Armazenamento De Trichogramma Pretiosum Riley (Hymenoptera: Trichogrammatidae) Em Baixas Temperaturas

Rodrigues, S. M. M.; Sampaio, Marcus Vinícius

doi:10.1590/1808-1657v78p0452011

Cited by 4 publications

(1 citation statement)

References 5 publications

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“…Storing natural enemies at low temperatures is also a factor made possible through knowledge of the effect of temperature on the development of the parasitoid. This method promotes success in mass rearing, constant material for use in laboratory experiments, as well as release in the field at times of greatest occurrence of the insect pest targeted (Chen et al 2008;Rodrigues and Sampaio 2011).…”

Section: Introductionmentioning

confidence: 99%

Thermal requirements of Trichogramma pretiosum (Hymenoptera: Trichogrammatidae) lines in Neoleucinodes elegantalis (Lepidoptera: Crambidae) eggs

Coutinho

Souza

Pontes

et al. 2021

Rev. Colomb. Entomol.

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This study aimed to evaluate the impact of temperature on the development of two lines of Trichogramma pretiosum (Hymenoptera: Trichogrammatidae), to determine the thermal requirements of this parasitoid wasp on Neoleucinodes elegantalis (Lepidoptera: Crambidae) eggs. The experiment was carried out with two lines (“Ubajara” and “Guaraciaba”, Ceará State) of T. pretiosum collected naturally parasitizing eggs of N. elegantalis in tomato (Solanum lycopersicum) fruits. In this experiment, 40 eggs of the host N. elegantalis and 4 females of the parasitoids were used, with exposure to parasitism for 24 hours at 25 ± 1 °C, relative humidity of 70 ± 10 %, and 12-h photophase. At the end of this period, females were removed and the tubes were transferred to incubators (RH = 70 ± 10 %; 12-h photophase), exposed to 15, 20, 25, 30, or 35 °C, until emergence of the following generation of the parasitoids. The percentage of emergence, sex ratio, the number of parasitoids that emerged per egg, and cycle duration were assessed. The experiments were set up in a completely randomized experimental design with 5 treatments (temperatures) and 12 replicates. ANOVA was conducted and the means were compared by Tukey test (P < 0.05). The base temperatures were 10.77 °C and 10.86 °C and the number of generations per year were 33.29 and 35.63 for “Ubajara” and “Guaraciaba”, respectively. The study showed that temperature changed the biological parameters, and cycle duration of the “Ubajara” and “Guaraciaba” lines decreased as temperature increased.

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Section: Introductionmentioning

confidence: 99%

Thermal requirements of Trichogramma pretiosum (Hymenoptera: Trichogrammatidae) lines in Neoleucinodes elegantalis (Lepidoptera: Crambidae) eggs

Coutinho

Souza

Pontes

et al. 2021

Rev. Colomb. Entomol.

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The prospects for cryopreservation of noctuid eggs in the mass production of Trichogramma spp.

et al. 2021

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Evaluation of cold storage techniques to improve mass rearing of Cleruchoides noackae from Thaumastocoris peregrinus eggs

Rodrigues,

Tavares,

Zanuncio

et al. 2023

Bull. Entomol. Res.

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The egg parasitoid Cleruchoides noackae Lin & Huber, 2007 (Hymenoptera: Mymaridae) is originated from Australia and the main biological control agent of Thaumastocoris peregrinus Carpenter & Dellapé, 2006 (Hemiptera: Thaumastocoridae) on Eucalyptus L'Hér (Myrtaceae). Companies that grow Eucalyptus are in need of a mass rearing protocol to increase the number of individuals produced and improve the quality of this parasitoid. The aim of this study was to define a protocol for mass rearing C. noackae in T. peregrinus eggs, based in the evaluations of the key biological attributes of this parasitoid in the parental and F1 generations, after the cold storage of the parasitised host eggs. Two methods were tested as C. noackae rearing protocols. In the first, parasitised eggs of T. peregrinus by C. noackae were cold stored for 7 days after being left in a climatic chamber at 24 ± 2°C, 60 ± 10% RH and a photoperiod of 12:12 (light:dark) h (standard environmental conditions) for 3, 6, 9 or 12 days. In the second, T. peregrinus eggs parasitised by C. noackae were maintained in a climatic chamber under standard environmental conditions for 6 days, after which these eggs were cold-stored for 0 (control), 7, 14 or 21 days. Parasitism (%), and the development period (parasitism to adult) and female proportion (%) of C. noackae were evaluated. Based on the results (parental generation: parasitism, around 45%; F1 generation: parasitism, around 55%; development period, around 16 days; female proportion, around 60%), eggs should be stored at 5°C on the sixth day after parasitism by C. noackae and maintained at this temperature for 7 days. The cold storage of T. peregrinus eggs, after parasitism, can be included in the mass rearing protocols of the parasitoid C. noackae.

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Armazenamento De Trichogramma Pretiosum Riley (Hymenoptera: Trichogrammatidae) Em Baixas Temperaturas

Cited by 4 publications

References 5 publications

Thermal requirements of Trichogramma pretiosum (Hymenoptera: Trichogrammatidae) lines in Neoleucinodes elegantalis (Lepidoptera: Crambidae) eggs

Thermal requirements of Trichogramma pretiosum (Hymenoptera: Trichogrammatidae) lines in Neoleucinodes elegantalis (Lepidoptera: Crambidae) eggs

The prospects for cryopreservation of noctuid eggs in the mass production of Trichogramma spp.

Evaluation of cold storage techniques to improve mass rearing of Cleruchoides noackae from Thaumastocoris peregrinus eggs

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