The scientific name of this insect is Chaetocnema hortensis, first described by Geoffroy in the family Coleoptera. This species closely resembles those found on corn pods, making it important to distinguish it from similar pests. Its geographical distribution spans from Heilongjiang and Inner Mongolia in the north, extending slightly beyond the Yangtze River in the south, reaching as far as Jinhua in Zhejiang Province. In the east, it is found along the coastal regions, while in the west, its range includes Shaanxi, Gansu, and Qinghai. The primary host plants are wheat and rice, which makes it a significant agricultural pest in these areas.
This beetle causes damage by feeding on the leaves and stems of its host plants, leading to reduced crop yield and quality. Morphologically, it has a small, oval body with distinct coloration patterns that vary depending on the region. It typically thrives in warm and humid environments, with adults emerging during the spring and summer months. To manage infestations, integrated pest management strategies are recommended, including cultural practices, biological control, and chemical treatments when necessary. For more detailed information on its life cycle, physical characteristics, and control methods, you can refer to the research conducted by Minzuo.
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