the sex ratio. Schread & Garman (1934), however, found an increase in the production of male parasitoids of both T. minutum and T. pretiosurn when immature stages were exposed to 10~ for 12 to 40 days.…”

Section: Methods and Resultsmentioning

confidence: 94%

“…The effect of rearing temperature on species of Trichogramma has been discussed by Schread & Garman (1934), Lund (1938), Quednau (1957), and Stinner et al (1974aStinner et al ( , 1974b. While not host specific, members of the Trichogrammatidae do show certain preferences in the species of host egg they attack (Quednau, 1956;Taylor & Stern, 1971;Curl & Burbutis, 1978;Benoit & Voegele, 1979).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Isoenzyme patterns and biology of Trchogramma minutum as influenced by rearing temperature and host

Smith

Hubbes

1986

Entomologia Exp Applicata

View full text Add to dashboard Cite

Females of Trichogramma minutum Riley reared at temperatures below 17 °C had lower percent emergence, lower fecundity on the first day of emergence, and a reduced rate of population increase (r1) than those reared at temperatures above 17 °C. Parasitoids were more fecund and lived longer when raised on Choristoneura fumiferana (Clemens) compared to Ephestia kuehniella (Feller). The parasitoids performed better when parasitizing the same species of host on which they had been reared. Isoenzyme patterns were not affected when T. minutum was reared at 13 or 27 °C but additional bands appeared when parasitoids were reared on Sitotroga cerealella (Olivier) compared to C. fumiferana. No correlation could be made between biological and biochemical changes in T. minutum. Isoenzymes have the potential to assess the quality of parasitoids during mass production. Zusammenfassung Einfluss von Zuchttemperatur und Wirt auf Isoenzymmuster und Biologie von Trichogramma minutum Riley Weibchen von Trichogramma minutum, welche bei 17 °C gezüchtet wurden, hatten eine geringere Schlüpfrate, eine geringere Fruchtbarkeit am ersten Tag nach dem Schlüpfen sowie ein reduziertes Populationswachstum (ri) im Vergleich zu Tieren welche sich bei Temperaturen über 17 °C entwickelt hatten. Wurden die Parasitoiden auf Choristoneura fumiferana gezogen, so war ihre Fruchtbarkeitsrate wie auch Lebensdauer grösser als wenn Ephestia kuehniella als Wirt diente. Die parasitische Fähigkeit von T. minutum war immer auf derjenigen Wirtsart am grössten auf der die Schlupfwespen vorher gezogen wurden. Aufzuchttemperaturen von 13 °C oder 27 °C hatten keinen Einfluss auf den Isoenzymbändern wenn die Tiere statt auf C. fumiferana auf Sitotroga cerealella gezogen wurden. Es konnte aber kein Zusammenhang zwischen den biologischen und biochemischen Veränderungen gefunden werden. Hingegen besteht die Möglichkeit während der Massenproduktion die Qualität der Parasitoiden anhand von Isoenzymprofilen zu überwachen.

show abstract

Section: Methods and Resultsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Isoenzyme patterns and biology of Trchogramma minutum as influenced by rearing temperature and host

Smith

Hubbes

1986

Entomologia Exp Applicata

View full text Add to dashboard Cite

show abstract

“…Last-day pupae of T. pretiosum was stored from 4 to 10 days at 16.7 • C, and up to 12 days if temperature was lowered to 15 • C on the sixth day of exposure. Emergence after storage was 93% in a period of four hours at 26.7 • C (Stinner et al 1974).…”

Section: Constraints In the Mass Rearing Of Natural Enemiesmentioning

confidence: 98%

Mass Rearing of Egg Parasitoids for Biological Control Programs

Parra¹

2009

Egg Parasitoids in Agroecosystems With Emphasis on Trichogramma

View full text Add to dashboard Cite

“…Most research on cold storage of egg parasitoids has been conducted on Trichogramma species (Stinner et al, 1974;Curl & Burbutis, 1977;Jalali & Singh, 1992;Laing & Corrigan, 1995), Ooencyrtus ennomus Yoshimoto (Encyrtidae) (Anderson & Kaya, 1974, 1975 and Encarsia formosa Gahan (Aphelinidae) (Lacey et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

Emergence, longevity and fecundity of Trissolcus basalis and Telenomus podisi after cold storage in the pupal stage

Foerster

Doetzer

Castro

2004

Pesq. agropec. bras.

View full text Add to dashboard Cite

Pesq. agropec. bras., Brasília, v.39, n.9, p.841-845, set. 2004 Emergence, longevity and fecundity of Trissolcus basalis and Telenomus podisi 841Emergence, longevity and fecundity of Trissolcus basalis and Telenomus podisi after cold storage in the pupal stage Abstract -Pupae of Trissolcus basalis (Wollaston) and Telenomus podisi Ashmead (Hymenoptera: Scelionidae) were stored at 12ºC and 15ºC for 120-210 days, after different periods of parasitism at 18ºC in order to evaluate adult emergence, longevity and ovipositional capacity. There was no emergence of adults at 12ºC. The rate of emergence of parasitoids transferred to 15ºC at the beginning of the pupal stage was 1.5% and 26.3%, for T. basalis and T. podisi respectively, whereas those parasitoids transferred one day before the expected date of emergence at 18ºC showed 86.4% of emergence for T. basalis and 59.9% for T. podisi. Mean adult longevity was also significantly lower when pupae were transferred to 15ºC at the beginning of the pupal stage. Females emerged after storage and maintained for 120 to 210 days at 15ºC parasitized host eggs after transference to 25ºC; however, fecundity of T. podisi was reduced in about 80% after cold storage.Index terms: Insecta, hibernation, egg parasitoids, biological control. Emergência, longevidade e fecundidade de Trissolcus basalis e Telenomus podisi após estocagem no estágio pupalResumo -Pupas de Trissolcus basalis (Wollaston) e Telenomus podisi Ashmead (Hymenoptera: Scelionidae) armazenadas a 12ºC e 15ºC por 120 a 210 dias, após diferentes períodos de parasitismo a 18ºC, foram avaliadas quanto à emergência, longevidade e capacidade de parasitismo dos adultos. Não houve emergência de adultos a 12ºC. Os índices de emergência de parasitóides transferidos a 15ºC no início do estágio pupal foram 1,5% e 26,3%, em T. basalis e T. podisi, respectivamente, enquanto os transferidos um dia antes da data prevista para a emergência dos adultos a 18ºC apresentaram índices de emergência de 86,4% em T. basalis e 59,9% em T. podisi. De forma semelhante, a longevidade média dos adultos foi significativamente menor quando a transferência para 15ºC foi realizada no início do estágio pupal. Fêmeas emergidas após estocagem das pupas e mantidas por 120 a 210 dias a 15ºC parasitaram ovos hospedeiros após transferência para 25ºC; no entanto, a fecundidade de T. podisi foi reduzida em cerca de 80% quando mantida em baixa temperatura.Termos para indexação: Insecta, hibernação, parasitóides de ovos, controle biológico.

show abstract

Storage, Manipulation of Emergence, and Estimation of Numbers of Trichogramma pretiosum123

Cited by 14 publications

References 0 publications

Isoenzyme patterns and biology of Trchogramma minutum as influenced by rearing temperature and host

Isoenzyme patterns and biology of Trchogramma minutum as influenced by rearing temperature and host

Mass Rearing of Egg Parasitoids for Biological Control Programs

Emergence, longevity and fecundity of Trissolcus basalis and Telenomus podisi after cold storage in the pupal stage

Contact Info

Product

Resources

About