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利用嗅觉仪观测采自不同栖境的异色瓢虫显明变种,对蚜虫与寄主植物复合体进行选择趋性试验。结果表明,不同栖境源异色瓢虫,对供试蚜虫与寄主植物复合体,均表现出强烈的趋性;表明各种生境并不影响异色瓢虫在不同生境间的迁移。
Olfactory apparatus was used to observe the obvious varieties of C. heterophylla collected from different habitats, and the selection test of the complex between aphids and host plants was carried out. The results showed that C. heterophyllus had a strong tendency to test the aphids and host plant complexes, indicating that all habitats did not affect the migration of C. heterochocia in different habitats.