Preference of experienced and inexperienced Apolygus lucorum for resistant and susceptible varieties of cotton plants
Author of the article:CAO Yang1, 2** WU Di1 GENG Ting3 LI Ai-Li1 ZHANG Yong-Jun1*** GUO Yu-Yuan1
Author's Workplace:1. State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; 2. Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; 3. Langfang Scientific Research Trial Station, Chinese Academy of Agricultural Sciences, Langfang 065000, China
Key Words:Apolygus lucorum, cotton, varieties (lines), taxis selection
Abstract:
[Objectives] To provide a theoretical basis for breeding cotton varieties resistant to Apolygus lucorum (Meyer-Dür) and improve the IPM of this pest. [Methods] With pure air as the blank control, we explored the relative preference of experienced or inexperienced A. lucorum for the odors of two cotton varieties (lines): Ling-29 (resistant) vs. Kelin08-23 (susceptible), 07 Shengshi6 (resistant) vs. Kangbingdanzhu-1 (susceptible) in a “Y” tube olfactometer. [Results] Both experienced and inexperienced A. lucorum significantly preferred the susceptible cotton varieties Kelin08-23 and Kangbingdanzhu-1 to the resistant varieties, Ling-29 and 07 Shengshi. Furthermore, A. lucorum significantly preferred susceptible cotton plants that had been previously damaged by A. lucorum. [Conclusion] Generally speaking, A. lucorum significantly preferred intact susceptible cotton varieties to intact resistant cotton varieties. But A. lucorum insignificantly preferred induced susceptible cotton varieties to induced resistant cotton varieties.