Generalist hymenopteran parasitoids of the leaf-miner Chromatomyia fuscula (Zett.) (Dipt.: Agromyzidae)

Darvas, B.; Andersen, A.; Thuróczy, C.

doi:10.1080/002229399300092

Cited by 4 publications

(5 citation statements)

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“…Parasitoid species composition and proportionate contribution to overall parasitoid abundance vary in different areas and seasons (Darvas et al 1999;Chen et al 2003). As was pointed out above, no braconid species were obtained in the present study.…”

Section: Resultsmentioning

confidence: 89%

Chalcidoid parasitoids of Chromatomyia horticola (Gour.) (Dip. Agromyzidae) in Sivas Province, Turkey

Gençer

2004

J Pest Sci

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Chromatomyia horticola (Goureau, 1851) (Diptera Agromyzidae) is a polyphagous species and very common worldwide. In this study, parasitoids of Chromatomyia horticola were investigated on various plants during 2003 in the Sivas province. Infested leaves were sampled weekly and kept in the laboratory to observe and count emerging leafminers and parasitoid adults. Eight parasitoid species were reared belonging to Eulophidae and Pteromalidae (Chalcidoidea). Diglyphus iseae (Walker), Pediobius metallicus (Nees) and Diglyphus pachyneurus Graham represent the predominant parasitoid species. Among the parasitoids reared, Aprostocetus flavifrons (Walker), Merismus sp., and Chrysocharis crassiscapus (Thomson) have been newly recorded in Turkey and Aprostocetus flavifrons, Chrysocharis crassiscapus, Diglyphus pachyneurus Graham, and Merismus sp. were recorded for the first time from C. horticola.

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Section: Resultsmentioning

confidence: 89%

Chalcidoid parasitoids of Chromatomyia horticola (Gour.) (Dip. Agromyzidae) in Sivas Province, Turkey

Gençer

2004

J Pest Sci

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“…The occurrence and relative abundance of leafminers associated with seasons and host plants may reflect the impact of climate and their distinct preferences for host plants (Parella 1987). Just the same, parasitoid species composition and proportionate contribution to overall parasitoid abundance vary in different areas and seasons (Darvas et al 1999;Chen et al 2003). This study showed that under natural conditions the leafminers in Middle Anatolia were attacked by a diverse parasitoid complex.…”

Section: Discussionmentioning

confidence: 99%

Contribution to the Knowledge of the Chalcid Parasitoid Complex (Hymenoptera: Chalcidoidea) of Agromyzid Leafminers (Diptera: Agromyzidae) from Turkey, with New Hosts and Records

Gençer¹

2009

Journal of Plant Protection Research

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“…The collecting bottles (with 70% alcohol) were emptied about once a week, and C. fuscula and 15 species of chalcidoid parasitoids were sorted out. These species had been reared from C. fuscula mines in the area (Hagvar et al, 1994), and made up the majority of parasitoids attacking C. fus cula in Norway, although none of them has C. fuscula as their only host (Trandem, 1998; see also Hagvar et al, 1998 andDarvas et al, 1999). A total of 51,600 specimens were sorted out, including the host C. fuscula (22% of the catches).…”

Section: Methodsmentioning

confidence: 99%

“…The maximum species richness in the crop always occurred in July or August (range: week 28-34), and in the boundary in July, August or September (range: week 26-36). Darvas et al (1999) reared C. fuscula and its parasitoids during a six-week study in 1992 in two Norwegian barley fields, one of them only 1 km from our field. That year had an unusually warm and dry May and June, and was not representative for our study period (1991-97) (Hagvar et al, 1998).…”

Section: Phenology Of C Fusculamentioning

confidence: 99%

“…That year had an unusually warm and dry May and June, and was not representative for our study period (1991-97) (Hagvar et al, 1998). The general flight periods given by Darvas et al (1999) are based on literature from other countries and may be unreliable for Norway. However, taking into account the effect of latitude, the periods given in Darvas et al (1999) accord fairly well with our data, except for Neochrysocharis aratus, which had a longer activity period in our study (Table 1).…”

Section: Phenology Of C Fusculamentioning

confidence: 99%

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Phenology and sex ratio of the parasitoids of a cereal leaf miner Chromatomyia fuscula (Diptera: Agromyzidae)

Hågvar¹,

Trandem²,

Hofsvang³

2000

Eur. J. Entomol.

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Abstract. The univoltine leaf miner Chromatomyiafuscula Zetterstedt is a Scandinavian cereal pest. We wanted to compare the phe nology of C. fuscula in southern Norway with that of its most important natural enemies: 15 parasitoids of the families Eulophidae and Pteromalidae (Hymenoptera: Chalcidoidea). The use of two Malaise traps in an organically-grown spring barley field and its boundary through 6 seasons (1992)(1993)(1994)(1995)(1996)(1997)) also allowed us to compare these two habitats and to observe the effect of harvesting on the parasitoid activity without interference from pesticides. C. fuscula overwinters as an adult and oviposits in May/June. Few speci mens of the next generation, emerging in the crop, were caught in the boundary traps, suggesting the fly hibernates elsewhere. In contrast, the F i generation of the parasitoids was caught in considerable amounts both in the crop and boundary. The abundance of parasitoids was highest in July/August; in the crop it usually started decreasing well before harvesting; in the boundary it peaked two weeks or more after harvesting. The results suggest that many parasitoids (especially females) move from the crop to the boundary (or beyond) before harvesting. In both habitats parasitoid species richness usually increased until harvesting, and thereafter decreased. The pooled parasitoid female proportion was 0.36; in crop and boundary it was 0.30 and 0.66, respectively, and the majority of species had a higher proportion of females in the boundary than in the crop. The phenology of two of the most common parasitoids is presented: The pupal parasitoid Cyrtogaster vulgaris Walker (Pteromalidae) had a high activity in the boundary, also very early (females only) and late (both sexes) in the season. The larval parasitoid Diglyphus begini (Ashmead) (Eulophidae) was less active early and late in the season, and had a much smaller boundary activity than C. vulgaris. Both sexes were present throughout the season. The annual sex ratio of D. begini was density dependent, being highly male biased in the two years with highest catches. In C. vulgaris neither density nor habitat explained the sex ratio. D. begini probably overwinters inside the mine as a preadult, having one generation on C. fuscula in the crop and another one in an alternate host away from the habitats sampled here. C. vulgaris overwinters as fertilized females in the border habitat.

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Generalist hymenopteran parasitoids of the leaf-miner Chromatomyia fuscula (Zett.) (Dipt.: Agromyzidae)

Cited by 4 publications

References 20 publications

Chalcidoid parasitoids of Chromatomyia horticola (Gour.) (Dip. Agromyzidae) in Sivas Province, Turkey

Chalcidoid parasitoids of Chromatomyia horticola (Gour.) (Dip. Agromyzidae) in Sivas Province, Turkey

Contribution to the Knowledge of the Chalcid Parasitoid Complex (Hymenoptera: Chalcidoidea) of Agromyzid Leafminers (Diptera: Agromyzidae) from Turkey, with New Hosts and Records

Phenology and sex ratio of the parasitoids of a cereal leaf miner Chromatomyia fuscula (Diptera: Agromyzidae)

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