Kemampuan Pemangsaan Menochilus sexmaculatus F. (Coleoptera: Coccinellidae) terhadap Rhopalosiphum maidis Fitch (Homoptera: Aphididae)
The objective of this research was to study the functional response of<em> M. sexmaculatus</em>. The hypothesis of this study was that age of predator and the numbers of prey will effect predation rate. To test this hypothesis, a set of prey (first and fourth instar and adult <em>R...
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| Autores principales: | , , |
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| Formato: | article |
| Lenguaje: | EN ID |
| Publicado: |
The Entomological Society of Indonesia
2015
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/77a84e4a85924066b3940abf4d9fdad7 |
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| Sumario: | The objective of this research was to study the functional response of<em> M. sexmaculatus</em>. The hypothesis of this study was that age of predator and the numbers of prey will effect predation rate. To test this hypothesis, a set of prey (first and fourth instar and adult <em>R. maidis</em>) was separately placed together with first and fourth instar larval and adult female of <em>M. sexmaculatus</em> at different densities. The length of the exposure of the hosts were respectively 13, 14 and 2 hours for 1st instar larval predator, 4th instar larval predator and adult predators. In addition a combination of 1st and 4th instar nymph of <em>R. maidis</em> were exposed to adult <em>M. sexmaculatus</em> for 24 hours. The result of this study showed that the ability to predation of young and adult <em>M. exmaculatus</em> was type II, indicating that<em> M. sexmaculatus</em> can be categorized as effective biological control agent. Adults of <em>M. sexmaculatus</em> are better predators than the larval stages. Based on non linear regression analysis, the maximum numbers of preys consumed by adult females of <em>M. sexmaculatus</em> was 300 individuals of various stages of<em> R. maidis</em> per 24 hours. |
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