Daño y control biológico de Oebalus insularis (Stal, 1872) (Hemiptera: Pentatomidae) en el cultivo del arroz (Oriza sativa L)
Rice consumption is considered the main food in the human diet. However, this grass is attacked by a number of pest insects. Worldwide, O. insularis is considered of secondary importance and is widely distributed in the countries of Latin America and the Caribbean. This pest insect feeds on the grow...
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| 格式: | bachelorThesis |
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2023
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| 主题: | |
| 在线阅读: | http://dspace.utb.edu.ec/handle/49000/13884 |
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添加标签 | 总结: | Rice consumption is considered the main food in the human diet. However, this grass is attacked by a number of pest insects. Worldwide, O. insularis is considered of secondary importance and is widely distributed in the countries of Latin America and the Caribbean. This pest insect feeds on the growing rice grain. Adults and nymphs suck the juice from the kernel during the filling and ripening stage. This causes empty, clear or sterile and stained grains. This paper aims to describe the damage and describe the main natural enemies reported for the O. insularis bug. This bug mainly attacks the rice grain, affects its development and causes a loss close to 50% of what is expected. The natural enemies that mostly attack O. insularis are parasitoids with 50% and predators with 25%. The parasitoids of the genus Trissolcus and Telenomus belonging to the family Platygastridae and Scelionidae respectively. The reported predators attacking rice bug adults belong to the hemiptera order of the Reduviidae family of the species Rocconota tuberculigera and Ricolla pallidinervis. It is concluded that despite the wide distribution of O. insularis it does not report a large number of natural enemies. Therefore, ecological life tables must be made to know the diversity of natural enemies of O. insularis in Ecuador. |
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