Contribution a l'étude biologique d'Opius concolor Szepl. (Hym. Braconidae) En élevage de laboratoire

Biliotti, E.; Delanoue, P.

doi:10.1007/bf02376097

Cited by 27 publications

(9 citation statements)

References 4 publications

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“…Upon receipt, the parasitoids were placed in a 45×45×45 cm cage that was freely provisioned with fly-infested olives, water, and a honey-water solution (50% by volume). Similar Psyttalia species that attack fruit-infesting tephritids oviposit into second or third instar larvae (Biliotti & Delanoue, 1959; Mohamed et al , 2003; Billah et al , 2005), with the offspring completing development in the host's puparium. The parasitoids were, therefore, provided with olives infested 6–10 days earlier, containing a mixture of second- and third-instar hosts.…”

Section: Methodsmentioning

confidence: 99%

Psyttalia ponerophaga (Hymenoptera: Braconidae) as a potential biological control agent of olive fruit fly Bactrocera oleae (Diptera: Tephritidae) in California

Sime

Daane

Kirk³

et al. 2007

Bull. Entomol. Res.

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The olive fruit fly, Bactrocera oleae (Rossi), is a newly invasive, significant threat to California's olive industry. As part of a classical biological control programme, Psyttalia ponerophaga (Silvestri) was imported to California from Pakistan and evaluated in quarantine. Biological parameters that would improve rearing and field-release protocols and permit comparisons to other olive fruit fly biological control agents were measured. Potential barriers to the successful establishment of P. ponerophaga, including the geographic origins of parasitoid and pest populations and constraints imposed by fruit size, were also evaluated as part of this investigation. Under insectary conditions, all larval stages except neonates were acceptable hosts. Provided a choice of host ages, the parasitoids' host-searching and oviposition preferences were a positive function of host age, with most offspring reared from hosts attacked as third instars. Immature developmental time was a negative function of tested temperatures, ranging from 25.5 to 12.4 days at 22 and 30 degrees C, respectively. Evaluation of adult longevity, at constant temperatures ranging from 15 to 34 degrees C, showed that P. ponerophaga had a broad tolerance of temperature, living from 3 to 34 days at 34 and 15 degrees C, respectively. Lifetime fecundity was 18.7 +/- 2.8 adult offspring per female, with most eggs deposited within 12 days after adult eclosion. Olive size affected parasitoid performance, with lower parasitism levels on hosts feeding in larger olives. The implications of these findings are discussed with respect to field manipulation and selection of parasitoid species for olive fruit fly biological control in California and worldwide.

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Section: Methodsmentioning

confidence: 99%

Psyttalia ponerophaga (Hymenoptera: Braconidae) as a potential biological control agent of olive fruit fly Bactrocera oleae (Diptera: Tephritidae) in California

Sime

Daane

Kirk³

et al. 2007

Bull. Entomol. Res.

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“…As a consequence, many of the parasitoid records for these species are from host plants other than coffee. Some of these parasitoids are exceptionally wellknown, especially P. concolor, mass reared on medfly for augmentative programmes in the Mediterranean region (Biliotti & Delanoue, 1959;Monastero & Delanoue, 1966;Kapatos et al, 1977;Raspi & Loni, 1994;Loni, 1997). Several species introduced to Hawaii for biological control programmes have also been studied in considerable detail (Pemberton & Willard, 1918;Clausen et al, 1965;Ramadan et al, 1989).…”

Section: Composition By Guildsmentioning

confidence: 99%

Parasitoids of medfly,Ceratitis capitata, and related tephritids in Kenyan coffee: a predominantly koinobiont assemblage

Wharton

Trostle

Messing

et al. 2000

Bull. Entomol. Res.

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Arabica coffee was sampled from two sites in the central highlands of Kenya (Rurima, Ruiru) and one site on the western side of the Rift Valley (Koru). Three species of ceratitidine Tephritidae, Ceratitis capitata (Wiedemann), C. rosa Karsch and Trirhithrum coffeae Bezzi, were reared from sites in the central highlands, and an additional species, C. anonae Graham, was recovered from the western-most site. Ten species of parasitic Hymenoptera were reared from these tephritids. The parasitoid assemblage was dominated by koinobionts. Eight of the species are koinobiont endoparasitoids, but only one idiobiont larval ectoparasitoid was reared, and only one idiobiont pupal endoparasitoid. The effects of sampling bias on determination of parasitoid assemblage size associated with concealed hosts are discussed. The potential for use of these parasitoids in biological control is also discussed. Most of the parasitoid species recovered during this study are capable of developing on C. capitata, while several also attack C. rosa. Both flies are notorious pests of tropical and subtropical fruits.

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“…These authors suggest that P. humilis is an available name for sub-Saharan populations that are morphologically similar to P. concolor, and we have elected to use this description to provide separation of the material used in this study as compared with north African derived P. concolor individuals used in many of the earlier European studies (e.g. Biliotti and Delanoue 1959;Kapatos et al 1977;Monastero and Delanoue 1966;Neuenschwander et al 1983).…”

Section: Introductionmentioning

confidence: 99%

Comparative evaluation of two olive fruit fly parasitoids under varying abiotic conditions

et al. 2010

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Psyttalia lounsburyi (Silvestri) and P. humilis (Silvestri) (Hymenoptera: Braconidae) were evaluated in California for their potential to control the invasive olive fruit fly, Bactrocera oleae (Rossi) (Diptera: Tephritidae). Psyttalia lounsburyi is a specialist on B. oleae while P. humilis also attacks other tephritid species. Field cage trials, conducted from 2006 to 2009, were used to compare P. lounsburyi and two populations of P. humilis (Kenya and Namibia) in California's interior valley and coastal regions. Both parasitoid species reproduced on B. oleae in all trials. Under similar abiotic conditions, offspring production per female was higher in P. humilis than in P. lounsburyi, suggesting that host specificity by P. lounsburyi does not confer a higher efficiency on B. oleae in cultivated olives. Two abiotic factors were shown to impact parasitoid efficiency. First, adult parasitoid survival was poor during periods of high summer temperatures, common to the olive production areas in California's interior valleys. Second, parasitism levels were lower on B. oleae larvae feeding in larger Ascolano cv. fruit than in smaller Manzanillo cv. fruit. Results are discussed relative to biological control of B. oleae in commercial olives and the usefulness of natural enemies specialized to attack fruit flies in wild olives compared with the larger cultivated olive fruit.

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Contribution a l'étude biologique d'Opius concolor Szepl. (Hym. Braconidae) En élevage de laboratoire

Abstract: EN I~LEVAGE DE LABORATOIRE PAR E. BILIOTTI et P. DELANOUE En 1910, MARCHAL obtint, de pupes de Daeus oleae r4colt4es en Tunisie, un Braconide qui rut d4crit comme esp~ce nouvelle par, SZE-PLIGETI SOUS le nom d'Opius concolor.

Cited by 27 publications

References 4 publications

Psyttalia ponerophaga (Hymenoptera: Braconidae) as a potential biological control agent of olive fruit fly Bactrocera oleae (Diptera: Tephritidae) in California

Psyttalia ponerophaga (Hymenoptera: Braconidae) as a potential biological control agent of olive fruit fly Bactrocera oleae (Diptera: Tephritidae) in California

Parasitoids of medfly,Ceratitis capitata, and related tephritids in Kenyan coffee: a predominantly koinobiont assemblage

Comparative evaluation of two olive fruit fly parasitoids under varying abiotic conditions

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