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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidade Estadual de Maringá
2017
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| Online Access: | https://www.redalyc.org/articulo.oa?id=187152898010 https://www.redalyc.org/journal/1871/187152898010/ https://www.redalyc.org/journal/1871/187152898010/html/ https://www.redalyc.org/journal/1871/187152898010/187152898010.epub https://www.redalyc.org/journal/1871/187152898010/movil |
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Table of Contents:
- Biological parameters of three Trichogramma pretiosum strains (Riley, 1879) (Hymenoptera: Trichogrammatidae) on eggs Helicoverpa armigera (Hübner, 1805) (Lepidoptera: Noctuidae) Gabriel dos Santos Carvalho Luciana Barboza Silva Maisa Sousa Veras Eliane Carneiro Bueno dos Santos Mayra Layra dos Santos Almeida Soislan Sousa Reis Biología soy caterpillar parasitoid eggs Biological control This project has an objective to study the biological parameters of Trichogramma pretiosum on eggs of H. armigera . The three strains of T. pretiosum were evaluated: TM, TMC and TLEM, from different places. The experimental establishing was completely randomizing with twenty repeats per treatment, being used by a female parasitoid by repe tition and later on they were offered 20 H. armigera eggs. The experiment was kept on BOD came ras to 25 ± 2° C, UR 60 ± 10% and photo phase of 14 hours. Evaluating the following biological parameters: parasitism percentage, emergency percentage, number of adults emerged per egg, sex ratio, viability, and lo ngevity and cycle duration. The parasitism percentage, viability and number of individuals per egg were hi gher for TM and TMC. The TMC strain presented a larger sex ratio proportion, not being different statisti cally from the TM stream. The longevity of the strain TM was different regarding the others. There was no variation rega rding the cycle duration. Therefore, according with the evaluated biologic parameters, it is concluded that Trichogramma pretiosum strain TM obtained a better egg development of H. armigera on laboratory conditions. 2017 artículo científico 1679-9283 https://www.redalyc.org/articulo.oa?id=187152898010 https://www.redalyc.org/journal/1871/187152898010/ https://www.redalyc.org/journal/1871/187152898010/html/ https://www.redalyc.org/journal/1871/187152898010/187152898010.epub https://www.redalyc.org/journal/1871/187152898010/movil en http://www.redalyc.org/revista.oa?id=1871 Acta Scientiarum. Biological Sciences application/pdf Universidade Estadual de Maringá Acta Scientiarum. Biological Sciences (Brasil) Num.3 Vol.39