Tachinids associated with lepidopteran pests in agricultural crops in south-central region of Goiás, Brazil

Weber, Igor Daniel; Lopes, Welinton Ribamar; Paula, Letícia Chiara Baldassio de; Albernaz-Godinho, Karina Cordeiro; Czepak, Cecília

doi:10.1007/s10526-021-10098-3

Cited by 5 publications

(4 citation statements)

References 30 publications

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“…and Chetogena sp. on the E. urophylla variety platyphylla plantation agrees with reports on their adaptation to survive in monocultures near diversified agriculture crops (Weber et al, 2021).…”

Section: Discussionsupporting

confidence: 89%

Ecological importance of lepidopteran defoliators on eucalyptus plantations based in faunistic and natural enemy analyses

et al. 2023

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Areas planted with Eucalyptus urophylla S.T. Blake variety platyphylla F. Muell. (Myrtaceae) expand annually in most regions of Brazil. Many lepidopteran species defoliate this plant, but with damage varying per species. The objective of this study was to identify the pest status of lepidopteran defoliators based in the faunistic analysis of these insects and of their natural enemies on E. urophylla variety platyphylla plantations in a representative producing region of Brazil. Adult moths of lepidopterans and of their natural enemies were captured using a light trap, installed every two weeks, from September 2016 to August 2018. A total of 183, 10, three and 139 lepidopteran species was captured and classified as primary, secondary, without defined importance to eucalypt plants and non-identified with 1,419, seven, 465 and 876 individuals, respectively. Two primary pest species were constants, two accessories and six accidentals and all secondary ones were accidentals. Six primary pest species were common and dominant and four non-dominants. Faunistic indices indicated the main lepidopteran species that should be monitored in pest management programs. Seven hymenopteran species (65 individuals), three dipterans (49 individuals) and two hemipterans (four individuals) were the natural enemies collected using light traps. The monitoring of lepidopteran pests with light traps can contribute to the management and to reduce damage and control costs for these species, besides identifying natural enemies for biological control programs in Eucalyptus plantations.

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Section: Discussionsupporting

confidence: 89%

Ecological importance of lepidopteran defoliators on eucalyptus plantations based in faunistic and natural enemy analyses

et al. 2023

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“…Tachinids role as enemies of insect herbivores and in the structure and dynamics of natural ecosystems have been largely unexplored. Several large-scale caterpillar-rearing programs focusing on exophytic macrolepidoptera have, however, shown that parasitoidism by tachinids is often equivalent to and sometimes greater than that by hymenopteran parasitoids in the field ( Elkinton and Boettner, 2012 ; Weber et al, 2021 ). Thus, the tachinid has a great potential in biological control against different pests.…”

Section: Discussionmentioning

confidence: 99%

Effect of Tachinid Parasitoid Exorista japonica on the Larval Development and Pupation of the Host Silkworm Bombyx mori

Dai

Jiang

et al. 2022

Front. Physiol.

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The Tachinidae are natural enemies of many lepidopteran and coleopteran pests of crops, forests, and fruits. However, host-tachinid parasitoid interactions have been largely unexplored. In this study, we investigated the effects of tachinids on host biological traits, using Exorista japonica, a generalist parasitoid, and the silkworm Bombyx mori, its lepidopteran host, as models. We observed that E. japonica parasitoidism did not affect silkworm larval body weight gain and cocooning rate, whereas they caused shortened duration of molting from the final instar to the pupal stage, abnormal molting from larval to pupal stages, and a subsequent decrease in host emergence rate. Moreover, a decrease in juvenile hormone (JH) titer and an increase in 20-hydroxyecdysone (20E) titer in the hemolymph of parasitized silkworms occurred. The transcription of JH and 20E responsive genes was downregulated in mature parasitized hosts, but upregulated in parasitized prepupae while Fushi tarazu factor 1 (Ftz-f1), a nuclear receptor essential in larval ecdysis, showed dramatically reduced expression in parasitized hosts at both the mature and prepupal stages. Moreover, the transcriptional levels of BmFtz-f1 and its downstream target genes encoding cuticle proteins were downregulated in epidermis of parasitized hosts. Meanwhile, the content of trehalose was decreased in the hemolymph, while chitin content in the epidermis was increased in parasitized silkworm prepupae. These data reveal that the host may fine-tune JH and 20E synthesis to shorten developmental duration to combat established E. japonica infestation, while E. japonica silences BmFtz-f1 transcription to inhibit host pupation. This discovery highlights the novel target mechanism of tachinid parasitoids and provides new clues to host/tachinid parasitoid relationships.

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“…The order Lepidoptera represents 70% of known host species (Dindo and Grenier 2014;Dindo and Nakamura 2018). As natural enemies of these primarily phytophagous groups, tachinids have been considered one of the most important groups of biological control agents (Gudin and Messas 2018;Weber et al 2021), both in natural environments and in managed ecosystems (Stireman et al 2019). However, when compared to the diversity of tachinid species, host records for them are still scarce (Scaramozzino et al 2020).…”

Section: Acta Amazonicamentioning

confidence: 99%

Parasitism of Automeris liberia (Lepidoptera: Saturniidae) by tachinids (Diptera: Tachinidae) in oil palm in the Brazilian Amazon

Silva

Goulart

et al. 2023

Acta Amaz.

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Automeris liberia (Lepidoptera: Saturniidae) caterpillars are important defoliators of the African oil palm, Elaeis guineensis (Arecaceae) in Central and South America. The family Tachinidae (Diptera) comprises flies that are parasitoids of many insect pests, mainly from the order Lepidoptera. However, host records for tachinids are still relatively scarce. In the present work, we report the occurrence of Belvosia sp. aff. williamsi (Diptera: Tachinidae: Exoristinae: Goniini) and Leptostylum oligothrix (Diptera: Tachinidae: Exoristinae: Blondeliini) parasitizing caterpillars of A. liberia in E. guineensis in the municipality of Tailândia, state of Pará, Brazil. This is the first record of the parasitism of A. liberia by Leptostylum in Brazil, as well as by Belvosia in the world.

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Tachinids associated with lepidopteran pests in agricultural crops in south-central region of Goiás, Brazil

Cited by 5 publications

References 30 publications

Ecological importance of lepidopteran defoliators on eucalyptus plantations based in faunistic and natural enemy analyses

Ecological importance of lepidopteran defoliators on eucalyptus plantations based in faunistic and natural enemy analyses

Effect of Tachinid Parasitoid Exorista japonica on the Larval Development and Pupation of the Host Silkworm Bombyx mori

Parasitism of Automeris liberia (Lepidoptera: Saturniidae) by tachinids (Diptera: Tachinidae) in oil palm in the Brazilian Amazon

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