Evaluasi pelepasan Trichogramma spp. untuk pengendalian penggerek pucuk dan batang tebu
<p>The success and effectiveness evaluation of <em>Trichogramma </em>releases for controlling sugarcane top borer (<em>Scirpophaga excerptalis </em>(Walker)) and stalk borers (<em>Chilo </em>spp.) have not been intensively evaluated. This research was aimed...
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| Autores principales: | , , |
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| Formato: | article |
| Lenguaje: | EN ID |
| Publicado: |
The Entomological Society of Indonesia
2017
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/7dcdde802cfb4847bed362f785a3e708 |
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| Sumario: | <p>The success and effectiveness evaluation of <em>Trichogramma </em>releases for controlling sugarcane top borer (<em>Scirpophaga excerptalis </em>(Walker)) and stalk borers (<em>Chilo </em>spp.) have not been intensively evaluated. This research was aimed to evaluate the control technique of sugarcane borer complex by releasing <em>Trichogramma </em>spp. The evaluation approach was performance tests of the parasitoid fitness through determination of reproductive rate and parasitism capacity of the parasitoids. Field observations were also done to obtain the borers’ egg parasitism level in <em>Trichogramma </em>released and unreleased sugarcane fields. The observation was done by collecting the borers’ eggs in such fields and egg parasitism level was recorded. Results showed that releases of <em>Trichogramma chilonis </em>Ishii<em> </em>or <em>Trichogramma japonicum </em>Ashmead<em> </em>were not effectively caused egg parasitism on <em>S. excerptalis</em> or <em>Chilo </em>spp. A hundred % parasitism of <em>S. excerptalis</em> eggs and 77% parasitism of <em>Chilo</em> spp. were caused by <em>Telenomus </em>sp. <em>T. chilonis </em>parasitized only <em>Chilo </em>spp. Reproductive performance of <em>T. japonicum</em> indicated a low reproduction capacity. Mass releases of <em>Trichogramma</em> spp. for controlling the sugarcane borers’ complex in Indonesia has to be reconsidered by taking into account the species and release technique to obtain a successful biocontrol of sugarcane borers’ complex.</p> |
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